monday thursday - uttnumiform2016.utt.fr/papers/booklet-numiform.pdf · lunch ticket when entering...

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FORGE/TSV

Monday – Thursday

July 4-7th, 2016

UTT - Troyes, France

ProCAST/ESI

UTT/LASMIS

General Information

Welcome to NUMIFORM2016! This document includes all the information you will need as an attendee of NUMIFORM2016. We are glad to see you at NUMIFORM2016 and hope that you will have a great time!

CONFERENCE DATE Scientific days: July 4-6, 2016 (Monday - Wednesday) Social Programs / Free Programs: July 7 (Thursday) REGISTRATION (& WELCOME COFFEE) Date & Hour: Monday, July 4, 2016 at 07:30 Place: Conference Reception Area/Welcome Desk (building M – see the map) inside the University of Technology of Troyes (UTT). CHAMPAGNE TASTING PARTY Date/Hour: Monday July 4, at 20:00 Place: La Maison de l’Outil et de la Pensée Ouvrière (Tools and Trade Museum) CONFERENCE VENUE The conference will be held at University of Technology of Troyes (UTT), Troyes, France. CONFERENCE LANGUAGE The official language of the conference is English. CONFERENCE e-PROGRAM BOOKLET The Conference e-Program Booklet is available on the NUMIFORM2016 official website and also on the tablet that will be distributed to all participant BADGE Wearing a badge is mandatory in order to have access to the scientific sessions, refreshments and social events. WIFI Network name: NUMIFORM2016 Password: qsdfnumi COFFEE BREAK Coffee breaks are available between sessions and the coffee break stand is located in the hall of building N (see the map) LUNCH Lunches are provided every day to all participants (included in the registration package) at the university restaurant nearby. Lunch tickets will be given to participants during registration on Monday morning. Important: Participants are kindly asked to give their lunch ticket when entering the restaurant (1 lunch ticket each day, and non-exchangeable with the other day’s ticket).

GALA DINNER (BANQUET) Date / Hour: Tuesday July 5th, at 20:00 Place: Centre de Congrès de l’Aube LOCAL TIME GMT +1 ELECTRICITY SUPPLY The electric voltage is 220 Volts at 50 Hz. SMOKING POLICY Smoking is prohibited inside the premises. Specific places are available for smokers outside the buildings. CERTIFICATE OF ATTENDANCE A Certificate of Attendance will be given to all registered participants. PROGRAM CHANGES The Local Organizing Committee cannot assume liability for any changes in the program due to external or unforeseen circumstances. CONFERENCE WEB PAGE http://numiform2016.utt.fr/ NUMIFORM 2016 contact +33 3 25 71 76 94 IMPORTANT PHONE NUMBERS Taxi Troyens +33 3 25 78 30 30 Taxi de Sainte Savine +33 6 73 85 29 76 Taxi de Bréviandes +33 6 84 82 82 64 Train SNCF 36 35 Airport Paris Charles de Gaulle +33 1 70 36 39 50 Airport Paris ORLY +33 892 56 39 50 Medical / SAMU 15 Police 17 Fire & Accident/ Pompiers 18

The Heart of Troyes

http://numiform2016.utt.fr/

University of Technology of Troyes

Rue Emile Zola

Troyes Centre Ville

Troyes Centre Ville Tools and Trade Museum

Table of Contents

Preface ______ ______ p. 1

Conference Chairmen ____________________________________________________ p. 3

Local Organizing Committee & International Scientific Committee _________________ p. 4

Conference Venue_________________________ p. 6

Conference Area Layout ___________________________________ p. 7

Shuttle Stops & Shuttle Schedule ___________________________________________ p. 8

Partners and Sponsors ____________________________________________________ p. 12

Plenary Lectures __________ ______________________________________________ p. 13

General Program & List of Oral Presentations _________________________________ p. 16

Instruction for Chairpersons _______ p. 40

Instruction for Oral Presentations ___________________________________________ p. 41

Program of Oral Sessions with Abstracts ______________________________________ p. 42

Practical Information _____________________________________________________ p. 72

Map of Troyes _________________________________________________ p. 73

Map of Troyes City Center ________________________________________ p. 74

Lunches ______________________________________________________ p. 75

Champagne Party ______________________________________________ p. 76

Banquet (Gala Dinner) __________________________________________ p. 77

Social Program ________________________________________________ p. 78

Factory Outlets Information ______________________________________ p. 80

Participants Index _______________________________________________________ p. 82

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Preface Since the sixties, numerical methods for solving complex multiphysic problems have undergone continuous

improvements thanks to the availability of more and more powerful computers and the development of

interactive robust software based on realistic material behavior and sophisticated algorithms. Like all other

sectors of engineering sciences, the field of material forming simulation or “virtual forming” takes full

benefit from these scientific and technological developments.

The NUMIFORM triennial international conferences series, introduced by the late Prof. O.C.Zienkiewicz in

1982, aim to provide a forum where recent advances and future directions in the numerical simulations of

forming and manufacturing processes are discussed by scientists and engineers from academia and

industry worldwide. The topics covered are of great interest not only for academics from theoretical and

computational mechanics but also for professionals (engineers and researchers) from industry involved in

traditional and novel forming and manufacturing technologies for conventional and emerging materials.

This twelfth edition of the NUMIFORM international conferences series (NUMIFORM2016) is held at

University of Technology of Troyes (UTT) in France from July 4th to 7th 2016, co-organized with two

renowned French companies in the field of virtual forming technologies: ESI Group and Transvalor SA. As

the eleven previous editions of NUMIFORM international conferences series (summarized in the map given

hereafter), this edition provides a forum for scientists and practicing engineers alike to present the latest

findings in their research endeavor and at the same time to explore future research directions in the field.

A total of 205 oral presentations from 33 worldwide countries are registered including:

• Six plenary conferences given by renowned experts (three from academia and three from industry).

• 199 oral presentations organized in 12 mini symposia (MS), 2 general topics (TOPIC 3 and Topic 4)

and two industrial mini symposia (IMS) dedicated to the bulk forming (IMS1) and sheet forming (IMS2).

An industrial exhibition is also organized during the three conference days.

The 199 oral presentations are composed on 105 peer reviewed full papers (between 4 and 8 pages each

one), 71 single reviewed extended abstracts with less than 4 full pages and 24 short abstracts (80 words).

The free access to all these 199 papers will be provided to all the registered attendees. However, the 105

peer reviewed full papers will be published, after the conference, in the open access proceedings by MATEC

Web of Conferences (EDP Sciences) in the area of Mechanics with ISBN and referenced in many databases.

The name of this open access proceedings is: MATECWoC-15-Numiform2016. Some selected full papers

(selection made by the MS organizers) will be invited to be extended and submitted for peer review journal

IJFO (International Journal of Material Forming, ISSN: 1292-7775) after the conference.

We address our warm thanks to all the authors and participants to this twelfth edition of NUMIFORM

international conferences series. In addition, our thanks are due to public and private sponsors who,

through their financial support or their participation to the industrial exhibition, helped significantly the

organization of this event: UTT, ESI Group, Transvalor SA, Région Champagne-Ardenne, Conseil Général de

l’Aube, Grand Troyes, l’Association Française de Mécanique (AFM), MECAMAT, MK2i, Composite Integrity,

QForm. Special thanks are due to the colleagues who organized and fully managed the papers submitted to

their MS/IMS and Tasks, as well as many colleagues from the international Scientific Committee, the

Steering Committee and the Advisory committee who kindly performed the reviewing of some full papers

and/or extended abstracts. Many thanks are due to the colleagues from UTT/LASMIS, ESI Group and

Transvalor SA involved in the practical organization of NUMIFORM2016.

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Finally, we give you an appointment in 3 years for the THIRTEENTH edition to be held in 2019

(NUMIFORM2019) which will be officially announced by the steering committee during the banquet on

Tuesday 5 July 2016. During the same banquet, the “O. C. Zienkiewicz award” will be also attributed.

For the local organizing committee of NUMIFORM2016

K. Saanouni (UTT), Chairman

J.L. Chenot (Transvalor SA), Co-Chairman

J.L. Duval (ESI Group), Co-Chairman

Location of the twelve editions of NUMIFORM international triennial conferences series (1982-2016)

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Conference Chairmen

Chairman: Khemais Saanouni, Professor at UTT Professor K. Saanouni, 58, PhD from University of Technology of Compiègne (France) in Solid and Structural Mechanics (1988) is a distinguished professor of applied and computational mechanics at the University of Technology of Troyes (France), where he founds and leads a research group working on advanced modelling in virtual metal forming. He is teaching the theoretical and computational nonlinear mechanics with application to metal forming by large inelastic strains with ductile damage. Prof. K.

Saanouni is the author or co-author of more than 260 scientific publications. He has supervised more than 30 PhD thesis. He is member of editorial board of 2 international journals: IJDM and IJFO, and member of organizing committee of more than 40 scientific events. He is the authors of an academic book entitled “Damage mechanics in metal forming. Advanced Modeling and Numerical Simulation” , ISTE/Wiley, 2012, ISBN: 978-1-84821-348-7.

Co-Chairman: Argiris Kamoulakos, Scientific Director at ESI Group Dr Argiris Kamoulakos has a BSc (Honours) degree in Aeronautics from The City University, London in 1980 and two MS, one in Aeronautics and Astronautics and the second in Mechanical Engineering from MIT, Boston in 1982. In 1987 he obtained a Ph.D. in Aeronautical Structures from Imperial College of Science Technology and Medicine in London. Dr Argiris Kamoulakos joined ESI Group in 1994 bringing more than 20 years of industrial experience in the applications of the Finite Element Method. His expertise

covers linear/non-linear as well as static/dynamic industrial application developments. He worked for WS Atkins R&D, ZENTEC (MARC UK), SAMTECH and SONACA. He is a Fellow of the Royal Aeronautical Society (FRAeS) and an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA).

Co-Chairman: Jean-Loup Chenot, Scientific Director at Transvalor SA Dr Jean-Loup Chenot, Diploma Engineer from Polytechnique School of Paris (1968) and PhD from Pierre et Marie Curie University, Paris 6 (1973), is currently Scientific Director of Tranvalor SA since 2014. He was Professor and Head of the CEMEF (School of Mines of Paris at Sophia Antipolis) from 1979 to 2008. Chairman of the NUMIFORM'1992 conference and member of the NUMIFORM Steering Committee since 1992. He was also consultant for CEMEF and TRANSVALOR SA between 2009 and 2013. Dr J.L. Chenot is a

worldwide expert in numerical methods for metal forming processes and the co-author with R.H. Wagoner of the book " Metal forming analysis, Cambridge University Press, Cambridge, 2001".

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Steering Committee The actual members of the steering committee of NUMIFORM conferences series are: • Prof J. L. Chenot, CEMEF (France) • Prof S. Ghosh, Ohio S. U. (USA) • Prof Han Huetink, Univ Twente (The Netherlands) • Prof Kjell Mattiasson, Volvo (Sweden) • Prof Ken-Ichiro Mori, Toyohashi Univ (Japan) • Prof José Cesar de Sa, Univ Porto (Portugal) • Prof F. Barlat, Pohang University of Science and Technology (Korea) • Prof Shi-Hong Zhang, Institute of Metal Research, CAS (China)

Advisory Committee • Prof P. Boisse (INSA Lyon, France) • Prof F. Chinesta (EC Nantes, France) • Prof J.C. Gelin (ENSMM Besançon, France) • Prof P.Y. Manach (University of Bretagne Sud, France) • Prof E. Massoni (CEMEF, France) • Prof J.F. Agassant (CEMEF, France)

Local Organizing Committee T. Adnot (LASMIS/UTT) P.A. Adragna (LASMIS/UTT) H. Badreddine (LASMIS/UTT) P. Belloy (LASMIS/UTT) L. Caillot (LASMIS/UTT) J.L. Chenot (Transvalor/CEMEF) P. Conraux (ESI-Group) L. Daniel (LASMIS/UTT) S. De Wreede (LASMIS/UTT) R. Ducloux (Transvalor) I. Dugourd (ESI-Group) J.L. Duval (ESI-Group) A. Ebel (LASMIS/UTT) M. François (LASMIS/UTT) S. Fleury (LASMIS/UTT) C. Gallerne (ESI-Group)

D. Gangarossa (LASMIS/UTT) C. Garnier (LASMIS/UTT) B. Guelorget (LASMIS/UTT) C. Labergère (LASMIS/UTT) P. Lafon (LASMIS/UTT) G. Lecomte (ESI-Group) L. Moreau (GAMMA3/UTT) B. Panicaud (LASMIS/UTT) N. Plet (LASMIS/UTT) O. Reimbold (Transvalor) D. Retraint (LASMIS/UTT) L. Rigaud (LASMIS/UTT) E. Rouhaud (LASMIS/UTT) K. Saanouni (LASMIS/UTT) L. Stiot (LASMIS/UTT) C. Yendjadj (LASMIS/UTT)

International Scientific Committee Agassant J.F., (CEMEF, France) Altan T. (Ohio State University, USA) Angelet de Saracibar C. (Univ.of Barcelona, Spain) Asserin O. (CEA, Saclay, France) Ayad R. (URCA, France) Bachelet E. (SAFRAN, France) Badreddine H. (UTT, France) Balan T. (ENSAM/Metz, France) Banabic D. (Technical Univ. Cluj-Napoca, Romania) Bariani P. F. (University of Padova, Italy) Barlat F. (Postech, Korea)

Labergère C. (UTT, France) Lafon P. (UTT, France) Larsson R. (Chalmers Univ. of Technology, Sweden) Li D. Y. (Shanghai Jiaotong Univ, China) Li D. Z. (IMR, China) Liewald M. (IFU, University of Stuttgart, Germany) Lin J.G. (Imperial College, UK) Loge R. (EPFL, Lausanne, Switzerland) Lorong P. (PIMM ENSAM/Paris, France) Lubineau G. (KAUST, Saudi Arabia) Macret J.L. (Airbus-Defense and Space, France) Maier C. (Dunarea de Jos University of Galati,

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Batalha G F. (Sao Paulo University, Brazil) Bay F. (CEMEF, France) Bay N. (Technical University of Denmark) BelhadjSalah H. (ENIM, Tunisia) Bellet M. (CEMEF, France) Bergheau J.M. (ENISE, France) Binetruy C. ( ECNNantes, France) Boisse P., (INSA Lyon, France) Cao J. (Northwestern University, , USA) Cardoso R.P.R. (Univ West England, Bristol, UK) Celentano D. (Pontificia Cato. Univ. Santiago, Chile) Ceretti E. (University of Brescia, Italy) Cesar de Sa J., (University of Porto, Portugal) Chastel Y. (Renault, France) Chatti S. (IUL, Dortmund, Germany) Chen F.K. (Taipei Univ, Taiwan) Chenot JL (Transvalor, France) Chinesta F., (ECN, France) Choquart F. (CERA-Treves, Reims, France) Chung K. (Seoul National Univ, Korea) Coupez T. (EC Nantes, France) Cueto E. (University of Zaragoza, Spain) David L. (PSA, France) Delannay L. (Univ Catolique Louvain, Belgium) Dixit P.M. (Indian Institute of Tech. Kanpur, India) Dogui A. (ENIM, Tunisia) Dubar L. (Univ. Valencienne, France) Ducloux R. (Transvalor, France) Duroux P. (Arcelor Mittal, France) Duval J.L. (ESI, France) Flores F. (Univ National de Cordoba, Argentina) Fourment L. (CEMEF, France) Fratini L. (University of Palermo, Italy) Geers M.G.D (T. U. Eindhoven, the Neederlands) Geijselaers B. (Univ of Twente, the Neederlands) Gelin J.C., (ENSMM, France) Gerard P. (Arkema, France) Ghosh S., (Ohio State University, USA) Gilles P. (AREVA, France) Guo Y.Q. (URCA, , France) Habraken A.M. (University of Liège, Belgium) Hartley P. (Birmingham University, UK) Hirt, G. (IBF, RWTH-Aachen) Hogdson P. (Deakin Univ, Australia) Hora P. (ETH, Zurich, Switzerland) Hu P. (Dalian University of Technology, China) Huerta A. (Barcelona, Spain) Huétink H. (University of Twente, The Netherlands) Jiang Z-Y (Wollogong Univ., Australia) Kaftanoglu B. (Altim Univ, Ankara, Turky) Kawalla R. (IFM, TU Freiberg, Germany) Kuroda M. (Univ Yamagata, Japan) Kusiak J. (A.G.H., Krakow, Poland) Kuwabara T. (Tokyo Univ, Japan)

Romania) Manach P.Y., (UBS, France) Maniatty A. (Rensselaer Polytechnic Institute, USA) Martins P.A.F. (University of Lisbon, Portugal) Massoni E., (CEMEF, France) Mattiasson K. (Volvo, Sweden) Menezes L.F. ( University of Coimbra, Portugal) Micari F. (University of Palermo, Italy) Montmitonnet P. (CEMEF, France) Moon Y.H. (Pusan Univ, Korea) Mori KI, (Toyohashi University, Japan) Music O. (Altim Univ, Istambul, Turky) Nielsen K.B. (Aalborg University, Denmark) Oldenburg M. (Lulea Univ. of Technology, Sweden) Onate E. (University of Barcelona, Spain) Owen D.R.J (Swansea University, UK) Perez L. (U.T.F, Santa Maria, Chile) Picart P. (ESMM, Besançon, France) Pietrzyk M. (A.G.H., Krakow, Poland) Ponthot P. (University of Liège, Belgium) Potier-Ferry M. (Univ. Metz, France) Qin Y. (Glasgow, UK) Rahmoun M. (ENSA, Morocco) Rassili A. (University of Liège, Belgium) Rassineux A. (UTC, France) Reese S. (Aachen, Germany) Regnier G. (PIMM ENSAM/Paris, France) Rouhaud E. (UTT, France) Saanouni K. (UTT, France) Santos A. D. (University of Porto, Portugal) Signorelli J. (Univ National de Rosario, Argentina) Sola G. (Dassault Systems, France) Tabourot L. (Université de Savoie, Annecy, France) Tekkaya A.E. (IUL, TU Dortmund, Germany) Trochu F. (Polytech Montréal, Canada) Valente R. (Aveiro, Portugal) van den Boogaard A.H. (UT, the Neederlands) Van Tyne C. J. (Colorado School of Mines, USA) Vaz Junior M. (Univ. Santa Catarina, Brazil) Wagoner R. (Ohio State University, USA) Worswick M. (University of Waterloo, Canada) Wu P. (McMaster University, Canada) Yang D.Y (KAIST, Korea) Yilbas B. S. (KFUPM, Saudi Arabia) Yoon J-W (Deakin univ, Australia) Yoshida F. (Horishima, Japan) Yu H-L (Wollogong Univ, Australia) Zahrouni H. (Univ. Metz, France) Zeng P. (Tsinghua Univ, China)) Zhang K.F. (Harbin, China) Zhang SH, (IMR, China) Zhao Q. (Shondong UNiv, China)

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Site Map of UTT

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NUMIFORM

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Shuttle Stops

Two shuttles will be organized twice a day, in the morning and at the end of the day to relate hotels to the UTT Campus following the two indicated paths shown on the map below:

Zoom-out mode: The following map below locates this group of hotels associated with the pick-up points with respect to the UTT Campus situated approximately 4 Kilometers from downtown, where the conference takes place.

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Shuttle Schedule

Please be ready in-time at the shuttle stop indicated below that corresponds with your hotel to avoid any problems:

Circuit of Shuttle 1

Morning Evening

(Estimated Arrival Time at your hotel)

Monday Tuesday, Wednesday

Thursday

Program Social Monday, Tuesday, Wednesday

in front of Hotel Kyriad 07:00 07:45 08:15 19:00

Parking Hotel Ibis/Mercure 07:10 07:55 08:25 18:50

Public Bus Stop BEURNONVILLE

07:15 08:00 08:30 18:45

Arrive at UTT parking West 07:30 08:15 08:45 Depart from UTT at 18:30

Circuit of Shuttle 2

Morning Evening

(Estimated Arrival Time at your hotel)

Monday Tuesday, Wednesday

Thursday

Program Social Monday, Tuesday, Wednesday

Hotel de la Gare 07:00 07:45 08:15 18:45

Public Bus Stop HOTEL DE VILLE

07:10 07:55 08:25 18:55

Arrive at UTT parking West 07:30 08:15 08:45 Depart from UTT at 18:30

To see the map of Troyes on google map please click: https://www.google.fr/maps/@48.2975742,4.0784379,15z

https://www.google.fr/maps/@48.2975742,4.0784379,15z

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To know the location of the shuttle stops for each shuttle, please take a look on the maps below:

1) Circuit of Shuttle 1 (Hotel Kyriad Parking IBIS BEURNONVILLE UTT)

Shuttle Stop in front of Hotel Kyriad Troyes Hotel associated with this shuttle stop: Hotel Kyriad

Shuttle Stop PARKING IBIS The Shuttle Stop is located at the parking area of Hotel IBIS. Hotels associated with this shuttle stop: Hotel Ibis Troyes, Hotel Mercure Troyes, Hotel Ibis Styles.

Shuttle Stop BEURNONVILLE The Shuttle Stop is located at the public-bus-stop "BEURNONVILLE". Hotels associated with this shuttle stop: Hotel Arlequin and Hotel Ibis Budget

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2) Circuit of Shuttle 2 (Gare CARNOT TOWNHALL UTT)

Shuttle Stop GARE CARNOT The Shuttle Stop is located around public-bus-stop "GARE CARNOT", near hotel de la Gare. Hotels associated with this shuttle stop: Hotel de La Gare, Hotel Le Royal, Hotel Les Comtes de Champagne.

Shuttle Stop TOWNHALL (Hôtel de Ville) The Shuttle Stop is located near public-bus-stop in front of the Townhall. Hotels associated with this shuttle stop: Hotel du Cirque, Hotel Best Western, Hotel Le Relais St Jean.

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Partners, Exhibitors, and Sponsor

Partners:

Exhibitors :

Sponsor :

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Plenary Lectures

Speaker: Prof. F. Barlat (POSTECH, Republic of Korea) Dr. Barlat is full professor at the Pohang University of Science and Technology (POSTECH) in the Republic of Korea. He is the director of the Material Mechanics Laboratory at the Graduate Institute of Ferrous Technology (GIFT). His research focuses on the development of innovative plasticity theories for metals, as well as forming process and manufacturing technologies for steel products. Professor Barlat is associate editor for International Journal of Material Forming, and Modeling and Simulations in Materials Science and Engineering. He was the chairman of the 10th NUMIFORM conference, which was held in 2010 on POSTECH Campus. He published over 200 articles in peer-

reviewed scientific journals and received a number of awards, in particular, the Khan International Medal for outstanding life-long contributions to the field of Plasticity. Title: Advanced Constitutive Modeling and Application to Industrial Forming Processes Author: F. Barlat (POSTECH) and Dong-Jin Kim (POSCO) Day/Room/Hour: Tuesday/ Room M500/ 13:45-14:25 Abstract: Continuum constitutive descriptions of plasticity suitable for finite element simulations of sheet forming processes are succinctly discussed in this presentation. Although multi-scale approaches allow for a more explicit representation of the physical deformation mechanisms occurring at microscopic scales, they are usually not suitable for industrial applications because of the quick turnaround time needed for process design simulations. Therefore, advances in classical concepts such as plastic anisotropy and strain hardening are still very much in demand. Actual forming simulation examples conducted in the steel industry are presented for illustration purposes.

Speaker: Prof. K.J. Bathe (MIT, Cambridge, USA) Klaus-Jürgen Bathe is Professor of Mechanical Engineering at the Massachusetts Institute of Technology. He teaches and performs research in the areas of applied and computational mechanics of structures, fluids, and electromagnetics. Professor Bathe is also the Founder of the company ADINA R & D, Inc. where he leads the development of the ADINA system, used world-wide, for the analysis of structures, fluids, and multi-physics problems. He has published numerous articles, six textbooks and the book To Enrich Life. He is a co-editor of the international journal Computers and Structures, and the Editor of the proceedings of twelve M.I.T. Conferences on Nonlinear Finite

Element Analysis and seven M.I.T. Conferences on Computational Fluid and Solid Mechanics. He has been honored by the ASME, ASCE, U.S. National Academy of Engineering, M.I.T., and many honorary doctorates for his teaching, his pioneering, fundamental and widely used contributions in computational mechanics, and for bridging the world between Academia and Industry. Title: Advances in finite element methods for the simulation of forming processes Author: K.J. Bathe, MIT Cambridge, USA Day/Room/Hour: Monday/ Room M500 / 09:15-09:55 Abstract: We present some recent advances in finite element methods for the analysis of forming processes. These advances pertain to solid and shell finite elements for large strain solutions, contact analyses, improved explicit and implicit time integration schemes, the analysis of fluid-structure interactions, electromagnetic effects, and the development of "overlapping finite elements". The use of overlapping finite elements promises to be an avenue for very effective analysis schemes. Illustrative solutions are given to show the characteristics of the various methods discussed.

Speaker: Dr. O. Ghouati (Ford Research & Advanced Engineering, Aachen, Germany) Dr Omar Ghouati graduated in 1991 at ENSMM Besancon, France, in Mechanical Engineering, earned his PhD at University of Franche-Comté in 1994. He took a position of associate professor at the University of Franche-Comté in 1997. He joined Ford Research and Engineering in 2000. He is now a Technical Specialist in the field of stamping simulation. His field of research includes sheet metal process chain simulation, effect of manufacturing on product performance and modeling of metallic materials.

Title: Stamping simulation at Ford - Challenges and opportunities Author: O. Ghouati, E. Liasi and A. Zaum (Ford) Day/Room/Hour: Wednesday/ Room M500/ 13:45-14:25 Abstract: For high volume production, majority of components of the body in white are stamped. Driven by the pressure to reduce weight, part geometries and materials behaviors are increasing in complexity. It is now usual to use simulation to perform process layout and ensure the try-out phase is kept to the minimum. In this presentation we will give an overview

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of the use of stamping simulation at Ford. Based on actual cases, limitations and expectations for the simulation will be discussed.

Speaker: Prof. R. Logé (EPFL, Switzerland) Roland Logé graduated in 1994 at UCL, Belgium, in Materials Science Engineering, earned a Master of Science in Mechanics in 1995, at UCSB Santa Barbara (USA), and his PhD at Mines Paristech-CEMEF (France) in 1999. After a postdoc at Cornell University (USA) between 1999 and 2001, he entered CNRS in France, at the Ecole des Mines de Paris. He became CNRS Research Director in 2013, and in 2014 joined the Materials Institute of the School of Engineering at EPFL, as an associate professor, and holder of the PX Group Chair, where he now heads the Laboratory of Thermomechanical Metallurgy.

Title: Multiscale approach for the control of metallic microstructures in forming conditions Authors: R.E. Logé, M. Bernacki Day/Room/Hour: Wednesday/ Room M500/ 08:30-09:10 Abstract: The modelling of metallic microstructure evolutions in forming conditions is traditionally treated by introducing homogenization (or mean field) schemes at each integration point of a finite element mesh. Typical limitations arise in trying to predict the formation of substructures, or new grain structures, in complex thermomechanical processes. It is shown that a strategic dialogue between mean field and full field models, including 2D or 3D geometrical descriptions of microstructures, can lead to progress in simulation capabilities, and improved understanding of the associated phenomena.

Speaker: Dr M. Megahed (ESI_Group, Germany) Dr. Mustafa Megahed obtained his Ph.D. from the Technical University of Aachen, Germany, in 1993. Since then he has been involved with commercial CFD offerings. He filled several positions in development, support and engineering service. He joined ESI Group in 2004 where he enlarged the European CFD business several fold. Dr. Megahed now manages the CFD & Multiphysics Center of Excellence, leading a team of researchers focused on the development of new algorithms and creation of new solutions. His team and he are involved in Additive Manufacturing modelling since 2008 investigating several net shape processes including Topology Optimization, Powder Bed

processes, Blown Powder and HiPping. Title: Modelling Additive Manufacturing Authors: N. N'Dri, H.-W. Mindt, O. Desmaison and M. Megahed Day/Room/Hour: Tuesday/ Room M500/ 08:30-09:10 Abstract: Additive manufacturing offers engineers design freedom utilizing the process ability to create new functional products. Harnessing this potential has proven extremely challenging due to large amount of process parameters that interact in a highly complicated way with the material and the product being produced. Physics based modelling might provide the required insight to understand and manage the interdependency of the build process and to provide a reliable predictive tool for product quality. Modelling advancements and validation examples will be presented.

Speaker: Dr Y. Urushiyama (Chief engineer of Honda R&D Co.ltd., JAPAN) Dr. Urushiyama is currently Chief Engineer at Honda R&D Co. Ltd in the field of Light weight vehicle and related topics. Since 2015 he is visiting Professor, in Innovative Composite Center of Kanazawa Institute of Technology. He obtained his PhD from Touhoku University in 2004. From 1983 to 1994, he worked in the field of noise and vibration stress at Honda Automobile R&D Center and from 2001 to 2010 in the field of light weight structures.

Title: Expectation and Issue of Using CFRP for Automobile Structure Author: Y. Urushiyama (Honda R&D Co.ltd., JAPAN) Day/Room/Hour: Monday/ Room M500/ 13:45-14:25 Abstract: Vehicle weight reduction is one of important issue in automobile industry. Expectation of CFRP technology which is one of?weight reduction technologies for automobile engineer are considered. But mechanical property of CFRP is affected according to the conditions under many fabrication processes. Using process simulation for composite is effective to grasp the various process influences in designing process of CFRP structures. In this presentation, I mention that the application of manufacturing simulations, such as for determination of tolerance is important.

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GENERAL PROGRAM

&

LIST OF ORAL PRESENTATIONS

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General Program

7:30 - 8:30 08:30 - 09:10 08:30 - 09:10

08:30 - 09:15

Room A001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room A002

Chair:

R. Logé

Room C001

Chair: P.

Montmitonnet

Room C002

Chair: L. Dufort

Co-Chair:

A. Dereims

Room N101

Chair: K. Mocellin

Room A001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room A002

Chair:

P. Marquette

Co-Chair:

Y. Ming Li

Room C001

Chair:

A. Jacot

Room C002

Chair:

E. Hachem

Room N101

Chair:

C. Labergere

09:15 - 09:55 09:15 - 09:35 MS11-ID137

MS2 Keynote

ID257

(30 min)

MS4 - ID258 IMS2 - ID 156 IMS1 - ID88 09:15 - 09:35 MS11-ID62 IMS2 - ID 202 MS2 - ID48 MS12 - ID43 TOPIC3-ID230

Room A001

Chair: L. Fourment

Room A002

Chair:

P. Marquette

Co-Chair:

A. Dereims

Room C001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room C002

Chair: J.L. Duval

Co-Chair:

HR Kandikonda

Room N101

Chair: L. Penazzi 09:35 - 09:55 MS11-ID54

MS2 Keynote

ID7

(30 min)

MS4 - ID157 IMS2 - ID 186IMS1-ID61: Keynote lecture

H.R. Kandikonda09:35 - 09:55 MS11-ID158 IMS2 - ID 235 MS2 - ID35 MS12 - ID233 TOPIC3-ID76

10:00 - 10:20 IMS1 - ID20 IMS2 - ID 22 MS6-ID9 TOPIC3-ID126 09:55 - 10:15 MS11-ID129 MS4 - ID45 IMS2 - ID 19 09:55 - 10:15 MS11-ID131 IMS2 - ID 77 MS2 - ID40 MS12 - ID114 TOPIC3-ID265

10:20 - 10:40 IMS1 - ID37 IMS2 - ID 68 MS6-ID262 TOPIC3-ID145 10:15 - 10:45 10:15 - 10:45

10:40 - 11:00

Room A001

Chair: R. Valente

Co-Chair:

P. Lafon

Room A002

Chair:

L. Madej

Room C001

Chair: E. Cueto

Co-Chair:

A. Rassineux

Room C002

Chair:

M. Bellet

Room N101

Chair: J.C. Gelin

Co-Chair: T. Barriere

Room A001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room A002

Chair:

M. Bruenig

Co-Chair:

J. Cesar De Sa

Room C001

Chair:

I. Steinbach

Room C002

Chair:

E. Hachem

Room N101

Chair:

S.H. Zhang

Co-Chair:

S. Sieberer

Room A001

Chair: L. Fourment

Co-Chair: K. Mocellin

Room A002

Chair: J.L. Duval

Co-Chair:

B. Abbes

Room C001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room C002

Chair:

P.O. Bouchard

Room N101

Chair: Y. Korkolis

Co-Chair:

H. Badreddine

10:45 - 11:05 MS10 - ID6 MS2 - ID245 MS7 - ID23 MS8-ID149 TOPIC4-ID185 10:45 - 11:05 MS11-ID263 MS3-ID130 MS2 - ID17 MS12 - ID135 TOPIC3-ID271

11:00 - 11:20 IMS1 - ID16 IMS2 - ID 91 MS11 - ID215 MS6-ID65 MS5 - ID73 11:05 - 11:25 MS10 - ID46 MS2 - ID269 MS7 - ID59 MS8-ID95 TOPIC4-ID87 11:05 - 11:25 MS11-ID71 MS3-ID33 MS2 - ID210 MS12 - ID191 TOPIC3-ID248

11:20 - 11:40 IMS1 - ID104 IMS2 - ID 103 MS11-ID211 MS6-ID160 MS5 - ID138 11:25 - 11:45 MS10 - ID49 MS2 - ID250 MS7 - ID118 MS8-ID105 TOPIC4-ID184 11:25 - 11:45 MS11-ID61 MS2 - ID243 MS12 - ID228 TOPIC3-ID242

11:40 - 12:00 IMS2 - ID 155 MS11-ID201 MS5 - ID267 11:45 - 12:05 MS10 - ID168 MS2 - ID67 MS7 - ID101 MS8-ID42 TOPIC4-ID164 11:45 - 12:05 MS11-ID199 MS2 - ID216 TOPIC3-ID226

12:00 - 13:30 12:05 - 13:30 12:05 - 13:30

13:45 - 14:25 13:45 - 14:25 13:45 - 14:25

Room A001

Chair: E. Massoni

Co-Chair:

R. Wagoner

Room A002

Chair:

P. Breitkopf

Co-Chair:

J. Kusiak

Room C001

Chair:

M. Seefeldt

Room C002

Chair: O. Ghouati

Co-Chair:

H.R. Kandikonda

Room N101

Chair: F. Barlat

Co-Chair: J. Kim

Room A001

Chair:

L. Fourment

Co-Chair:

A. Rassineux

Room A002

Chair: S. Forest

Co-Chair:

E.. Rouhaud

Room C001

Chair:

P. Picart

Room C002

Chair:

M. Carin

Room N101

Chair:

R.Logé

Room A001

Chair:

P.O. Bouchard

Room A002

Chair:

G. Le Quilliec

Co-Chair:

L. Moreau

Room C001

Chair: J. Cesar de Sa

Room C002

Chair: ……

Co-Chair: ……

Room N101

Chair:

H.R. Kandikonda

Chair:

H. Badreddine

14:30 - 14:50 MS10 - ID162 MS2 - ID203 TOPIC4-ID111 TOPIC3-ID8 14:30 - 14:50 MS10 - ID70 MS1 - ID89 MS9 - ID4 MS8-ID56 MS2 - ID260 14:30 - 14:50 MS2 - ID261 MS10 - ID110 TOPIC4-ID227 TOPIC3-ID241

14:50 - 15:10 MS10 - ID78 MS2 - ID127 TOPIC4-ID12 TOPIC3-ID82 14:50 - 15:10 MS10 - ID79 MS1 -ID72 MS9 - ID117 MS8-ID176 MS2 - ID32 14:50 - 15:10 MS2 - ID64 MS10 - ID115 TOPIC4-ID198 TOPIC3-ID270

15:10 - 15:30 MS10 - ID264 MS2 - ID36 TOPIC4-ID99 TOPIC3-ID179 15:10 - 15:30 MS10 - ID254 MS1 - ID55 MS9 - ID259 MS2 - ID25 15:10 - 15:30 MS2 - ID151 MS10 - ID252 TOPIC4-ID172 TOPIC3-ID116

15:30 -15:50 MS11-ID122 MS10 - ID63 MS2 - ID218 TOPIC4-ID209 TOPIC3-ID256 15:30 -15:50 MS10 - ID144 MS1 - ID44 MS9 - ID47 MS2 - ID74 15:30 -15:50 MS2 - ID165 TOPIC4-ID125

16:00 - 16:30 16:00 - 16:30 16:00 - 16:30

Room A001

Chair: K. Mocellin

Co-Chair: L. Fourment

Room A002

Chair: P. Wu

Co-Chair:

D. Steglich

Room C001

Chair:

P. Montmitonnet

Room C002

Chair:

J. Cesar de Sa

Co-Chair:

C. Labergere

Room N101

Chair: M. Megahed

Co-Chair: F. Gagliardi

Room A001

Chair:

A. Rassineux

Co-Chair:

E. Cueto

Room A002

Chair:

E. Rouhaud

Co-Chair:

S. Forest

Room C001

Chair:

P. Montmitonnet

Room C002

Chair:

Y. Urushiyama

Co-Chair:

A. Pesin

Room N101

Chair:

P.O. Bouchard

Co-Chair:

H. Badreddine

Room A001

Chair:

E. Rouhaud

Room A002

Chair:

C. Labergere

Room C001

Chair:

A. Rassineux

Co-Chair:

E. Cueto

Room C002

Chair:

F. Barlat

Room N101

Chair: ……

Co-Chair: ……

16:30 - 16:50 IMS1 - ID3 MS3-ID75 TOPIC3-ID146 16:30 - 16:50 MS7 - ID109 MS1 - ID86 TOPIC3-ID5 MS3 - ID100 16:30 - 16:50 MS6-ID139 MS3 - ID24 MS7 - ID34 MS5 - ID246

16:50 - 17:10 IMS1 - ID141 MS3-ID93 TOPIC3-ID153 16:50 - 17:10 MS7 - ID247 MS1 -ID212 TOPIC3-ID121 MS3 - ID266 16:50 - 17:10 MS6-ID205 MS3 - ID28 MS7 - ID58 MS5 - ID208

17:10 - 17:30 IMS1 - ID97 MS5 - ID180 MS4 - ID92 MS3-ID148 TOPIC3-ID80 17:10 - 17:30 MS7 - ID53 MS1 - ID143 MS4 - ID187 TOPIC3-ID132 MS3 - ID161 17:10 - 17:30 MS6-ID136 MS7 - ID140 MS5 - ID237

17:30 - 17:50 IMS1 - ID244 MS5 - ID173 MS4 - ID192 MS3-ID190 TOPIC3-ID272 17:30 - 17:50 MS7 - ID170 MS1 - ID142 MS4 - ID175 TOPIC3-ID194 MS3 - ID238 17:30 - 17:50 MS6-ID213 MS7 - ID207

17:50 - 18:10 IMS1 - ID52 MS5 - ID177 MS4 - ID193 MS3-ID221 17:50 - 18:10 MS7 - ID174 TOPIC3-ID255 MS3 - ID 81 17:50 - 18:10 MS6-ID240 MS3-ID31 MS7 - ID224

18:00 - 19:30 20:00

20:00 - 22:00

MS1 MS2 MS3 MS4 MS5 MS6 MS7 MS8 MS9 MS10 MS11 MS12 TOPIC3 TOPIC4 IMS1 IMS2

2 7 4 3 3 3 3 3 1 4 6 2 7 3 4 4 number of sessions

Coffee Break

Lunch

Plenary Lecture 6 (Room M500):

Dr O. Ghouati, Germany

Coffee Break

MS3 Keynote

ID27 (30 mn)

Champagne Tasting Party at La Maison de l’Outil et de la Pensée Ouvrière (Tools and Trade Museum)


Dr M. Megahed, Germany

Coffee Break

Lunch


Prof. F. Barlat, Korea

Coffee Break

Meeting of the NUMIFORM Steering committee Banquet +NUMIFORM'2019 at Centre de Congrès

Lunch


Dr Y. Urushiyama, Japan

Coffee Break

MS4 Keynote

ID14 (30mn)

MS4 Keynote ID159

(30mn)

MS5 Keynote

ID171 (30 mn)

PROGRAM NUMIFORM 2016


Prof. R. Logé, Switzerland

Social Program

limited to 100 persons

(lunch included):

1) Visit to the Charles de

Gaulle Memorial

and

2) Visit to the champagne

and wine producer

Barfontarc House

see detailed information

on the website

3) For those who don't

participate to the social

program proposed above,

they can freely visit the

Troyes City Center and/or

the factory outlets.

Information available on

the registration desk.

MONDAY, 4 JULY 2016 TUESDAY, 5 JULY 2016 WEDNESDAY, 6 JULY 2016

09:00 - 18:00

Registration & Welcome Coffee

Opening Ceremony

Plenary 1 (Room M500):

Prof. K.J. Bathe, USA

Coffee Break

MS3 Keynote

ID90 (30 mn)

MS11 Keynote

ID50 (30 mn)

MS11- 2 Keynotes:

ID251 (30mn)

ID94 (30mn)

THURSDAY, 7 JULY

2016

18

List of Oral Presentations ordered by ID number (without plenaries)

Submission ID

Day Room Hour Title Contact Author Full Name

Contact Author Organization Contact Author Country

Topics

3 Monday, 4 July 2016

A001 16:30 - 16:50 FEM Analysis of the Multi-Wedge Helical Rolling Process for Workholding Bolt

Zbigniew Pater Lublin University of Technology Poland IMS1: Engineering simulation of Bulk forming processes

4 Tuesday, 5 July 2016

C001 14:30 - 14:50 Cross Dies Forging: A New Method to Reduce Forging Force and Price up to 80% thanks FEM

Hamid Mansouri FIDEC(www.fidec.ir) Iran MS9: Modeling and numerical simulation of thixoforming processes


C002 16:30 - 16:50 Thinning behavior of laminated sheets metal in warm deep-drawing process under various grain sizes

Mehran Kadkhodayan

Ferdowsi University of Mashhad

Iran Topic 3: Application to metal or multi-metal forming processes


A001 10:45 - 11:05

Research on optimization design of conformal cooling channels in hot stamping tool based on response surface methodology and multi-objective optimization

Ping Hu

School of Automotive Engineering, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, P.R. China

China

MS10: Design, Optimization, Inverse Methods and Uncertainties in Forming Processes


A002 09:35 - 09:55

Large scale FE simulations of recrystallization and grain growth thanks to a level set approach, illustrations in context of industrial forming processes

Amico Settefrati Transvalor France MS2: Microstructure modeling in forming processes


N101 14:30 - 14:50 Suitability of the electromagnetic ring expansion test to characterize materials under high strain rate deformation

Thaneshan Sapanathan

Sorbonne universités, Université de technologie de Compiègne, CNRS, laboratoire Roberval UMR 7337, Centre de recherche Royallieu, CS 60 319, 60 203 Compiègne cedex

France Topic 3: Application to metal or multi-metal forming processes

19


C002 10:00 - 10:20 Creep age forming of Al-Cu-Li alloy: Application to thick sheet forming of double curvature aircraft panel

Wael Younes IRT Jules Verne France

MS6: From numerical modeling of forming processes down to in-use properties


C002 14:50 - 15:10 Finite element simulation of stretch forming of aluminium-polymer laminate foils used for pharmaceutical packaging

Simon Müller Hochschule Karlsruhe Germany Topic 4: Application to composites, polymers and other materials


C001 16:30 - 17:10 FEM-DEM coupling simulations of the tool wear characteristics in prestressed machining superalloy

Ruitao Peng Xiangtan University China MS4: Advanced modeling of contact interfaces in forming


A001 11:00 - 11:20 Theoretical study on Cold Open Die Forging Process Optimization for Multipass Workability

Ajitkumar Gaikwad Bharat Forge Ltd. India IMS1: Engineering simulation of Bulk forming processes

17 Wednesday, 6 July 2016

C001 10:45 - 11:05 Simulation on microscopic deformation behavior of engine gasket

Yixi Zhao

Shanghai Key Laboratory of Digital Manufacture for Thinwalled Structures, Shanghai Jiao Tong University

China MS2: Microstructure modeling in forming processes


C002 09:55 - 10:15

About the accuracy of the implicit analysis used for determining springback in single point incremental forming process

Valentin Oleksik Lucian Blaga University of Sibiu Romania IMS2: Engineering simulation of sheet forming processes


A001 10:00 - 10:20 FE analysis of thickness size effect of Al layer on deformation behavior during Cu/Al/Cu rolling

Hailiang Yu University of Wollongong Australia IMS1: Engineering simulation of Bulk forming processes


A002 10:00 - 10:20 Class A surface low prediction and correction in stamping applications

Yang Hu FCA Group LLC United States

IMS2: Engineering simulation of sheet forming processes


C001 10:45 - 11:05 Vademecum-GFEM for efficient welding simulation

Diego Canales École Centrale de Nantes France

MS7: Advanced computational methods in forming processes simulation


A002 16:30 - 16:50 Use of Gleeble max-strain unit for study of damage development in hot forging

Hubert Geijselaers Universiteit Twente Netherlands MS3: Defects and damage prediction in forming processes


N101 15:10 - 15:30 A new micro scale FE model of crystalline materials in micro forming

Liang Luo University of Wollongong Australia MS2: Microstructure modeling in forming

20

processes processes


A002 17:10 - 17:50 Biaxial experiments and numerical analyses on damage prediction in metal forming processes

Michael Brünig University BW Munich Germany MS3: Defects and damage prediction in forming processes


A002 16:50 - 17:10 Ductile failure analysis of high strength steel in hot forming process based on micromechanical damage model

Ping Hu Dalian University of Technology China MS3: Defects and damage prediction in forming processes


A002 17:50 - 18:10 Multi Scale Models for Flexure Deformation in Sheet Metal Forming

Edmondo Di Pasquale

SIMTECH - UNIVERSITE DE VALENCIENNES

France MS3: Defects and damage prediction in forming processes


N101 14:50 - 15:10 Introduction to the level-set full field modeling of spheroidization phenomenon in α/β titanium alloys

Marc Bernacki Mines ParisTech CEMEF France MS2: Microstructure modeling in forming processes


A002 11:05 - 11:25 Deformation and fracture of aluminum thin sheets with a PLC model and comparison with DIC3D tomography

Gilles Rousselier MINES ParisTech, PSL Research University



C001 16:30 - 16:50 Effects of Element Formulation on Pipe Bending Simulation

Satoshi Ishikawa IDAJ Co., Ltd. Japan



C001 09:35 - 09:55 A new algorithm for dense ellipsoid packing generation in context of FEM or DEM

Dmitrii Ilin Mines ParisTech Cemef France MS2: Microstructure modeling in forming processes


C001 15:10 - 15:30

Full filed modeling of dynamic recrystallization in a global level set framework, application to 304L stainless steel

Marc Bernacki Mines ParisTech Cemef France MS2: Microstructure modeling in forming processes


A001 10:20 - 10:40 The process parameters effect of ovality in cross wedge rolling for hollow valve without mandrel

Jinping Liu School of Mechanical Engineering, University of Science and Technology Beijing

China IMS1: Engineering simulation of Bulk forming processes


C001 09:55 - 10:15 Simulation of the Dissimilar Joining Process of Aluminum and Steel by Laser Assisted Wetting

Rodrigo Gómez Vázquez

Vienna University of Technology

Austria MS2: Microstructure modeling in forming processes

21


C002 11:45 - 12:05

An innovative approach for the modelling of Arc welding, using a level-set method combined with a mesh refinement technique

Christel Pequet Transvalor S.A. France MS8: Numerical modeling of additive manufacturing


C002 09:15 - 09:35 Recent developments in coupling material modelling with THERCAST® for multicomponent alloy casting

Ali Saad TRANSVALOR S.A. France MS12: Computational Fluid Dynamics in Material Forming Processes


A002 15:30 -15:50

Constitutive models for elastoplasticity from a 4D thermodynamic construction and its applications to the simulation of large deformations

Mingchuan Wang

Laboratoire des Systèmes Mécaniques et d’Ingénierie Simultanée (LASMIS) Université de Technologie de Troyes (UTT) Institut Charles Delaunay (ICD) – CNRS UMR 6297

France MS1: Generalized continua and nonlocal formulations


C001 09:55 - 10:15 Finite element method analysis of surface roughness transfer in micro flexible rolling

Zhengyi Jiang University of Wollongong Australia MS4: Advanced modeling of contact interfaces in forming


A001 11:05 - 11:25 Semi-analytic parameter identification for complex yield functions

Niklas Küsters

TU Dresden, Institute of Manufacturing Technology, Chair of Forming and Machining Processes

Germany



C001 15:30 -15:50 Effects of solid-liquid fraction and semi-solid processing on the microstructure and segregation of Cr-Mo-V steel

Mingyue Sun Institute of Metal Research, Chinese Academy of Sciences, China

China MS9: Modeling and numerical simulation of thixoforming processes


C001 09:15 - 09:35 Development of digital material representation model for porous metallic microstructures

Lukasz Madej AGH University of Science and Technology

Poland MS2: Microstructure modeling in forming processes


A001 11:25 - 11:45 Constrained design of sheet forming processes

Evripides G. Loukaides

University of Cambridge United Kingdom


22


C001 10:00 - 10:40 Nature of the Elastic-Plastic Transition and Its Importance

Robert Wagoner The Ohio State University United States

MS11: Advances in Forming Simulation. A Symposium in Honor of Professor J.L. Chenot


A001 17:50 - 18:10 Virtual forming of a lifting connector at high temperature

Sandrine Thuillier Université Bretagne Sud France IMS1: Engineering simulation of Bulk forming processes


A001 17:10 - 17:30 Improving 3D complex crack propagation in tetrahedral meshes

Fangtao Yang Université de Technologie de compiègne

France



A001 09:35 - 09:55 Principles of Polymer Processing Modelling

Jean-François Agassant

MINES ParisTech/CEMEF France



A002 15:10 - 15:30 Advanced numerical simulation based on a non-local micromorphic model for metal forming processes

Evangelia Diamantopoulou



C002 14:30 - 14:50 Application of the finite element P1 / P1 to the simulation of a MAG welding operation

Jean-Christophe Roux

Univ. Lyon, ENISE, LTDS UMR 5513 CNRS

France MS8: Numerical modeling of additive manufacturing


C001 16:50 - 17:10 The use of geometric scale in the simulation of metal forming by the explicit-dynamic finite element method

Ècio Naves Duarte IFSP Brazil



C001 11:05 - 11:25 Application of P.O.D. and D.E.P.O.D. model reduction methods to semi-thick sheet metal forming

Lionel Fourment MINES ParisTech, PSL Research University, CEMEF

France



A001 11:25 - 11:45 Finite Element Simulation of Selected Bulk Nano-material Processing Techniques

Hans Raj Kandikonda

Dayalbagh Educational Institute India



A001 09:15 - 09:35 Modelling of rolling processes: historical development and perspectives

Pierre Montmitonnet

MINES ParisTech - CEMEF France


23


A002 15:30 -15:50 Multi-objective optimization under uncertainty for sheet metal forming.

Pascal Lafon University of Technology of Troyes

France



A001 14:50 - 15:10 Simulation of the combined process "helical rolling-pressing" in the software package Simufact. Forming

Sergey Lezhnev Rudny industrial institute Kazakhstan MS2: Microstructure modeling in forming processes


C002 11:00 - 11:20 Fatigue life prediction methodology applied to 3D mechanical component

Mohamed Ali Dhifallah

University of Technologie of Troyes

France



A002 11:45 - 12:05 Ductility prediction of substrate-supported metal layers based on rate-independent crystal plasticity theory

Mohamed Ben Bettaieb

LEM3, UMR CNRS 7239 - Arts et Métiers ParisTech

France MS2: Microstructure modeling in forming processes


A002 10:20 - 10:40

Implementing Digital Image Correlation for Determining the Tensile Characteristics of Post-Processed Thin Sheet Metal

Andrew Evans Swansea University United Kingdom



A001 14:30 - 14:50 Sensitivity analysis of the Expansion Process for Alloy UNS N08028

Aitor Navarro TUBACEX INNOVATION Spain



A001 11:05 - 11:25 Influence of forming processes on crash performance of vehicle body components

Giovanni Castiglione

Politecnico di Torino Italy



A002 14:50 - 15:10 Nonlocal constitutive equations of elasto-visco-plasticity fully coupled with damage and temperature

Weijie Liu University of Technology of Troyes, Dalian University of Technology

China MS1: Generalized continua and nonlocal formulations


N101 11:00 - 11:20 Mechanism-based modelling of plastic deformation in magnesium alloys

Dirk Steglich Helmholtz-Zentrum Geesthacht Germany

MS5: Advanced anisotropic constitutive equations for forming processes simulation


N101 15:30 -15:50 Direct micro-to-macro modelling of the cold rolling of pearlitic steel

Marc Seefeldt KULeuven Belgium MS2: Microstructure modeling in forming

24

processes


C002 16:30 - 16:50 Prediction of Forming Limit Diagrams under combined Tension-Bending states

Mohamed Ben Bettaieb

Arts et Métiers ParisTech France MS3: Defects and damage prediction in forming processes


N101 09:35 - 09:55 Tailoring compartmentalized models for metallic alloys forming

Ludovic Charleux SYMME, Université de Savoie Mont Blanc



A002 09:55 - 10:15

OPTIMIZATION OF PROCESS PARAMETERS FOR HYDRO-MECHANICAL MULTI-STAGE DEEP DRAWING OF INCONEL FOR AEROSPACE APPLICATIONS

Ravi Kumar Digavalli

Indian Institute of Technology Delhi

India IMS2: Engineering simulation of sheet forming processes


A002 14:50 - 15:10 Shape Optimisation in Metal Forming Applications Based on the Shape-Manifold Approach

Guenhael Le Quilliec

Laboratoire de Mécanique et Rhéologie - EA 2640

France



A001 14:50 - 15:10 Fast variable stiffness composite cylinder uncertainty analysis by using reanalysis assisted Copula function

Zeng Yang Hunan University China



N101 17:10 - 17:30

Comparison numerical and experiment results of high velocity impact test between Al 6061-T6 and FML by using electromagnetic launcher

Jeong Kim Dept.of Aerospace Engineering, Pusan Nat'l Univ.

Korea, Republic Of

Topic 3: Application to metal or multi-metal forming processes


N101 17:50 - 18:10 A generalized mapping procedure of ductile fracture model between stress and strain spaces

Jeong Whan Yoon Deakin University Australia MS3: Defects and damage prediction in forming processes


N101 14:50 - 15:10 Numerical study of electrohydraulic forming using sheet aluminum alloys

Jeong Kim Department of Aerospace Engineering, Pusan National University

Korea, Republic Of



A002 16:30 - 16:50 Modelling of Microstructure evolution with Dynamic recrystallization in Phase field environment of Martensitic Steel

Jan Hiebeler ThyssenKrupp Steel Europe Germany MS1: Generalized continua and nonlocal formulations

25


N101 11:05 - 11:25 Predictive 3D simulations of Compressive Resin Transfer Molding

Pierre Marquette ESI Group France Topic 4: Application to composites, polymers and other materials


N101 09:15 - 09:35

Constitutive modelling for 05Cr17NiCu4nb alloy during hot deformation and application in turbine blade

Yanhong Xiao Shanghai Second Polytechnic University

China IMS1: Engineering simulation of Bulk forming processes


A002 14:30 - 14:50 Application of a second-gradient model of ductile fracture on a dissimilar metal weld

Rémi Lacroix ESI France, Le Recamier, 70 rue Robert, 69458 Lyon Cedex 06, France



A002 11:25 - 12:05

Experimental observations and numerical simulations of strain rate dependent PLC effects in AA2139 and AA2198 Al-alloy sheet

Sicong Ren MINES ParisTech, PSL Research University



A002 11:00 - 11:20 Numerical optimization of Joule heating process of Usibor® 1500 automotive blanks

Muriel Carin Universite de Bretagne-Sud /LIMATB

France IMS2: Engineering simulation of sheet forming processes


C001 17:10 - 17:30 Advanced Wear Simulation for Bulk Metal Forming Processes

Alexander Chugreev

Institute of Forming Technology and Machines (IFUM), Hannover

Germany MS4: Advanced modeling of contact interfaces in forming


C002 16:50 - 17:10

Numerical determination of the forming limit diagram for thin sheet metal foil from a ductile damage model identified via Micro-Single Point Incremental Forming tests

Ramzi Ben Hmida

FEMTO-ST Institute, UBFC/CNRS-UMR6174/UFC/ENSMM/UTBM, Department of Applied Mechanics, Besançon, France



A001 14:30 - 15:30 Advanced Constitutive and Fracture Models for Sheet Forming Simulation

Jeong Whan Yoon Deakin University Australia



C002 11:05 - 11:25 Smoothed Particle Hydrodynamics applied to the 3D printing of fibre reinforced thermoplastics

Julien Férec Univ. Bretagne-Sud France MS8: Numerical modeling of additive manufacturing

26


A001 17:10 - 17:30 Implementation of a steady-state formulation for the simulation of long product rolling in hot forming conditions

Ugo Ripert

Transvalor S.A., Parc de haute technologie de Sophia-Antipolis, 06255 Mougins Cedex, France

France IMS1: Engineering simulation of Bulk forming processes


C002 15:10 - 15:30 Numerical investigation of blanking for metal polymer sandwich sheets

Florian Gutknecht IUL - TU Dortund Germany Topic 4: Application to composites, polymers and other materials


N101 16:30 - 16:50 Evaluation of ductile failure models in sheet metal forming

Rui Amaral INEGI Portugal MS3: Defects and damage prediction in forming processes


C001 11:45 - 12:05

Simulation of nonlinear benchmarks and sheet metal forming processes using linear and quadratic solid‒shell elements combined with advanced anisotropic behavior models

Peng Wang Arts et Métiers ParisTech France



A002 11:20 - 11:40

Application of Multivariate Adaptive Regression Splines to Sheet Metal Bending Process for Springback Compensation

Rasim Askin Dilan ASELSAN A.S. Turkey IMS2: Engineering simulation of sheet forming processes


A001 11:20 - 11:40 Numerical analysis of bevel gear forming Jaroslaw Bartnicki Lublin University of Technology Poland IMS1: Engineering simulation of Bulk forming processes


C002 11:25 - 11:45

Finite element thermomechanical modeling of deposition of ceramic material during SLM additive manufacturing process

Qiang Chen Cemef, Mines ParisTech, PSL Research University, UMR CNRS 7635

France MS8: Numerical modeling of additive manufacturing


A001 16:30 - 16:50 An efficient augmented RBF-FD method for Navier-Stokes equations in spherical geometry

T. V. S. Sekhar School of Basic Sciences, IIT Bhubaneswar, Bhubaneswar, Odisha

India



A002 14:30 - 14:50

Numerical investigation of manufacturing of hollow pre-products by combining the processes of backward cup extrusion and piercing

Robinson Henry Institute for Metal Forming Technology

Germany


27


C002 14:30 - 14:50 Numerical investigations for simultaneously processing metal and plastic using impact extrusion

Jonas Waelder Institute for Metal Forming Technology

Germany Topic 4: Application to composites, polymers and other materials


C002 09:55 - 10:15 3D simulation model for highly loaded fluids with large spherical particles

Guillaume Francois TRANSVALOR S.A. France MS12: Computational Fluid Dynamics in Material Forming Processes


A002 14:50 - 15:10 Hardening law identification by micro incremental sheet forming: a sensitivity study

Gemala Hapsari DMA Femto-ST/UBFC France



N101 15:10 - 15:30 Material flow analysis in dissimilar Friction Stir Welding of AA2024 and Ti6Al4V butt and lap joints

Gianluca Buffa University of Palermo Italy Topic 3: Application to metal or multi-metal forming processes


C001 14:50 - 15:10 Thermomechanical modelling of steels behaviors at semi-solid state

Khalil Traidi IRT-M2P France MS9: Modeling and numerical simulation of thixoforming processes


C001 11:25 - 11:45 Optimisation of Data Compression of OpenFOAM Simulations Utilising a Newly Developed Approach

Alexander Wohltan HTL-Donaustadt Austria



C002 16:50 - 17:10 Finite element modeling of tube deformation during cold pilgering

Yağiz Azizoğlu Dalarna University Sweden Topic 3: Application to metal or multi-metal forming processes


A001 15:30 -15:50 Significance of the sheet curvature in the prediction of sheet metalt forming limits

Pavel Hora ETH Zurich Switzerland



C001 15:30 -15:50 Crystallization Kinetics Numerical Simulation of Semi-Crystalline Polymer: Application to Thermoforming Process

Mustapha Ziane ESI Group France Topic 4: Application to composites, polymers and other materials


N101 10:00 - 10:20 Hot blanking tools thermo-mechanical loading simulations

Romeu Gomes

Université de Toulouse; CNRS, Mines Albi, INSA, UPS, ISAE-SUPAERO ; Institut Clément Ader; Campus Jarlard, F-81013 Albi, France


28


C001 14:50 - 15:10

Understanding and modeling of void closure mechanisms in hot metal forming processes: a multiscale approach

Pierre-Olivier Bouchard

CEMEF - Mines ParisTech France MS2: Microstructure modeling in forming processes


A001 09:55 - 10:15 DECISION SUPPORT TOOL FOR ANCHORING SYSTEM OPTIMIZATION OF TITANIUM CRANIOFACIAL PROSTHESES

Maria Vittoria Caruso

Department of Mechanical, Energetic and Management Engineering (DIMEG), University of Calabria

Italy



A002 10:45 - 11:05

Ductile fracture – Influence of heterogeneous microstructure on nucleation, growth and coalescence mechanisms


CEMEF - Mines ParisTech France MS3: Defects and damage prediction in forming processes


A001 09:55 - 10:15 Dynamic DOE for porthole die extrusion optimisation

Claudio Ciancio University of Calabria Italy



C002 17:10 - 17:30 Formability Effects of Variable Blank Holder Force on Deep Drawing of Stainless Steel

Numpon Mahayotsanun

Khon Kaen University Thailand Topic 3: Application to metal or multi-metal forming processes


C002 10:45 - 11:05 Simulation of Friction Stir Processing of 304L Stainless Steel

Michael Miles Brigham Young University United States

MS12: Computational Fluid Dynamics in Material Forming Processes


A001 17:10 - 17:30

A comparison of two modeling approaches for the prediction of residual stresses caused by the welding process

Haifa Sallem Univ.Lyon-ENISE-LTDS France



A001 09:15 - 09:35 The evolution of forming process models – from process simulation to model-based control

Ton Van Den Boogaard

University of Twente Netherlands



N101 11:20 - 11:40 On twinning and anisotropy in rolled Mg alloy AZ31 under uniaxial tension

Peidong Wu McMaster University Canada


29


A001 16:30 - 16:50 From manufacturing processes down to in-use structural analyses


CEMEF - Mines ParisTech France



C001 17:10 - 17:30 Hybrid Parallel multigrid preconditioning method for metal forming simulation

Katia Mocellin CEMEF - Mines ParisTech France



A001 16:50 - 17:10

Numerical investigations of multicomponent process lightweight design by lateral extrusion for joining gearwheels

Robert Meissner Institute for Metal Forming Technology, University of Stuttgart

Germany IMS1: Engineering simulation of Bulk forming processes


A002 17:30 - 17:50 A phase-field approach for ductile failure

Erfan Azinpour INEGI, Faculty of Engineering, University of Porto

Portugal MS1: Generalized continua and nonlocal formulations


A002 17:10 - 17:30 Regularisation operators in plasticity and damage at finite deformations

Samuel Forest Mines ParisTech CNRS France MS1: Generalized continua and nonlocal formulations


A001 15:30 -15:50 Multi-criteria optimization strategies for production chains

Jan Kusiak AGH University of Science and Technology

Poland



N101 10:20 - 10:40 FEM Analysis of Punching-Process In Consideration of Micro Die Wear

Takashi Ueda Department of Mechanical and System Engineering, Kyoto Institute of Technology

Japan Topic 3: Application to metal or multi-metal forming processes


N101 16:30 - 16:50 Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes

Gianfranco Palumbo

DMMM - Politecnico di Bari Italy Topic 3: Application to metal or multi-metal forming processes


C002 17:10 - 17:30 Prediction of wrinkling and springback in sheet metal forming

Diogo Neto CEMUC, University of Coimbra Portugal MS3: Defects and damage prediction in forming processes


C002 10:45 - 11:05 Oriented Object Modelization applied to Additive Manufacturing

Alexandre Schneider

URCA/CReSTIC France MS8: Numerical modeling of additive manufacturing

30


A001 15:10 - 15:30 Analysis of micro hydro-mechanical deep drawing using finite element method

Zhengyi Jiang

School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong

Australia MS2: Microstructure modeling in forming processes


N101 16:50 - 17:10 Study on process parameters in incremental roll forming process for manufacture of 3D structural pipes

Do-Sik Shim KITECH (Korea Institute of Industrial Technology)

Korea, Republic Of



A002 11:40 - 12:00 Finite element analysis of non-isothermal warm deep drawing of dual phase steel

Tomaz Pepelnjak

University of Ljubljana, Faculty of Mechanical Engineering, Dept. of Manufacturing Technologies and Systems

Slovenia IMS2: Engineering simulation of sheet forming processes


C002 09:15 - 09:35 Method for Deep Drawing Process Control Using Segmented-Multiple Active Drawbeads

Catalina Maier Dunarea de Jos University of Galati

Romania IMS2: Engineering simulation of sheet forming processes


C001 09:35 - 09:55 Comparative analysis of bonding mechanism in solid state metal working processes

Gianluca Buffa University of Palermo Italy MS4: Advanced modeling of contact interfaces in forming


A001 09:35 - 09:55 Computer system for identification of tool wear model in hot forging

Lukasz Rauch AGH University of Science and Technology

Poland



C001 16:30 - 17:10 NUMERICAL MODELLING OF MICRO-PLASTO-HYDRODYNAMIC LUBRICATION IN COLD ROLLING

Jean-Philippe Ponthot

University of Liège Belgium MS4: Advanced modeling of contact interfaces in forming


C002 11:20 - 11:40

Finite element analysis and experimental study of deformation and interfacial slip in flat-wedge cross-wedge rolling of GH4169 superalloy

Hongyan Gan Institute of Metal Research, Chinese Academy of Sciences

China



N101 17:10 - 17:30

Numerical prediction of ductile failure in the blanking process by means of uncoupled and coupled phenomenological damage models

Cristian Canales University of Liège Belgium MS3: Defects and damage prediction in forming processes


A002 14:30 - 14:50 Rapid Tools compensation in sheet metal stamping process

Lorenzo Iorio Musp Lab Italy

MS10: Design, Optimization, Inverse Methods and Uncertainties in Forming

31

Processes


N101 11:45 - 12:05 Effect of Normal Stresses on the Results of Thermoplastic Moldfilling Simulation

Alexander Bakharev

Autodesk Australia Topic 4: Application to composites, polymers and other materials


A001 15:30 -15:50 Material model for dynamic recrystallization of Mg-8Al-0.5Zn alloy under elevated forming temperature

Jonghun Yoon Hanyang University Korea, Republic Of

MS2: Microstructure modeling in forming processes


A001 11:45 - 12:05 A viscoplastic Pseudo Inverse Approach for Optimal Tool Design in Forging Process

Anoop Ebey Thomas

GRESPI - University of Reims Champagne-Ardenne

France



A001 17:30 - 17:50 Automatic correction of the time step in implicit simulations of thermomechanical

João Martins CEMUC, University of Coimbra Portugal



A002 16:30 - 17:10 Tension-compression asymmetry modelling: strategies for anisotropy parameters identification.

Pedro Barros CEMUC, University of Coimbra Portugal



C001 15:10 - 15:30 Prediction of acoustic foam characteristics by numerical simulation of polyurethane foaming process

Boussad Abbès GRESPI - University of Reims Champagne-Ardenne

France Topic 4: Application to composites, polymers and other materials


A002 17:30 - 17:50 Comparison of two models for strain-path changes

Jisheng Qin Norwegian University of Science and Technology

Norway



A001 17:50 - 18:10 Interaction of various functional elements in thin-walled cups formed by a sheet-bulk metal forming process

Robert Schulte Institute of Manufacturing Technology

Germany



C001 17:30 - 17:50 Process parameter dependent friction model adapted to FE extrusion processes

Christoph Becker IVP ETH Zurich Switzerland MS4: Advanced modeling of contact interfaces in forming

32


C002 14:50 - 15:10 2D and 3D FE models of laser cladding process

Rúben Jardin

University of Liège, ArGEnCo (Architecture, Geology, Environment and Construction) Department, MS2F (Structures, Fluids and Solid Mechanics) Sector

Belgium MS8: Numerical modeling of additive manufacturing


A002 17:50 - 18:10 Anisotropic Constitutive Response of a Rare-earth Magnesium Alloy Sheet: Characterization of Yield Locus Evolution

Armin Abedini Department of Mechanical and Mechatronics Engineering, University of Waterloo

Canada



N101 15:10 - 15:30 Numerical simulation on the electromagnetic forming process of the sheet with the electroplasticity effect

Jeong Kim Pusan National University Korea, Republic Of



A002 17:10 - 17:30 Hydroforming of extruded and fully-annealed 6061 aluminum tubes: experiments and analysis

Yannis Korkolis University of New Hampshire United States



N101 11:25 - 11:45 Development of identification of rheological model adapted for Powder Injection Moulding process

Barriere Thierry intitute femto-st France Topic 4: Application to composites, polymers and other materials


N101 10:45 - 11:05 Determination of the activation energy of silicone rubbers using different kinetic analysis methods

Barriere Thierry intitute femto-st France Topic 4: Application to composites, polymers and other materials


C002 09:35 - 09:55

Influence of Surface-profile and Movement-path of Roller on Thickness Thinning during Multi-pass Deep Drawing Spinning

Qinxiang Xia School of Mechanical and Automotive Engineering, South China University of Technology

China IMS2: Engineering simulation of sheet forming processes


C001 17:10 - 17:30 A Fully-Coupled Approach Combining Plastic Deformation and Liquid Lubrication

Esmeray Üstünyagiz

Technical University of Denmark

Denmark MS4: Advanced modeling of contact interfaces in forming


C002 17:30 - 17:50 Numerical and experimental study on large deformation of thin-walled tube through hydroforging process

Yong Xu Institute of Metal Research, Chinese Academy of Sciences

China MS3: Defects and damage prediction in forming processes

33


C002 11:05 - 11:25

Numerical Simulation of Temperature Distribution and Material Flow During Friction Stir Welding of 2017A Aluminum Alloys

Oussama Mimouni Laboratory of Aircrafts, University of SaadDahlab, Blida 1, Blida, Algeria.

Algeria MS12: Computational Fluid Dynamics in Material Forming Processes


C001 17:30 - 17:50 Heat transfer modeling in asymmetrical sheet rolling of aluminum alloys with ultra high shear strain

Alexander Pesin Nosov Magnitogorsk State Technical University

Russian Federation

MS4: Advanced modeling of contact interfaces in forming


C001 17:50 - 18:10 Modeling of the roll wear and material damage during high-ratio differential speed rolling of aluminum alloy 7075


Russian Federation

MS4: Advanced modeling of contact interfaces in forming


C002 17:30 - 17:50 Finite element modeling of combined process of plate rolling and stamping


Russian Federation



C001 14:50 - 15:10 Mechanical behavior of fiber/matrix interfaces in CFRP sheets subjected to plastic deformation

Ryuta Kamiya Keio University Japan Topic 4: Application to composites, polymers and other materials


A001 11:45 - 12:05

Selection of the best strategy for optimization of manufacturing chain for automotive parts made of multi-phase steels

Maciej Pietrzyk AGH University of Science and Technology

Poland



C001 11:40 - 12:00 Cyclic Plasticity Model with Anisotropy Evolution

Fusahito Yoshida Hiroshima University Japan



A002 09:15 - 09:35 Finite Element Analysis of hot Single Point Incremental forming of hip prostheses

Manel Sbayti

Laboratoire de Génie Mécanique (LGM), Ecole Nationale d’Ingénieurs de Monastir (ENIM), Université de Monastir

Tunisia IMS2: Engineering simulation of sheet forming processes


C001 14:30 - 14:50 Microstructure simulation by FE-CA model of DP600 steel welded by laser processing

Shibo Liu INSA of Rennes France MS2: Microstructure modeling in forming processes


A001 16:50 - 17:10 Residual stresses of a magnesium alloy (AZ31) welded by the friction stir welding processes

Afia Kouadri-Henni INSA of Rennes France


34


C001 17:30 - 17:50

A new shell element taking thickness-stretchability into account for mechanics-based springback compensation system

Hibiki Arashiyama Keio University Japan



C002 16:50 - 17:10 Fracture prediction with a material model based on stress-rate dependency related with non-associated flow rule

Tetsuo Oya Keio University Japan



C002 15:30 -15:50 Homogenization on Multi-Materials’ Elements: Application to Printed Circuit Boards and Warpage Analysis

Manuel Ferreira Araújo

Minho University Portugal Topic 4: Application to composites, polymers and other materials


C001 11:05 - 11:25 Compaction simulation of nano-crystalline metals with molecular dynamics analysis

Ar Khoei Sharif University of Technology Iran MS2: Microstructure modeling in forming processes


C001 11:20 - 11:40 Simulation and Analysis of Double-Sided Incremental Forming Considering Machine Compliance

Jian Cao Northwestern Univ United States



A002 16:50 - 17:10 Finite Similitude in Metal Forming Keith Davey The University of Manchester United Kingdom

MS1: Generalized continua and nonlocal formulations


A001 17:30 - 17:50 Numerical Evaluation and Extrapolation of Creep Curves by "Strain Acceleration and Transition Objective Index"

Hiroyuki Sato Hirosaki University Japan



C001 11:00 - 11:20 Plasticity in thin sheets: the 2D limit of graphene and h-BN

Harley Johnson University of Illinois at Urbana-Champaign

United States



C001 11:45 - 12:05 FEM Analysis of Rapid Cooling Process of low alloy steel for predicting microstructure and its hardness

Kwango Lee Pusan national university Korea, Republic Of



C001 15:30 -15:50 Prediction of mean grain size evolution during the Forging of IN718 Turbine Disc

Haiyan Zhang School of Mechanical Engineering, Ningbo University of Technology


35


C002 17:50 - 18:10 Numerical Simulation of Sheet Metal Formability of TRIP 800 Steel

Christopher Kohar University of Waterloo Canada MS3: Defects and damage prediction in forming processes


C001 17:50 - 18:10 A HIGH-ORDER TIME INTEGRATION TECHNIQUE FOR THE MODELING OF FSW PROCESSES

Narges Dialami CIMNE Spain



N101 11:45 - 12:05

The role of the evolutive elastic properties in the performance of a sheet formed spring applied to multimedia car industry

José Alves Universidade do Minho Portugal Topic 3: Application to metal or multi-metal forming processes


C001 14:30 - 14:50 Integrated model for the forming of glass containers

Bruno Martins INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering

Portugal Topic 4: Application to composites, polymers and other materials


C002 11:25 - 11:45 Sensitivity analysis of size effect on the performance of hydrostatic bearing

Dongju Chen

College of Mechanical Engineering and Applied Electrics Technology, Beijing University of Technology

China MS12: Computational Fluid Dynamics in Material Forming Processes


N101 09:15 - 09:35 Study on the Application of Electron Beam Welding to Automatic Transmission Parts

Sung-Min Lee Kyung Chang Industrial Corporation

Korea, Republic Of



C002 09:35 - 09:55 Multiphase multicomponent modelling of macrosegregation in a 36t steel ingot

Houfa Shen Tsinghua University China MS12: Computational Fluid Dynamics in Material Forming Processes


A002 09:35 - 09:55

Prediction of the Deformation Mechanism including Shear Fracture in the Sheet Metal Forming Process using FEA with the Solid Element

Se-Ho Kim Daegu University Korea, Republic Of



C002 17:10 - 17:30 Induced plastic anisotropy fully coupled with ductile damage under finite strains

Zhenming Yue School of Mechanical and Electrical Engineering, Shandong University at Weihai

China



N101 17:30 - 17:50 Determination of instability of a DP 980 steel sheet under different stress states based on experiment and theoretical

Hong-Wu Song Institute of Metal Research, Chinese Academy of Science

China MS3: Defects and damage prediction in forming processes

36

models


A001 17:50 - 18:10 Evolution of the mechanical properties of 2024 aluminum alloys (heat-treated) used in aeronautics

Ahmed Ben Mohamed

LMAI National Engineering School of Tunis, B.P. W3038, Tunis.

Tunisia



N101 14:30 - 14:50

Evolution of mechanical characteristics for Aluminum alloy Al 7075 (heat - treated) used in aeronautics, during maturation time and precipitation

Amna Znaidi

LMAI National Engineering School of Tunis, B.P. W3038, Tunis, Tunisia El Manar Preparatory Engineering Institute, B.P. 1172, 3018 Tunis, Tunisia

Tunisia Topic 3: Application to metal or multi-metal forming processes


N101 11:25 - 11:45 Behavior of Stainless steel: application of stamping

Sameh Bououni

LMAI National Engineering School of Tunis, B.P. W3038, Tunis, Tunisia El Manar Preparatory Engineering Institute, B.P. 1172, 3018 Tunis, Tunisia

Tunisia Topic 3: Application to metal or multi-metal forming processes


C001 11:25 - 11:45

Effect of austenitization temperature on the microstructure and mechanical properties of B1500HS boron steel in the hot stamping

Huiping Li Shandong University of Science and Technology



A001 17:30 - 17:50 Interpolation of final geometry and result fields in process parameter space

Grzegorz Misiun Universiteit Twente Netherlands IMS1: Engineering simulation of Bulk forming processes


A002 10:45 - 11:05 first steps of recrystallization after low deformation

Amel Samet-Meziou

first steps of recrystallization Tunisia MS2: Microstructure modeling in forming processes


C002 16:30 - 16:50 On Spallation of Oxide Scale in Low Carbon Steel during Bending

Myoung Gyu Lee Korea University Korea, Republic Of


37


A001 16:50 - 17:10 An Element Free Galerkin method for an elastoplastic coupled to damage analysis

Zohra Sendi National Engineers School of Monastir,Laboratory of Mechanical Engineering

Tunisia



N101 11:05 - 11:25 SOLUTIONS FOR SAFE COILING AND COIL HANDLING IN CASE OF THICK AND HIGH STRENGTH STEEL

Lukas Pichler Primetals Technologies Austria GmbH

Italy Topic 3: Application to metal or multi-metal forming processes


A002 11:25 - 11:45 A CRYSTAL PLASTICITY FINITE ELEMENT ANALYSIS OF COMMERCIAL PURITY TITANIUM

Ji Hoon Kim Pusan National University Korea, Republic Of



A001 14:30 - 15:30 Factors Affecting Simulation in Sheet Metal Forming - Advances and Challenges -

Taylan Altan The Ohio State University United States



A002 15:10 - 15:30

A new optimization procedure for the accurate characterization of thermal phase transformation curves based on controlled quenching experiments

Maurice Peterli Institute of Virtual Manufacturing ETH Zurich

Switzerland



A001 15:10 - 15:30

Optimization of the single point incremental forming process for titanium sheets by using response surface

Giraud-Moreau Laurence

Université de Technologie de Troyes

France



C002 17:50 - 18:10 Investigation of a composite ring rolling process by FEM and experiment

Joachim Seitz Institute of metal forming RWTH University

Germany Topic 3: Application to metal or multi-metal forming processes


N101 15:30 -15:50

Numerical modelling of ODS steel tube cold pilgered by HPTR. Focus on experimental measurements and simulation of residual stress.

Denis Sornin CEA, DEN, SRMA, 91191 GIF-SUR-YVETTE,France.



A002 09:15 - 09:35 Full-field simulation of solidification, coarsening and forming of polycrystals

Efim Borukhovich ICAMS, Ruhr-University Bochum

Germany MS2: Microstructure modeling in forming processes


C001 09:15 - 09:35 Modelling of joining processes with application to roll bonding of alloys

Yinan Zuo Institute of Applied Mechanics, RWTH Aachen University

Germany MS4: Advanced modeling of contact interfaces in forming

38


C001 15:10 - 15:30 Study on the manufacturing technology of transmission spline parts using aluminium in the automotive industry

Eun-Young Jung Kyung Chang Industrial Corp. Korea

Korea, Republic Of

MS9: Modeling and numerical simulation of thixoforming processes


N101 14:30 - 14:50 Crystal plasticity extend FEM implementation of thermal-tensile aluminum alloy

Liu Yang Dalian University of Techonology



A001 14:30 - 14:50 Formability Analysis of Aluminum and Magnesium Alloys Sheets by Using Crystal Plasticity Method

Dayong Li Shanghai Jiao Tong University China MS2: Microstructure modeling in forming processes


C002 10:20 - 10:40 Modeling Metadynamic Recrystallization of a Die Steel during Ingot Breakdown Process

Kanwal Chadha École de Technologie Supérieure Montreal

Canada



A001 10:45 - 11:05 Case study on the influence of kinematic hardening to a parameter-free and non-invasive form finding approach

Philipp Landkammer

Chair of Applied Mechanics, FAU Erlangen-Nuremberg

Germany



A002 15:10 - 15:30

Identification of material parameters using indentation test ---study of the intrinsic dimensionality of P-h curves and residual imprints

Liang Meng Université de Technologie de Compiègne

France



N101 09:55 - 10:15 A numerical study of multi-pass design based on Bezier curve in conventional spinning of spherical components

Tian Gan Shanghai Jiao Tong University China Topic 3: Application to metal or multi-metal forming processes


N101 16:50 - 17:10 Prediction of failure limits in fine blanking processes

Thomas Wesner ETH Zurich, Institute of Virtual Manufacturing

Switzerland MS3: Defects and damage prediction in forming processes


N101 11:40 - 12:00 Modelling of twinning induced anisotropic hardening effects in TiCP Grade 4

Christian Raemy Institut of Virtual Manufacturing, ETH Zurich

Switzerland



A002 11:05 - 11:25 A polycrystalline model for stress-strain behaviour of austenitic stainless steel and its application in forming processes

Philippe Pilvin Université de Bretagne-Sud France MS2: Microstructure modeling in forming processes

39


N101 14:50 - 15:10 Simulating Microstructure Evolution of Ultrasonic Welding of Battery Tabs

Hongtao Ding University of Iowa United States



N101 10:45 - 11:05

Effect of dynamic recrystallization on interface bonding during plastic deformation process of same superimposed metals at high temperature

Sun Mingyue Institute of metal research, Chinese academy of sciences

China Topic 3: Application to metal or multi-metal forming processes


N101 17:30 - 17:50

Analysis and Prediction of Plate Deformation due to the Line Heating Process Considering Multiple Heating Lines

Adan Vega Saenz International Maritime University of Panama (UMIP)

Panama Topic 3: Application to metal or multi-metal forming processes

40

Instructions for the Chairpersons

When you arrive at the conference site, please check the e-program (e-Program Booklet) to confirm the

schedule of your session and the room assignment.

Chairpersons should be present in the conference room of their session at least 10 mn before the beginning of

the session.

Each conference room is managed by a technical staff that helps to solve technical problems occurring during

the session and hand out the microphones in the audience during the discussions.

Please check the presence of all the speakers scheduled for your session before the beginning of the session.

You are in charge of keeping scrupulously the schedule so that participants can shift from one room to the

other. You are also in charge of animating the discussion following each lecture. If necessary you can skip or

shorten the discussion.

If a speaker is absent, please do not advance the following talk. You must make the audience wait until the

next presentation, as defined in the initial program, by suggesting a discussion of earlier presentations.

Please note that presentation time is depending in the type of the oral presentation according to:

Lecture time Discussion time

Total time

Plenary lectures 35 mn 10 mn 45 mn

Keynote lectures 25 mn 5 mn 30 mn

Full papers presentation 15 mn 5 mn 20 mn

To leave the required time for discussion, please don’t hesitate to interrupt the oral presentation of any

speaker who exceeds his allowed time.

Please remind to each speaker the simple rule of 1 slide equals 1 minute (suggested in the Instruction for oral

presentation section, in the next page).

41

Instructions for oral presentations

General recommendations:

When you arrive at the conference venue, please check the e-Program Booklet to confirm the schedule of your presentation and the room assignment. On the e-booklet or on the website (Program Tab), you may refer to the List of Oral Presentations ordered by IDs.

Try to be in your presentation room 10 minutes prior to the starting time. Please indicate your presence to the chairperson of your session. You are expected to be present for the entire time of each session.

Please note that presentation time is depending in the type of your oral presentation according to:

Lecture time Discussion time

Total time

Plenary lectures 35 mn 10 mn 45 mn

Keynote lectures 25 mn 5 mn 30 mn

Full papers presentation 15 mn 5 mn 20 mn

A simple rule is to consider 1 slide equals 1 minute of presentation. For example: a full paper presentation

will have around 15 slides (15mn of lecture), a keynote lecture is around 25 slides (25 mn of lecture), and for

plenary lecture is around 35 slides maximum (35 mn of lecture).

Please respect scrupulously your presentation time. If not, the chairperson is asked to interrupt your

presentation at the prescribed time to leave the required time for discussion.

Available Audio/Video Equipment:

A PC with Windows 7, PowerPoint 2010 and Adobe Acrobat (pdf), connected to a video projector is standard in each conference room. Please bring your presentation on a Memory Stick connectable through the USB port of the PC and upload it before the beginning of your session.

You may also use your own laptop computer to make your presentation but, in this case, you need to check your presentation beforehand by connecting your laptop to the video projector of your conference room during the coffee or lunch break prior to your session.

If videos are included within your PowerPoint presentation, please check them in your conference room prior to your session.

If your laptop is Apple (Macintosh), please ensure to bring with you a VGA dongle/adapter compatible with your MAC for external video signal and come to check it in your conference room prior to your session.

Conference room managers will be present in each conference rooms to help you if you have any technical problem.

Please note that VHS Video projection, 35 mm slide projection and overhead projection (projection of transparencies) will not be available in the conference rooms.

42

PROGRAM OF ORAL SESSIONS

WITH ABSTRACTS

Monday_____ p. 43

Tuesday_____ p. 51

Wednesday__ p. 62

43

MONDAY, 4 JULY 2016 7:30 - 8:30 Registration & Welcome Coffee

08:30 - 09:15 Opening Ceremony

09:15 - 09:55 Plenary 1 (Room M500):

Prof. K.J. Bathe, USA

Advances in finite element methods for the simulation of forming processes

We present some recent advances in finite element methods for the analysis of forming processes. These advances pertain to solid and shell finite elements for large strain solutions, contact analyses, improved explicit and implicit time integration schemes, the analysis of fluid-structure interactions, electromagnetic effects, and the development of "overlapping finite elements". The use of overlapping finite elements promises to be an avenue for very effective analysis schemes. Illustrative solutions are given to show the characteristics of the various methods discussed.

Room A001

Chair: L. Fourment

Room A002 Chair: P. Marquette Co-Chair: A. Dereims

Room C001 Chair: E. Massoni

Co-Chair: R. Wagoner

Room C002 Chair: J.L. Duval

Co-Chair: HR Kandikonda

Room N101 Chair: L. Penazzi

10:00 - 10:20 IMS1 - ID20 FE analysis of thickness size effect of Al layer on deformation behavior during Cu/Al/Cu rolling

IMS2 - ID 22 Class A surface low prediction and correction in stamping applications

MS11 Keynote ID50 (30 mn) Nature of the Elastic-Plastic Transition

and Its Importance

Authors: Zhong Chen Hyuk Jong Bong Dayong Li Robert Wagoner

Contact Author Organization: The Ohio State University United States

The so-called “Modulus Effect” is shown to be a universal phenomenon among

metals. This reversible but energy-dissipating mechanism produces

unexpected stress-strain curvature in the nominally elastic region, whereas

bond-stretching is linear. It affects springback and other small-strain

behavior significantly, but is seldom taken into account in such simulations.

The phenomenon is quantified for a diverse range of alloys. It is shown to depend to high degree of accuracy on

only material strength.

MS6-ID9 Creep age forming of Al-Cu-Li alloy:

Application to thick sheet forming of double curvature aircraft panel

TOPIC3-ID126 Hot blanking tools thermo-mechanical

loading simulations

Authors: Hailiang YU; Cheng LU; Kiet Tieu; Huijun LI; Ajit Godbole; Charlie KONG

Contact Author Organization: University of Wollongong, Australia

Authors: Yang Hu; Kaiping Li Contact Author Organization: FCA Group

LLC, United States

Authors: Wael YOUNES; Eliane GIRAUD; Ahmed ZOUARI; Philippe DAL SANTO;

Sjoerd Van Der Veen Contact Author Organization: IRT Jules

Verne, France

Authors: Romeu Gomes; Christine Boher; Luc Penazzi

Contact Author Organization: Université de Toulouse; CNRS, Mines Albi, INSA, UPS, ISAE-SUPAERO ; Institut Clément Ader; Campus Jarlard, F-81013 Albi,

France

Cu/Al/Cu laminate rolling processes was carried out on a multifunction rolling mill. The thickness of Cu sheets was 300 μm. Four kinds of thicknesses of Al sheets were used: 16, 40, 70 and 130 μm. TEM images show that with reduction of the Al layer thickness, the fraction of porous after rolling increases. FEM was used to simulate the Cu/Al/Cu rolling processing. Calculated results reveal the size effect of Al layer thickness on their deformation characteristics.

Class A surface low prediction and correction has been a challenge in sheet metal forming applications. Based on ETA-Dynaform stoning simulation algorithm and full cycle simulation technology developed at FCA, the class A surface low correction is performed on multiple stamping applications. It is concluded that the newly developed method is the ice breaker for class A surface low correction in auto industry.

Creep-age-forming of a thick Al-Cu-Li sheet is studied. An industrial stamping press is used to form a double curvature panel at a reduced scale. This forming, which includes several relaxation steps, is modelled using ABAQUS. A material model describing an elasto-viscoplastic behaviour with anisotropy effect has been identified and implemented in ABAQUS using Fortran subroutine. The numerical model is validated by comparing experiments and numerical results in terms of deformed shapes and an improved forming cycle is suggested.

Press hardened steels like 22MnB5 have high mechanical strength making it possible to achieve weight savings for automotive applications. With these steels, the high thermo-mechanical stresses in blanking operations may damage blade tools. To get better insight into the damage mechanisms, a finite element model is developed to reproduce the thermo-mechanical loadings. The effect of blank’s initial temperature, cutting clearance and thermo-mechanical behaviour of tools are investigated. Experimental hot blanking tests are performed in order to examine simulation relevance.

10:20 - 10:40

IMS1 - ID37 The process parameters effect of ovality in cross wedge

rolling for hollow valve without mandrel

IMS2 - ID 68 Implementing Digital Image Correlation

for Determining the Tensile Characteristics of Post-Processed Thin Sheet Metal

MS6-ID262 Modeling Metadynamic Recrystallization of a Die Steel during Ingot Breakdown Process

TOPIC3-ID145 FEM Analysis of Punching-Process In

Consideration of Micro Die Wear

Authors: Hongchao Ji; Jinping Liu; Baoyu Wang Contact Author Organization: School of Mechanical Engineering, University of Science and Technology

Beijing China

Authors: Andrew Evans; Nick Croft; Amit Das

Contact Author Organization: Swansea University United Kingdom

Authors: Kanwal Chadha; Davood Shahriari; Mohammad Jahazi

Contact Author Organization: École de Technologie Supérieure Montreal Canada

Authors: Takashi Ueda; Takashi Iizuka; Shinichi Enoki

Contact Author Organization: Department of Mechanical and System

Engineering, Kyoto Institute of Technology Japan

44

This paper presents the experimental and numerical results of the effect process parameters on ovality in cross wedge rolling (CWR) for hollow engine valve without mandrel. The experiments and numerical analyses suggest that the following parameters represent the best conditions for CWR of hollow engine valve: 30°-34° for the forming angle(α), 5°-7° for the stretching angle(β), 0.2-0.3mm for the mold void width(L) , and 65%-70% for the area reduction(Ψ).

Creating a finite element analysis model that can accurately model wrinkling is challenging. Therefore creating a model that can introduce imperfections that are comparable to reality can improve the resolution and predictability of the defect. This can be achieved by characterising material properties, implementing effective parameter studies which will eventually produce novel manufacturing techniques to reduce the chance of defects occurring.

Ingot forging processes often consist of several successive deformation steps with high interpass times, during which metadynamic recrystallization (MDRX) occurs. Two-stage isothermal compression tests were carried out at 1150C and 1200C with strain rates of 0.25-2s-1 and interpass times of 5-25s. Based on the experimental results, a material model for MDRX is proposed. The constitutive model was implemented in ForgeNxT1.0® software to simulate the multistage compression. Results from the material model are consistent with the numerical analysis and experimental results.

Order of Punch diameter, sheet thickness, clearance and die wear on punching-process are about 10mm, 1mm, 100μm, and 10μm. So, detailed punching-process analysis is difficult. Furthermore, the analysis that in consideration of die wear is not conducted almost. Therefore, we set mesh size at neighborhood of die edge and punch to 1/10μm. And, we do the analysis in consideration of die wear. From this analysis, we investigated stress, incremental strain and equivalent strain on different types of die wear status.

10:40 - 11:00 Coffee Break

Room A001

Chair: L. Fourment Co-Chair: K. Mocellin

Room A002 Chair: J.L. Duval

Co-Chair: B. Abbes

Room C001 Chair: E. Massoni


Room C002 Chair:

P.O. Bouchard

Room N101 Chair: Y. Korkolis

Co-Chair: H. Badreddine

11:00 - 11:20 IMS1 - ID16

Theoretical study on Cold Open Die Forging Process Optimization for Multipass Workability

IMS2 - ID 91 Numerical optimization of Joule heating

process of Usibor® 1500 automotive blanks

MS11 - ID215 Plasticity in thin sheets: the 2D limit of

graphene and h-BN

MS6-ID65 Fatigue life prediction methodology applied

to 3D mechanical component

MS5 - ID73 Mechanism-based modelling of plastic

deformation in magnesium alloys

Authors: Ajitkumar Gaikwad; Shreyas Kirwai Provat Koley; Dr. G. Balachandran; Dr. Rajkumar Singh

Contact Author Organization: Bharat Forge Ltd. India

Authors: Nathan DEMAZEL; Herve LAURENT; Muriel CARIN; Jeremy COER;

Philippe LE MASSON; Romain CANIVENC; Jerome FAVERO; Stephane GRAVELEAU; Contact Author Organization: Universite

de Bretagne-Sud /LIMATB France

Authors: Harley Johnson Contact Author Organization: University of Illinois at Urbana-Champaign United

States

Authors: Mohamed Ali DHIFALLAH; Carl LABERGERE; Houssem BADREDDINE;

Khemais SAANOUNI Contact Author Organization: University of

Technologie of Troyes France

Authors: Dirk Steglich; Xiaowei Tian; Jacques Besson

Contact Author Organization: Helmholtz-Zentrum Geesthacht Germany

Cold Workability limits strength enhancement of austenitic materials through cold deformation. The intrinsic workability is the material characteristic whereas state-of-stress workability is governed by nature of applied stress, strain rate and geometry of deformation zone. For Cold Open Die Forging (CODF), multipass workability is essential. In this work, FEM tool FORGE-3 is used to optimize CODF on hydraulic press by analysis of stress-strain profiles and use of Latham-Cockroft damage criterion. Study recommends optimized process parameters, die combinations and pass-schedules

Usibor®1500 has very high mechanical strength making it possible to achieve weight savings for automotive applications but needs to be hot formed. To increase productivity, a new process based on Joule effect is developed to heat blanks before hot stamping. Numerical simulation is used to optimize the heating of complex shape blanks. A thermoelectric model using COMSOL Multiphysics® with MATLAB is developed to achieve a homogeneous thermal field. Special care is taken to the contact resistances between electrodes and blanks.

The numerical analysis of plasticity in metal forging and sheet metal forming has been advanced by the many contributions of J.-L. Chenot and co-workers in recent years. Here we present elements of a new plasticity theory for atomically thin, 2D materials such as graphene and hexagonal boron nitride, in which dislocations exist as point defects. We present numerical results showing dislocation nucleation and motion under applied loads, and make comparisons with plastic deformation mechanisms in 3D materials.

This work aims to propose a 3D numerical methodology to predict the fatigue life of mechanical components. Specific coupling functions between fatigue damage and elastoplastic constitutive equations are proposed. Both the theoretical and the numerical aspects are presented and attention is paid to the specific algorithm to calculate the fatigue life under cyclic loading paths. The proposed numerical methodology is tested for the computation on the fatigue life of a 316L steel cylindrical specimen

The plastic deformation of two rolled magnesium sheets under tensile and compressive loading conditions is studied. A phenomenological plasticity model in which the primary deformation mechanisms, slip and (extension) twinning, are treated separately is developed and incorporated in the finite element framework. Deformations caused by these mechanisms are modelled by a symmetric and an asymmetric plastic potential. It is demonstrated that the model predicts the deformation mechanisms during shear loading as well as the macroscopic response of the sheets investigated.

11:20 - 11:40 IMS1 - ID104

Numerical analysis of bevel gear forming

IMS2 - ID 103 Application of Multivariate Adaptive

Regression Splines to Sheet Metal Bending Process for Springback Compensation

MS11-ID211 Simulation and Analysis of Double-Sided

Incremental Forming Considering Machine Compliance

MS6-ID160 Finite element analysis and experimental

study of deformation and interfacial slip in flat-wedge cross-wedge rolling of GH4169

superalloy

MS5 - ID138 On twinning and anisotropy in rolled Mg

alloy AZ31 under uniaxial tension

45

Authors: Jaroslaw Bartnicki Contact Author Organization: Lublin University of

Technology Poland

Authors: RASIM ASKIN DILAN; TUNA BALKAN; BULENT E. PLATIN

Contact Author Organization: ASELSAN A.S. Turkey

Authors: Huaqing Ren; Newell Moser; Jian Cao

Contact Author Organization: Northwestern Univ United States

Authors: Shi-Hong Zhang; Yan Chen; Hongyan Gan; Ming Cheng; Hongwu Song Contact Author Organization: Institute of

Metal Research, Chinese Academy of Sciences China

Authors: Xiaoqian Guo; Adrien Chapuis; Xianbiao Mao; Qing Liu; Peidong Wu

Contact Author Organization: McMaster University Canada

In this paper the numerical analysis of bevel gear forming is presented. Simulations are made by means of FEM using Deform 3D software. Disributions of stress, strain, temperature and Cockroft - Latham damage criterion are presented at various process parameters. Obtained shape of final part and calculated loads during the process course can be usefull for the further practical applications.

An intelligent regression technique is applied for sheet metal bending processes to improve bending performance. This study is a part of another extensive study, automated sheet bending assistance for press brakes. Data related to material properties of sheet metal is collected in an online manner and fed to an intelligent system for determining the most accurate punch displacement without any offline iteration or calibration. The overall system aims to reduce the production time while increasing the performance of press brakes

A new simulation framework of Double-Side Incremental Forming (DSIF) is proposed to capture the influence of the machine compliance. The tool shafts were modeled as elastic bodies, and in order to speed up the simulation via mass scaling, both local damping and velocity boundary conditions were imposed. The results of simulations showed that the tool gap was unexpectedly enlarged because of machine compliance which affected the tool contact with the sheet, thickness distribution, and geometric accuracy in DSIF.

The flat-wedge cross-wedge rolling (CWR) deformation and interfacial slip of GH4169 superalloy were investigated experimentally and numerically using a coupled thermo-mechanical finite element analysis (FEA) model. The simulation and experimental flat-wedge CWR forces showed well agreements except near the end of the stretching zone. The simulation analysis showed that the temperature distribution in the work piece was non-uniform during the flat-wedge CWR. The experimentally measured tool-workpiece interfacial slip was in good agreement with that predicted by the FEA model

The mechanical anisotropy of hot-rolled Mg alloy AZ31 is investigated both experimentally and numerically. First, five different specimen orientations with tilt angles between the normal direction and longitudinal specimen axis are used to experimentally study the mechanical anisotropy under uniaxial tension. Then, the Elastic Visco-Plastic Self-Consistent (EVPSC) model is applied to simulate the uniaxial tension tests. It is demonstrated that the EVPSC model is able to reproduce the anisotropic behavior observed in rolled AZ31 plate under uniaxial tension.

11:40 - 12:00 IMS2 - ID 155

Finite element analysis of non-isothermal warm deep drawing of dual phase steel

MS11-ID201 Cyclic Plasticity Model with Anisotropy

Evolution

MS5 - ID267 Modelling of twinning induced

anisotropic hardening effects in TiCP Grade 4

Authors: Tomaz Pepelnjak; Bilgin Kaftanoglu

Contact Author Organization: University of Ljubljana, Faculty of Mechanical

Engineering, Dept. of Manufacturing Technologies and Systems Slovenia

Authors: Fusahito Yoshida; Hiroshi Hamasaki; Takeshi Uemori

Contact Author Organization: Hiroshima University Japan

Authors: Christian Raemy; Niko Manopulo; Pavel Hora

Contact Author Organization: Institut of Virtual Manufacturing, ETH Zurich

Switzerland

Improving the formability of the material is an important issue in the deep drawing process. Heating the material above its recrystallization temperature drastically increases formability but it results in the loss of its mechanical properties. To improve the drawing ratio, only the heating of the flange region in the warm range is studied on DP600 sheet steel by numerical simulation. Thermo-elastic-plastic FEM analysis of deep drawing at several drawing ratios is performed and compared with experimental results.

A framework for a combined anisotropic-kinematic hardening model of large-strain cyclic plasticity is presented, and the details of modeling which is based on the Yoshida–Uemori model are described. The shape of the yield surface and that of the bounding surface are assumed in the model to change simultaneously. The model was validated by comparing the calculated results of stress–strain responses with experimental data of an aluminum sheet and cyclic straining in three sheet directions on an advanced high-strength steel sheet.

The numerical simulation of forming processes involving titanium is challenging. Besides anisotropy, it exhibits strong tension compression asymmetry and, given the direction dependent twinning of the hexagonal lattice, substantial anisotropic hardening. The present work proposes an extension to the CPB06 yield function, in order to capture the evolution of the yield surface shape in dependence of twinning induced plastic deformation. A non-associated flow rule is introduced to correct the flow direction. The model is validated with a cup drawing test.

12:00 - 13:30 Lunch

46

13:45 - 14:25 Plenary Lecture 2 (Room M500):

Dr Y. Urushiyama, Japan

Room A001 Chair: E. Massoni


Room A002 Chair:

P. Breitkopf Co-Chair: Kusiak

Room C001 Chair:

M. Seefeldt

Room C002 Chair: O. Ghouati

Co-Chair: H.R. Kandikonda

Room N101 Chair: F. Barlat Co-Chair: J. Kim

14:30 - 14:50

MS11- 2 Keynotes:

ID251 (30mn) Factors Affecting Simulation in Sheet Metal Forming -

Advances and Challenges

Authors: Taylan Altan; Ali Fallahiarezoodar Contact Author Organization: The Ohio State University

United States

This paper discusses how to: (a) evaluate formability, (b) estimate the flow stress, (c) evaluate the performance of

lubricants, (d) prepare input data for reliable process simulation, and finally, (e) how to use simulation to

reduce scrap rate and increased productivity in forming AHSS and ultra high strength Al alloys

---------------------------------------------------------------------------

ID94 (30mn) Advanced Constitutive and Fracture Models for Sheet

Forming Simulation

Authors: Jeong Whan Yoon; Thomas B Stoughton Contact Author Organization: Deakin University Australia

Advanced constitutive modeling based on non-associated

plasticity is presented to enable greater flexibility to capture the anisotropic yield and flow behavior of metals

using less complex functions than those needed under associated flow. Also, a new type of forming limit diagram based on the polar effective plastic strain (PEPS) fracture

disgram is presented to cover nonlinear strain path in sheet forming.

MS10 - ID162 Rapid Tools compensation in sheet metal

stamping process

MS2 - ID203 Microstructure simulation by FE-CA

model of DP600 steel welded by laser processing

TOPIC4-ID111 Numerical investigations for simultaneously

processing metal and plastic using impact extrusion

TOPIC3-ID8 Suitability of the electromagnetic ring

expansion test to characterize materials under high strain rate deformation

Authors: Lorenzo Iorio; Matteo Strano; Michele Monno

Contact Author Organization: Musp Lab Italy

Authors: Shibo Liu Afia Kouadri-Henni Contact Author Organization: INSA of

Rennes France

Authors: Jonas Waelder; Jochen Wellekoetter; Alexander Felde; Mathias

Liewald; Christian Bonten Contact Author Organization: Institute for

Metal Forming Technology Germany

Authors: Kang Yang; Geoff Taber; Thaneshan Sapanathan; Anupam Vivek;

Glenn S Daehn; Rija Nirina; Raoelison Nicolas Buiron; Mohamed Rachik

Contact Author Organization: Sorbonne universités, Université de technologie de Compiègne, CNRS, laboratoire Roberval

UMR 7337, Centre de recherche Royallieu, CS 60 319, 60 203 Compiègne cedex

France

The sudden growth of additive manufacturing is generating a wave of innovation in traditional manufacturing technologies. In this paper, we propose a rapid tooling compensation method based on the explicit FEM simulation coupled to a geometrical optimization algorithm for designing the stamping tools. The compensation algorithm has been improved by considering the deviations between the stamped and designed components. The FEM model validation has been performed by comparing the results of a DOE done at different values of press force.

FE-CA model is built to simulate the microstructure of DP600 steel during solidification. A moving conical heat source is applied to achieve temperature field during laser welding. The linear interpolation method is used to transfer node temperature of Abaqus to cell temperature of CA. With the consideration of temperature and solute concentration, the solidification is simulated. The model gives equiaxe and column dendrite grain growth. Competitive growth between different dendrite arms is presented. Simulation result shows good agreement with experimental.

Combining different materials for producing high performance parts opens a broad range of high functionality and applicability. Scope of this project is the investigation of a new method to process metal and plastic within one single production step using impact extrusion. In this study, first FEM results of the combined impact extrusion of metal and plastic will be presented. The aim of the numerical investigation is to achieve a plastic flow of the polymer material during the metal forming process.

High strain rate deformation in an electromagnetic pulse technology could play an important role in metal forming and joining processes. Based on this technology, ring expansion test has a good potential for the material characterization at high strain rate. In this work, coupled 3D mechanical-electromagnetic simulations were performed to investigate the suitability of this technique to characterize material parameters. Preliminary results show the development of biaxial stresses while the proposed shilling mechanism eliminates the axial stress component on the rings.

14:50 - 15:10

MS10 - ID78 Shape Optimisation in Metal Forming

Applications Based on the Shape-Manifold Approach

MS2 - ID127 Understanding and modeling of void

closure mechanisms in hot metal forming processes: a multiscale approach

TOPIC4-ID12 Finite element simulation of stretch forming of aluminium-polymer laminate foils used for

pharmaceutical packaging

TOPIC3-ID82 Numerical study of electrohydraulic forming using sheet aluminum alloys

Authors: Guenhael Le Quilliec; Balaji Raghavan; Piotr Breitkopf

Contact Author Organization: Laboratoire de Mécanique et Rhéologie - EA 2640

France

Authors: Pierre-Olivier Bouchard; Abdelouahed Chbihi; Marc Bernacki;

Daniel Pino Munoz Contact Author Organization: CEMEF -

Mines ParisTech France

Authors: Simon Müller; Sabine Weygand Contact Author Organization: Hochschule

Karlsruhe Germany

Authors: Min-A Woo; Hak-Gon Noh; Hyeong-Gyu; Park Hong-Kyo; Park Jeong

Kim Contact Author Organization: Department of Aerospace Engineering, Pusan National

University Korea, Republic Of

47

The concept of shape-manifold is applied here on the optimization of a deep drawn blank considering parametrized tool geometries. By adopting this concept, the closed realistic post-springback shape of the blank to a given ideal target shape is obtained. The global approach is fully automated, from the generation of the tool geometries, to the identification of the optimized design parameters. This approach was successfully applied either on simple 2D and complex 3D industrial test cases.

The presence of voids after casting processes of large metal workpieces require the use of adapted hot metal forming processes to deliver sound products. Yet, there is at present a lack of knowledge regarding void closure mechanisms and there is no reliable model that can accurately predict void closure. A new model accounting for both stress triaxiality ratio and Lode angle is proposed. Based on an advanced multiscale approach, this model also accounts for voids shape and orientation.

Pharmaceutical high barrier blister packages are manufactured from aluminium-polymer laminate foils (e.g. consisting of PA-Al-PVC layers). By a cold stretch forming process cavities are formed. The aim of this work is to determine a homogenized elastic-plastic description of the laminate by micromechanics. Therefore, the unit cell technique is used where the layers are mapped in a representative volume element. The obtained homogenized material model is applied to simulate the stretch forming to gain more insight into the forming process.

Electrohydraulic forming (EHF) process is one of the high-speed forming process which uses the high voltage discharge in water. Shock wave resulted from the discharge is propagated to the blank and it makes the blank deformed. In this study, a finite element model of EHF process was developed using Arbitrary Lagrange-Eulerian (ALE) Multi Material formulation in LS-DYNA. The results show that the numerical model for EHF was successfully made and that bouncing effect didn’t affect the formability of the blank.

15:10 - 15:30

MS10 - ID264 Identification of material parameters using

indentation test ---study of the intrinsic dimensionality of P-h curves and residual

imprints

MS2 - ID36 Full filed modeling of dynamic

recrystallization in a global level set framework, application to 304L stainless

steel

TOPIC4-ID99 Numerical investigation of blanking for metal

polymer sandwich sheets

TOPIC3-ID179 Numerical simulation on the

electromagnetic forming process of the sheet with the electroplasticity effect

Authors: Liang Meng Piotr Breitkopf Guenhael Le Quilliec

Contact Author Organization: Université de Technologie de Compiègne France

Authors: Romain Boulais-Sinou Benjamin Scholtes; Daniel Pino Muñoz; Charbel

Moussa; Isabelle Poitrault; Isabelle Bobin; Aurore Montouchet; Marc Bernacki Contact Author Organization: Mines

ParisTech Cemef France

Authors: Florian Gutknecht; David Übelacker; Till Clausmeyer; Peter Groche; A. Erman

Tekkaya Contact Author Organization: IUL - TU

Dortund Germany

Authors: Hyeong Gyu; Park Hong Kyo; Kim Beom Soo; Kang Jeong Kim

Contact Author Organization: Pusan National University Korea, Republic Of

Instrumented indentation test has been used to determine material parameters with two different sources of information. Based on the recent shape-manifold identification approach, we formally demonstrate, in the scope of manifold, the non-uniqueness of the solution to the inverse problem based on load-displacement curves. The identifiability is also compared for P-h curve and imprint mapping, highlighting the manifold's ability to estimate the maximum number of independent material parameters that may be determined with a given experimental setup.

A new full field numerical approach for the simulation of dynamic and post-dynamic recrystallization will be detailed. A level set framework is employed to link the crystal plasticity finite element method with the modeling of recrystallization. Plasticity is calculated through the activation of slip systems and provides predictions for both SSDs and GNDs densities. These predictions control the activation and kinetics of recrystallization. All developments are validated for 304L stainless steel and implemented in the Digi-mu software for industrial purpose.

A finite-element simulation of the blanking process is used to predict the process forces and the geometry of the cutting surface. A fully-coupled elasto-plastic-damage model considers the influence of shear and compression-dominated stress states on the propagation of damage. This approach is advantageous for the analysis of different blanking processes and enables the prediction of the core compression, which provides valuable information for the development of analytical models.

In metal forming process, application of electric pulses changes the material property owing to electroplastic effect. With this effect, the electromagnetic forming (EMF) process can be a more efficient metal forming process. In this study, EMF process on Al5052 alloy under intense electric current pulse was numerically simulated by finite element method. The numerical simulation results are compared with experimental results. It is shown that the electroplastic effect can successfully reduce the strength and the EMF force.

15:30 -15:50 MS11-ID122

Significance of the sheet curvature in the prediction of sheet metalt forming limits

MS10 - ID63 Multi-objective optimization under

uncertainty for sheet metal forming.

MS2 - ID218 Prediction of mean grain size evolution

during the Forging of IN718 Turbine Disc

TOPIC4-ID209 Homogenization on Multi-Materials’

Elements: Application to Printed Circuit Boards and Warpage Analysis

TOPIC3-ID256 Numerical modelling of ODS steel tube

cold pilgered by HPTR. Focus on experimental measurements and

simulation of residual stress.

Authors: Pavel Hora; Maysam Gorji; Bekim Berisha

Contact Author Organization: ETH Zurich Switzerland

Authors: Pascal LAFON; Pierre Antoine ADRAGNA; Von Dim NGUYEN

Contact Author Organization: University of Technology of Troyes France

Authors: Haiyan Zhang; Shihong Zhang; Ming Cheng

Contact Author Organization: School of Mechanical Engineering, Ningbo University of Technology China

Authors: Manuel Ferreira Araújo; Luís C.M. Alves; Paulo Silva; Pedro Delgado

Contact Author Organization: Minho University Portugal

Authors: Denis Sornin; Edgar Alejandro Pachòn; Esteban Vanegaz-Marquez;

Roland Logé; Katia Mocellin Contact Author Organization: CEA, DEN, SRMA, 91191 GIF-SUR-YVETTE,France.

France

48

It is well known, that under conditions like hamming or in cases of deep drawing with small radii fracture limits arise, which do not correspond to the classical FLC. In the talk a generalized FLC-R concept will be presented, which includes the influence of strain gradients induced by bending into the consideration. The corresponding limits will be experimentally evaluated identifying the rupture strains on the “classical” Nakajima specimens.The new theoretical approach will be applied to special Al-multilayer sheet materials.

Aleatory uncertainties in material properties, blank thickness and friction condition are inherent and irreducible variabilities in sheet metal forming. Optimal design configurations, which are obtained by conventional design optimization methods, are not always able to meet the desired targets due to the effect of uncertainties. This paper proposes a multi-objective robust design optimization applied in order to tackle this problem. Results obtained on a U shape draw begin benchmark show that springback effect can be control by optimizing process parameters.

IN718 alloy is an important material used for aero-engine turbine disk. The microstructure of the alloy is sensitive to the hot deformation parameters. Generally, the sizes of turbine discs are large, and the shapes are complex. Therefore, the defects of coarse grain and duplex grain often appear in the forgings. In this paper, the evolution of microstructure during the cogging, upsetting and hot die forging in the manufacture of IN718 turbine disc were predicted.

Multi-material domains are often found in industrial applications. Modelling them can be computationally very expensive due to meshing requirements. The finite element properties comprising different materials are hardly accurate. In this work, a new homogenization method that simplifies the computation of the homogenized Young modulus, Poisson ratio and thermal expansion coefficient is proposed, and applied to composite-like material on a printed circuit board. The results show a good properties correspondence between the homogenized domain and the real geometry simulation

Oxides Dispersed strengthened (ODS) stainless steels are foreseen for fuel cladding tubes in the coming generation of fission sodium cooled nuclear reactors. Classically those steels are cold formed as cladding tubes by a sequence of milling passes with intermediate heat treatments. This study focuses on numerical simulation of tube cold pilgering by High Precision Tube Rolling (HPTR). A 3D Finite Element Method mechanical analysis of the HPTR process is proposed. Results are confronted to experiments regarding geometry and residual stress.


Room A001

Chair: K. Mocellin Co-Chair: L. Fourment

Room A002 Chair: P. Wu

Co-Chair: D. Steglich

Room C001 Chair:

P. Montmitonnet

Room C002 Chair:

J. Cesar de Sa Co-Chair:

C. Labergere

Room N101 Chair: M. Megahed

Co-Chair: F. Gagliardi

16:30 - 16:50 IMS1 - ID3

FEM Analysis of the Multi-Wedge Helical Rolling Process for Workholding Bolt MS5 Keynote

ID171 (30 mn)

Tension-compression asymmetry modelling: strategies for anisotropy

parameters identification.

Authors: Pedro Barros; José Alves; Marta Oliveira; Luís Menezes

Contact Author Organization: CEMUC, University of Coimbra Portugal

This work presents details concerning the strategies and algorithms adopted in the

fully implicit FE solver DD3IMP to model the orthotropic behavior of metallic sheets and the procedure for anisotropy parameters identification. The work is focused on the

yield criterion developed by Cazacu, Plunkett and Barlat, 2006, which accounts for both tension–compression asymmetry

and orthotropic plastic behavior. Some reference problems are analyzed with this

solver, highlighting the influence of the tension-compression asymmetry.

MS4 Keynote ID159 (30mn)

NUMERICAL MODELLING OF MICRO-

PLASTO-HYDRODYNAMIC LUBRICATION IN COLD ROLLING

Authors: Yves Carretta; Romain Boman; Nicolas Legrand; Trong Son Cao; Quand

Tien Ngo; Maxime Laugier; Jean-Philippe Ponthot

Contact Author Organization: University of Liège Belgium

This paper presents recent investigations

in the numerical modeling of liquid lubricant escapes from surface pockets in sheet metal forming. This phenomenon,

called Micro-Plasto-Hydrodynamic (MPH) lubrication, was observed by several

authors in plane strip drawing. The first part of this paper presents a strip drawing

model able to predict the occurrence of MPH lubrication and the amount of

lubricant leaving the cavities. The second part of the paper describes the

implementation of the MPH model in a cold rolling software.

MS3-ID75 Prediction of Forming Limit Diagrams under

combined Tension-Bending states

TOPIC3-ID146 Biomedical Titanium alloy prostheses

manufacturing by means of Superplastic and Incremental Forming processes

Authors: Zbigniew Pater

Contact Author Organization: Lublin University of Technology Poland

Authors: Honoré LAGAZA; Mohamed BEN BETTAIEB; Farid ABED-MERAIM; Xavier

LEMOINE Contact Author Organization: Arts et Métiers

ParisTech France

Authors: Antonio Piccininni; Francesco Gagliardi; Pasquale Guglielmi; Luigi De Napoli; Giuseppina Ambrogio; Donato

Sorgente; Gianfranco Palumbo; Contact Author Organization: DMMM -

Politecnico di Bari Italy

This paper presents the results of a numerical analysis of the helical rolling process for producing 25 mm diameter workholding bolt using multi-wedge helical tools. The numerical modelling was performed by FEM using the commercial Simufact Forming v. 12 simulation software. The modelling was performed in a three-dimensional state of strain and included a full thermal analysis. As a result, the changes in workpiece shape as well as the distributions of strains, temperature, damage, loads and torque were determined.

A number of parts involved in the automotive industry are made of bent thin sheets. Unfortunately, classical predictions based on Forming Limit Diagrams are not applicable in case of heterogeneous strain distribution over the thickness of the metal sheet. This limitation generally leads to underestimating the formability limits. The aim of the present contribution is to propose an extended Marciniak‒Kuczynski approach that is able to take into account the effects of bending on formability.

In this work the manufacturing of patient-oriented titanium prostheses using innovative processes, like superplastic forming (SPF) and single point incremental forming (SPIF) has been investigated. Numerical simulations were carried out to: (i) define the process parameters for the SPF implementing suitable material constants evaluated through a preliminary material characterization; (ii) evaluate the temperature distribution in the SPIF due to the adoption of high speed. Finally, numerical results were experimentally validated and the reliability of numerical models checked.

16:50 - 17:10

IMS1 - ID141 Numerical investigations of multicomponent process

lightweight design by lateral extrusion for joining gearwheels

MS3-ID93 Numerical determination of the forming limit

diagram for thin sheet metal foil from a ductile damage model identified via Micro-

Single Point Incremental Forming tests

TOPIC3-ID153 Study on process parameters in

incremental roll forming process for manufacture of 3D structural pipes

49

Authors: Robert Meissner: Mathias Liewald

Contact Author Organization: Institute for Metal Forming Technology, University of Stuttgart Germany

Authors: Ramzi Ben Hmida; Gemala Hapsari; Fabrice Richard; Sébastien Thibaud; Pierrick

Malécot Contact Author Organization: FEMTO-ST

Institute, UBFC/CNRS-UMR6174/UFC/ENSMM/UTBM, Department

of Applied Mechanics, Besançon, France France

Authors: Do-Sik SHIM; Jong-Youn Son; Hi-Seak Yoon

Contact Author Organization: KITECH (Korea Institute of Industrial Technology)

Korea, Republic Of

Multicomponent process for production of high performance gearwheels combines both high power density and high lightweight potential. Whitin this paper, the focus is on manufacturing of an assembled gearwheel using cold forging and simultaneously joining of the gearwheel body and a gear ring. In this study, FEA results regarding the joining of two different materials for assembled gearwheels will be presented. The aim of the numerical investigation is to achieve a robust forging process and define appropriate tool parameters.

In this paper, the micro-formability of thin sheets is investigated by a numerical approach. A coupled elastic-plastic-damage model is used to predict forming limit diagram according to the micro-Marciniak tests. The identification of the ductile damage model is first performed from micro-single point incremental forming tests using inverse finite element method. Finally, both the micro-forming limit curve and the micro-forming limit stress curve are plotted.

The newly proposed incremental roll forming process for the manufacture of 3D structural pipes employs several pairs of roll assemblies in the rolling direction. All the rolls can be positioned in any direction, so that it is possible to form various shapes of the structural pipe members through twisting, two or three dimensional bending, and cross-section forming. In this paper, the key process parameters are designed for improvement of the product quality by using FE simulations.

17:10 - 17:30

IMS1 - ID97 Implementation of a steady-state formulation for the

simulation of long product rolling in hot forming conditions

MS5 - ID180 Hydroforming of extruded and fully-

annealed 6061 aluminum tubes: experiments and analysis

MS4 - ID92 Advanced Wear Simulation for Bulk Metal

Forming Processes

MS3-ID148 Prediction of wrinkling and springback in

sheet metal forming

TOPIC3-ID80 Comparison numerical and experiment

results of high velocity impact test between Al 6061-T6 and FML by using

electromagnetic launcher

Authors: ugo ripert: etienne perchat: lionel fourment:

Contact Author Organization: Transvalor S.A., Parc de haute technologie de Sophia-Antipolis, 06255 Mougins

Cedex, France France

Authors: Melina Kronis: Vojtech Kubec: Yannis Korkolis

Contact Author Organization: University of New Hampshire United States

Authors: Bernd-Arno Behrens: Anas Bouguecha: Milan Vucetic: Alexander

Chugreev Contact Author Organization: Institute of

Forming Technology and Machines (IFUM), Hannover Germany

Authors: Diogo Neto; Marta Oliveira; José Alves; Abel Santos; Luís Menezes


Authors: Hong-Kyo Kim; Hak-Gon Noh Eu-Tteum; Park Beom-Soo; Kang Jeong Kim

Contact Author Organization: Dept.of Aerospace Engineering, Pusan Nat'l Univ.

Korea, Republic Of

The 3D finite element simulations of long product rolling can be significantly sped-up by focusing only on the steady state. A staggered fixed-point algorithm has been introduced to compute alternatively the mechanical fields on a prescribed domain and the geometry correction. This paper focuses on the resolution of the geometry correction for unstructured 3D meshes, parallel computing, and complex shapes with strong contact constraints. Accuracy, robustness and efficiency are compared to conventional incremental formulations on actual metal forming problems.

The hydroforming of extruded and fully-annealed 6061 aluminum tubes is studied using a combination of experiments and analysis. The experiments were performed in a custom tube-hydroforming facility using extruded Al-6061-O tubes of 60 mm outside diameter and 3 mm thickness. The tubes failed by bursting. The experiments were simulated in Abaqus/Standard using solid elements. The von Mises model failed to capture burst, so that the isotropic Hosford 1972 and anisotropic Barlat et al. Yld2004-3D non-quadratic yield functions are considered next.

In the recent decades the finite element method has become an essential tool for the cost-efficient virtual process design in the metal forming sector in order to counter the constantly increasing quality standards as well as intensified international competition. The main objective of this work is a modelling algorithm, which allows predicting die wear with respect to a geometry update during the forming simulation. Changes in the contact area caused by geometry update lead to the different die wear distribution.

The finite element simulation is currently a powerful tool to optimize forming processes in order to produce defect-free products. Wrinkling and springback are the major geometrical defects in sheet metal forming. The prediction of such defects requires accurate numerical models, namely the mechanical behavior of the sheet and the frictional contact conditions between the sheet and the tools. This study presents the experimental and numerical analysis of geometrical defects arising in the sheet metal forming of a warping geometry.

This paper deals with 3-D composite impact numerical analysis process by using LS-DYNA and its experiment. And its experiment is conducted by using electromagnetic launcher which is propelled by electromagnetic force and has space advantage than air pressure force. The impact moment is recorded by high speed camera which is FASTCAM SA-X2. And confirm the impact resistance properties by calculating absorbed projectile’s kinetic energy, blank’s deformation strain energy and shape from both approaches. The impact velocity range is ~500m/s.

17:30 - 17:50 IMS1 - ID244

Interpolation of final geometry and result fields in process parameter space

MS5 - ID173 Comparison of two models for strain-path

changes

MS4 - ID192 Heat transfer modeling in asymmetrical

sheet rolling of aluminum alloys with ultra high shear strain

MS3-ID190 Numerical and experimental study on large

deformation of thin-walled tube through hydroforging process

TOPIC3-ID272 Analysis and Prediction of Plate

Deformation due to the Line Heating Process Considering Multiple Heating

Lines

50

Authors: Grzegorz Misiun; Chao Wang; Hubert Geijselaers; Ton van den Boogaard

Contact Author Organization: Universiteit Twente Netherlands

Authors: Jisheng Qin; Bjørn Holmedal; Odd Sture Hopperstad

Contact Author Organization: Norwegian University of Science and Technology

Norway

Authors: Alexander Pesin; Denis Pustovoytov

Contact Author Organization: Nosov Magnitogorsk State Technical University

Russian Federation

Authors: Yong Xu; Yan Ma; Shihong Zhang Contact Author Organization: Institute of

Metal Research, Chinese Academy of Sciences China

Authors: Adan Vega Saenz Contact Author Organization:

International Maritime University of Panama (UMIP) Panama

Different routes to produce a product in a bulk forming process can be described by a limited set of process parameters. The parameters determine the final geometry as well as the distribution of state variables. Ring rolling has been simulated using different parameter settings. The final state variable fields have been subjected to Principal Component Analysis. Interpolation of principal component amplitudes in process parameter space gives an excellent representation of the fields and is useful as metamodel of the process.

Two advanced models for stress transients after strain-path changes have recently been proposed for cases of steel and aluminum, respectively. The current work is a comparison of predicted material behaviors based on these two models. It is concluded that both models can be extended to cover each other’s materials. However, there are still various limitations related to each model, such as permanent orthogonal softening, transient r-value evolution and correct predictions of more complex double strain-path changes.

Asymmetric sheet rolling is a method of severe plastic deformation (SPD) for production of aluminium alloys with UFG structure. Prediction of sheet temperature during SPD is important. The temperature of sheet is changed due to the conversion of mechanical work into heat through sliding on contact surfaces and high shear strain. Paper presents the results of FEM simulation of the effect of contact friction, rolling speed and rolls speed ratio on the heating of aluminium sheets during asymmetric rolling.

In order to form the thin-walled hollow parts with large deformation, a technology has been developed in present study by combination of hydroforming with moving dies similar to forging process, known as a hydroforging technology. Based on the finite elements simulation, the process of hydroforging was investigated to avoid thinning, wrinkling, and bursting due to unreasonable selection of the internal pressure. The suitable loading path was discussed. The results from simulation keep a reasonable agreement with that from experiment.

A new method that can improve the precision in predicting plate deformation during the plate forming by line heating is presented. A Finite Element Analysis has been performed. The proposed method consider the influence of multiple heating lines: overlapped, parallel and crossed heating lines. It was found that the inherent deformation produced by multiple heating lines applied close to each other is influenced by residual stresses produced by previous heating lines. New relationship are proposed to consider such influences.

17:50 - 18:10 IMS1 - ID52

Virtual forming of a lifting connector at high temperature

MS5 - ID177 Anisotropic Constitutive Response of a

Rare-earth Magnesium Alloy Sheet: Characterization of Yield Locus Evolution

MS4 - ID193 Modeling of the roll wear and material damage during high-ratio differential speed rolling of aluminum alloy 7075

MS3-ID221 Numerical Simulation of Sheet Metal

Formability of TRIP 800 Steel

Authors: Julien Cochet; Sandrine Thuillier; Pierre-Yves Manach; Nicolas Decultot

Contact Author Organization: Université Bretagne Sud France

Authors: Armin Abedini; Cliff Butcher; Michael Worswick; Bruce Williams; Timothy

Skszek; Toshihiko Kuwabara Contact Author Organization: Department

of Mechanical and Mechatronics Engineering, University of Waterloo Canada

Authors: Alexander Pesin; Denis Pustovoytov; Natalya Lokotunina


Russian Federation

Authors: Christopher Kohar; Daniel Connolly; Raja Mishra; Kaan Inal

Contact Author Organization: University of Waterloo Canada

Closed-die forging and ram bending of a sling shackle was simulated in 3D using Abaqus software. The predictions were validated against experimental data obtained over 80 shackles. Influence of lubrication, workpiece temperature, flow stress model and tools kinematics was investigated. Evidence of underfiling due to low temperature has been demonstrated numerically. Results showed that transportation time from the furnace to the press and the workpiece manipulator itself play an important role in the proper manufacturing process of sling shackles.

The constitutive response of a rare-earth magnesium alloy rolled sheet (ZEK100) is evaluated at room temperature under quasi-static conditions for a range of stress states including shear, uniaxial tension, uniaxial compression, plane-strain, and equal-biaxial tension. The anisotropy, tension-compression asymmetry, and distortional hardening of ZEK100 are described, highlighting the need for suitable modelling approaches. Using the experimental results, the CPB06 yield function is calibrated at different plastic work levels to investigate the evolution of shape of the yield locus with deformation.

The technology of high-ratio differential speed rolling (HRDSR) with high contact friction can be used for production of aluminium alloys with UFG structure. But a high friction coefficient is not desirable because of the increasing of the material damage. The paper presents a numerical analysis of the rolls wear and material damage during HRDSR of aluminium alloy 7075. The FEM was used to calculate the rolls wear by Archard’s model and material damage by normalized Cockroft-Latham model.

Transformation induced plasticity (TRIP) steels undergo a phase transformation from an austenite phase to a martensitic phase that enhances the ductility and strength. A phenomenological formulation for TRIP 800 steel is employed to study the thermo-mechanical behaviour during large strains. The model is calibrated for a wide range of strain rates, temperatures and strain paths and used in Marciniak-Kuczynski (M-K) based forming limit diagram (FLD) predictions. The results show the interaction effect of strain-rate, temperature and martensite evolution on formability.

18:00 - 19:30 Meeting of the NUMIFORM Steering committee

20:00 - 22:00 Champagne Tasting Party at La Maison de l’Outil et de la Pensée Ouvrière (Tools and Trade Museum)

51

TUESDAY, 5 JULY 2016 08:30 - 09:10

Plenary Lecture 3 (Room M500): Dr M. Megahed, Germany

Room A001

Chair: E. Massoni Co-Chair: R. Wagoner

Room A002 Chair: R. Logé

Room C001 Chair: P. Montmitonnet

Room C002 Chair: L. Dufort

Co-Chair: A. Dereims

Room N101 Chair: K. Mocellin

09:15 - 09:35 MS11-ID137 The evolution of forming process

models – from process simulation to model-based control

2 Keynotes:

MS2 Keynote - ID257 (30 min)

Full-field simulation of solidification, coarsening and forming of polycrystals

Authors: Efim Borukhovich ;Alexander Monas; Marvin Tegeler;

Ingo Steinbach Contact Author Organization: ICAMS, Ruhr-University Bochum

Germany

The phase-field method has emerged as the method of choice for simulation of microstructure evolution and phase-

transformations. It has wide applications in solidification and solid state transformations in general. Recently the method

has been generalized to treat large deformation and damage in solids. A full-field simulation will be presented starting from solidification, homogenization, heat treatment and forming,

and ending with the evolution of damage during large deformation. Aspects of numerical discretization, efficient numerical integration and massive parallelization will be

discussed.

-------------------------------------------------------

MS2 Keynote - ID7 (30 min)

Large scale FE simulations of recrystallization and grain growth thanks to a level set approach, illustrations in context

of industrial forming processes

Authors: Benjamin Scholtes; Amico Settefrati; Nathalie Bozzolo; Etienne Perchat; Jean-Loup Chenot; Marc Bernacki

Contact Author Organization: Transvalor France

MS4 - ID258 Modelling of joining processes with application to roll bonding of alloys

IMS2 - ID 156 Method for Deep Drawing Process Control Using Segmented-Multiple

Active Drawbeads

IMS1 - ID88 Constitutive modelling for

05Cr17NiCu4nb alloy during hot deformation and application in turbine

blade

Authors: Ton van den Boogaard Contact Author Organization: University

of Twente Netherlands

Authors: Yinan Zuo; Stephan Wulfinghoff; Stefanie Reese

Contact Author Organization: Institute of Applied Mechanics, RWTH Aachen

University Germany

Authors: CATALINA MAIER; VIOREL PAUNOIU; VASILE MARINESCU;

ALEXANDRU EPUREANU Contact Author Organization:

Dunarea de Jos University of Galati Romania

Authors: Yanhong Xiao; Cheng Guo Contact Author Organization: Shanghai

Second Polytechnic University China

The presentation will highlight some key developments in industrial forming simulations in the early days (eighties and nineties) with the focus on bulk forming and algorithm development at the University of Twente (Huétink) and at CEMEF (Chenot). Subsequently, the application in process optimization will be discussed, with contributions from the same groups. An outlook for the integration of process models in ‘model based control’ of forming processes will be given, for which reduced order models are essential.

A cohesive zone element formulation is developed for the bonding and debonding based on a traction-separation law, where the focus is on the bonding and joining process due to plastic interface deformations. The process of roll bonding. Regarding the strength of the interface bonding, a model correlating the interface bonding strength and interface stretch during roll bonding is proposed. It is shown that the deeper the sheets get rolled, larger forces are necessary to peel them afterwards.

This paper presents a new method for deep drawing process control, characterized by: i) segmented-multiple moving drawbeads; ii) optimal reference trajectory for drawbeads position; iii) in-process control where controlled variable is the amplitude of deviation of the actual instant workpiece surface geometry with respect to the surface geometry; iv) periodical validation, calibration and updatation of the control model and reference trajectory; v) reduced order modelisation of the complex deep-drawing process. Experimental results confirms the validity of the new proposed method.

The hot deformation behavior of 05Cr17Ni4Cu4Nb alloy was investigated at the temperatures from 1000 to 1200℃ and strain rates from 0.01 to 10s-1 on Gleeble-1500 thermo-simulation machine. And then, a new constitutive equation incorporating the effect of the strain on the deformation behavior was proposed based on the Arrhenius-type equation. Finally, the developed constitutive equation was applied to the hot forging process of turbine blade.

09:35 - 09:55 MS11-ID54

Principles of Polymer Processing Modelling

MS4 - ID157 Comparative analysis of bonding mechanism in solid state metal

working processes

IMS2 - ID 186 Influence of Surface-profile and

Movement-path of Roller on Thickness Thinning during Multi-pass

Deep Drawing Spinning

IMS1: Keynote lecture H.R. Kandikonda

Authors: Jean-François Agassant

Contact Author Organization: MINES ParisTech/CEMEF France

Authors: Gianluca Buffa; Sergio Pellegrino; Ernesto Lo Valvo; Livan

Fratini Contact Author Organization:

University of Palermo Italy

Authors: Qinxiang Xia; Junhao Zhang; Chenglong Huang; Xiuquan Cheng

Contact Author Organization: School of Mechanical and Automotive

Engineering, South China University of Technology China

Authors: Hans Raj Kandikonda Contact Author Organization: Dayalbagh

Educational Institute India

52

Polymer processing involves three thermo-mechanical stages: Plastication of a solid to an homogeneous fluid which is shaped under pressure in moulds or dies and finally cooled and eventually drawn. Physical properties of polymers make modelling a complex challenge. Several examples of extrusion, film processing and injection moulding will be presented

Recently, an original full field model using the level set

method in a finite element framework has been introduced and validated at the Mines ParisTech - Center for Materials

Forming. This approach has demonstrated its potential for the simulation of 2D or 3D large scale grain growth and

recrystallization problems. Through the development of the Digi-µ software by Transvalor, this methodology is now

considered for industrial applications.

The Piwnik and Plata pressure-time bonding criterion was applied to Friction Stir Welding, Linear Friction Welding, Porthole Extrusion and Roll Bonding. A neural network was set up, trained and used to predict the bonding occurrence starting from the main field variable distributions calculated through specific numerical models developed for each process. The analysis of the results permitted to predict the occurrence of solid bonding and to highlight differences and analogies between the processes in order to obtain sound solid welds.

Over thinning of wall thickness occurs easily during multi-pass deep drawing spinning. The influence of surface-profile and movement-path of roller on thickness thinning was studied based on numerical simulation and experimental research. The results show that for 1060-O Aluminum blank with 1.8mm thickness, the thickness thinning ratio reaches the minimum by using the roller of R25-12 and reduces significantly when spinning from the middle of the blank. The experiment results conform well to the simulation one.

In the aerospace industry, there is a great need for new materials which exhibit improved mechanical properties, increased tensile strength, hardness, and toughness at a reduced weight. A brief introduction of severe plastic deformation (SPD) is presented along with different processing techniques for producing nano-structured materials through SPD. Finite element modeling and simulation of Equal Channel Angular Processing (ECAP), High Pressure Torsion (HPT), Twist Extrusion (TE) and Repetitive Corrugation and Straightening (RCS) is attempted and the results are discussed.

09:55 - 10:15

MS11-ID129 DECISION SUPPORT TOOL FOR

ANCHORING SYSTEM OPTIMIZATION OF TITANIUM CRANIOFACIAL PROSTHESES

MS4 - ID45 Finite element method analysis of

surface roughness transfer in micro flexible rolling

IMS2 - ID 19 About the accuracy of the implicit

analysis used for determining springback in single point

incremental forming process

Authors: Claudio Ciancio; Maria Vittoria Caruso; Gionata Fragomeni; Giuseppina

Ambrogio Contact Author Organization:

Department of Mechanical, Energetic and Management Engineering (DIMEG),

University of Calabria Italy

Authors: Feijun Qu; Zhengyi Jiang Contact Author Organization:

University of Wollongong Australia

Authors: Valentin Oleksik; Adrian Pascu; Ioan Bondrea; Liviu Rosca;

Mihaela Oleksik Contact Author Organization: Lucian

Blaga University of Sibiu Romania

Titanium prostheses are artificial components used during cranioplasty, which require an adequate anchorage system. Because there are no specific guidelines regarding this system, aim of this study was to develop a decision support tool for the identification of the optimal parameters, in terms of screw geometry and overlap dimension considering different damage areas and possible but unforeseen loads. This tool could be considered very helpful for surgeons to realize a rapid and precise anchoring between prosthesis and skull bone.

This paper shows a 3D finite element model for flexibly rolling of a 250 μm thick workpiece with reduction of 20 to 50%, and rolling phase with thinner thickness indicates a better ability to decrease the surface roughness. Four types of initial workpiece surface roughness are studied in the simulation, and the influences of process parameters, such as friction coefficient, rolling speed and roll gap adjusting speed, on surface asperity flattening of workpieces have been numerically investigated and analysed.

The aim of this paper is to analyze the influence of the main factors that introduce errors in springback analysis of the single point incremental forming process: the material properties (especially Young modulus) and the constrained nodes scheme. The Ls-dyna software was used for numerical simulation. The experimental research was conducted on a robot and an Aramis measuring optical system allow the real-time determination of strains, thickness reduction and springback at the end of the forming process.


53

Room A001

Chair: R. Valente Co-Chair: P. Lafon

Room A002 Chair: L. Madej

Room C001 Chair: E. Cueto

Co-Chair: A. Rassineux

Room C002 Chair: M. Bellet

Room N101 Chair: J.C. Gelin

Co-Chair: T. Barriere

10:45 - 11:05 MS10 - ID6 Research on optimization design of conformal cooling channels in hot stamping tool based on response surface methodology and multi-

objective optimization

MS2 - ID245 first steps of recrystallization after low

deformation

MS7 - ID23 Vademecum-GFEM for efficient welding

simulation

MS8-ID149 Oriented Object Modelization applied to Additive

Manufacturing

TOPIC4-ID185 Determination of the activation energy

of silicone rubbers using different kinetic analysis methods

Authors: Bin He; Yanglei Si; Liang Ying; Ping Hu

Contact Author Organization: School of Automotive Engineering, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment,

Dalian University of Technology, Dalian 116024, P.R. China China

Authors: Amel SAMET-MEZIOU; Anne-laure Helbert; Thierry Baudin

Contact Author Organization: first steps of recrystallization Tunisia

Authors: Diego Canales; Francisco Chinesta; Elías Cueto; Frederic Boitout;

José Vicente Aguado Contact Author Organization: École

Centrale de Nantes France

Authors: Jean-François Couturier; Alexandre Schneider Contact Author Organization: URCA/CReSTIC France

Authors: ou huibin; sahli mohamed; barriere thierry; gelin jean-claude;

Contact Author Organization: intitute femto-st France

By means of Optimal Latin Hypercube experimental design, a design matrix with 17 factors and 50 levels is generated. Based on the design results, quadratic response surface models are established to describe the relationship between design variables and evaluation objectives. Then the layout of the conformal cooling channels is optimized according to a multi-objective optimization method to find the Pareto optimal frontier which consists of some optimal combinations of design variables that can lead to an acceptable cooling performance.

The present study is focused on the first steps of recrystallization and texture characterization in an IF-Ti steel 35% deformed by uniaxial tension. Global texture of the deformed state shows the development of a partial a fiber with reinforcements close to the {111} <110> and the {001} <110> components. After complete recrystallization, retention of the deformation texture is observed. A multi scale study is proposed for explain the changement of recrystallization.

In this work, a new advanced simulation method for welding processes based on the Vademecum-Generalized Finite Element Method (V-GFEM) and other Model Order Reduction techniques is proposed. This approach improves the performance of current methods, computing “off-line” parametric prior information (using Computational Vademecums) which enriches the approximation space. This allows us to greatly diminish the use of costly “on-line” adaptive techniques, such us adaptive mesh refinement. We demonstrate its performance for both the thermal and mechanical analysis of welding.

Based on some experimentation in NUM3D Platform, we integrate the possibilities of additive manufacturing processes and the characteristics of the materials. We extend to the specific property inherent in form and control to define a new tetraptic CPMF (Control/Process/Material/Form). We propose, from this tetraptic, an Oriented Object Modelization suited to Additive Manufacturing. In this paper, we set up a virtual representation specific to industrial manufacturing. In fine, this representation is intented to be used in a decision-support tool.

The kinetics of the crosslinking reaction of silicone rubbers was investigated by current techniques: differential scanning calorimeter and oscillating disk rheometry. From the kinetic experimental data, different kinetic analysis methods were used to determine the activation energy of silicone, such the Kissinger-Akahira-Sunose and the integral methods. The results show the influence of the chemical composition of silicone, the modeling used and the applied kinetic methods on the activation energy and the evolution of activation energy during the crosslinking reaction.

11:05 - 11:25 MS10 - ID46

Semi-analytic parameter identification for complex yield functions

MS2 - ID269 A polycrystalline model for stress-strain behaviour of austenitic stainless steel

and its application in forming processes

MS7 - ID59 Application of P.O.D. and D.E.P.O.D.

model reduction methods to semi-thick sheet metal forming

MS8-ID95 Smoothed Particle Hydrodynamics applied to the 3D

printing of fibre reinforced thermoplastics

TOPIC4-ID87 Predictive 3D simulations of

Compressive Resin Transfer Molding

Authors: Niklas Küsters; Alexander Brosius

Contact Author Organization: TU Dresden, Institute of Manufacturing

Technology, Chair of Forming and Machining Processes Germany

Authors: Philippe Pilvin; Kacem Sai Contact Author Organization: Université

de Bretagne-Sud France

Authors: Fadi El Haddad; Lionel Fourment;David Ryckelynck; François

Bay Contact Author Organization: MINES ParisTech, PSL Research University,

CEMEF France

Authors: Erwan Bertevas; Julien Férec; Gilles Ausias; Boo Cheong Khoo; Nhan Phan-Thien

Contact Author Organization: Univ. Bretagne-Sud France

Authors: Pierre Marquette; Arnaud Dereims; Takayuki Ogawa; Masatoshi

Kobayashi Contact Author Organization: ESI Group

France

54

This paper discusses a new parameter identification scheme for complex yield criteria of sheet metals using experimentally determined load and strain distributions and combining analytical stress analysis on sectional strain data with common inverse analysis. The approach is suitable for specimen with a non-homogenous strain distribution over specimen’s section and reduces computing time compared to common methods like iteratively updated FEM considerably. It serves to identify a set of parameters in a fast and precise manner, describing the material behaviour.

A polycrystalline model is used to describe the anisotropic mechanical behaviour of an AISI 316L austenitic stainless steel. An experimental database has been established (tension and shear tests) and used to identify the stress-strain response of the material. The results are then compared with macroscopic models using Hosford’s yield surface. Both models are used to simulate a sheet metal forming process using a finite element code.

P.O.D. and D.E.P.O.D. model reduction methods are applied to semi-thick sheet forming process of the bulge test. The problem is characterized by large deformations, instability development, implicit velocity / pressure formulation and unstructured meshes of tetrahedrons. P.O.D. allows reducing significantly the number of unknowns to around ten unknowns while keeping the results accuracy and preserving instability manifestation. The resulting metamodel remains accurate for different materials, thicknesses and pressure cycles. The D.E.P.O.D. approach allows extending further its validity domain.

Numerical simulations of the 3D printing of CNT-reinforced thermoplastics using an SPH method accounting for the description of fibre orientation are presented. Classical microstructural fibre suspension models are implemented within the SPH framework and the fluid is described as a generalised Newtonian fluid. The deposition of a material layer in the vicinity of the nozzle is simulated and results for the impact of fibre aspect ratio and volume fraction on the fibre orientation state within the deposited layer are reported.

The extensive use of composite materials in automotive structural components with high mechanical requirements is today limited by production rates amongst others. The compressive resin transfer molding process could overcome this limitation enabling car manufacturers to reduce the cycle time of composite parts production. This paper will present new modelling techniques used to simulate the complex 3-dimensionnal resin flow occurring during compressive RTM process: inter-penetrant meshes and Fluid/Solid coupling.

11:25 - 11:45 MS10 - ID49

Constrained design of sheet forming processes

MS2 - ID250 A CRYSTAL PLASTICITY FINITE ELEMENT

ANALYSIS OF COMMERCIAL PURITY TITANIUM

MS7 - ID118 Optimisation of Data Compression of

OpenFOAM Simulations Utilising a Newly Developed Approach

MS8-ID105 Finite element thermomechanical modeling of

deposition of ceramic material during SLM additive manufacturing process

TOPIC4-ID184 Development of identification of

rheological model adapted for Powder Injection Moulding process

Authors: Evripides G. Loukaides; Julian M. Allwood

Contact Author Organization: University of Cambridge United

Kingdom

Authors: Ji Hoon Kim; Joo-Hee Kang; Chang-Seok Oh

Contact Author Organization: Pusan National University Korea, Republic Of

Authors: Alexander Wohltan; Marcus Ionce; Nino Neuwirth; Patrik Widauer;

Erich Pils; Ingrid Schreiber; Rodrigo Gómez Vázquez; Christian Stiglbrunner;

Andreas Otto Contact Author Organization: HTL-

Donaustadt Austria

Authors: Qiang Chen; Gildas Guillemot; Charles-André Gandin; Michel Bellet

Contact Author Organization: Cemef, Mines ParisTech, PSL Research University, UMR CNRS 7635 France

Authors: dimitri claudel; sahli mohamed; barriere thierry; gelin jean-claude

Contact Author Organization: intitute femto-st France

New forming machines are typically incremental improvements on existing designs. Tedious simulations and testing are required for insights on those possible improvements. A method for inventing features of flexible sheet forming processes is explored. An inverse problem is solved by starting with a desired geometry and "un-forming" the part. A selection of kinematic constraints is applied while minimizing the plastic work on the workpiece. The resulting deformation reveals required forces on the part and informs machine design.

Commercial purity titanium has a hexagonal close-packed structure and exhibits unusual anisotropy and asymmetry at room temperature. In order to examine the mechanical behavior of commercial purity titanium, in-situ tensile tests are performed under an orientation imaging microscope. The observed microscale behavior is analyzed and used for developing the crystal plasticity finite element model of commercial purity titanium. Based on the microscale analysis, an anisotropic constitutive model is proposed for macroscale finite element simulation.

In this work we present a new data compression model aimed to reduce the huge amount of data generated while simulating laser assisted manufacturing processes with multiphysical models developed using OpenFOAM® simulation software. The overall compression efficiency of such model is compared versus GNU-Zip®, -the currently offered alternative in the software package- and other commercial tools for our cases of interest as well as for a standard tutorial case.

A three dimensional model for material deposition in Selective Laser Melting (SLM) with application to alumina-zirconia eutectic system is presented. A Beer-Lambert heat source model taking into account the material absorption is derived. The Level Set method with multiphase homogenization is used to track the form of deposed layer and the thermodynamic is coupled to calculate the melting-solidification path. The influence of different process parameters on melt pool profiles and bead shapes is discussed.

This paper shows a method to determine rheological parameters of rheological constitutive models for powder injection moulding. A thermophysical characterization on the powder and feedstock was carried out. The data collected were used for the model’s parameter identification. The used material that is nickel-chromium-based superalloy is typically used in high-temperature and high-performance applications, particularly in the aeronautic industry. However, this nickel alloy is rather expensive; it is why it is very important to reduce the amount of generated wasted material.

11:45 - 12:05

MS10 - ID168 A viscoplastic Pseudo Inverse Approach

for Optimal Tool Design in Forging Process

MS2 - ID67 Ductility prediction of substrate-

supported metal layers based on rate-independent crystal plasticity theory

MS7 - ID101 Simulation of nonlinear benchmarks and

sheet metal forming processes using linear and quadratic solid‒shell

elements combined with advanced anisotropic behavior models

MS8-ID42 An innovative approach for the modelling of Arc welding,

using a level-set method combined with a mesh refinement technique

TOPIC4-ID164 Effect of Normal Stresses on the Results of Thermoplastic Moldfilling Simulation

55

Authors: Anoop Ebey; THOMAS Ali Halouani; Yuming LI; Fazilay ABBES;

Boussad ABBES; YingQiao GUO Contact Author Organization: GRESPI -

University of Reims Champagne-Ardenne France

Authors: Holanyo Koffi AKPAMA; Mohamed BEN BETTAIEB; Farid ABED-

MERAIM Contact Author Organization: LEM3,

UMR CNRS 7239 - Arts et Métiers ParisTech France

Authors: Peng WANG; Hocine CHALAL; Farid ABED-MERAIM

Contact Author Organization: Arts et Métiers ParisTech France

Authors: Christel Pequet; Elie Hachem Contact Author Organization: Transvalor S.A. France

Authors: Alexander Bakharev; David Astbury Shishir; Ray Franco Costa

Contact Author Organization: Autodesk Australia

A new viscoplastic formulation for “Pseudo Inverse Approach” (PIA) is proposed for modelling forging process. This method is coupled with an optimization procedure to obtain the optimal part tool shape for a metal forging process. The equivalent plastic strain variation in the final part and the maximal punch force during the forming process are taken as multi-objective functions. The tool shapes are represented by B-Spline curves. The vertical positions of the control points of B-Spline are taken as design variables.

In this paper, localized necking in metal/elastomer bilayers is investigated using both the bifurcation and the initial geometric imperfection approaches as localization criteria. The rate-independent crystal plasticity theory coupled with both the Taylor and the self-consistent scale-transition schemes is used to describe the behavior of the metal layer. As to the elastomer substrate, a neo-hookean law is used. A comparative analysis of the predictions yielded by the above-mentioned localized necking criteria and constitutive theories is conducted.

A family of linear and quadratic solid‒shell (SHB) elements is presented to model 3D thin structures. Based on reduced integration and special numerical treatments, SHB solid‒shell elements are capable of simulating most thin structural problems with an accurate description of the various through-thickness phenomena. In this paper, the performance of the SHB elements, combined with advanced anisotropic elastic and plastic behavior models, is assessed through various quasi-static and dynamic benchmark problems as well as complex sheet metal forming processes.

The paper describes the numerical model developed to predict the thermo-mechanical behavior during welding process. FEM combined with an efficient mesh refinement technique accurately predicts the Heat Affected Zone and therefore mechanical distortions or residual constraints in the assembly. Thanks to a level-set method, the weld’s shape is no longer considered as an input but becomes a result. Likewise, potential air gap between assembled parts is considered. Recent applications are reviewed and future developments are discussed.

The article deals with the effect of the normal stresses on the predicted flow front and pressure distribution during the filling stage of the thermoplastic injection molding. The normal stresses are predicted using the non-linear Criminale-Ericksen-Filbey model incorporated into a comprehensive 3D simulation software for moldfilling analysis. The additional term improves the prediction of the so called ear-flow effect (melt racing on the edges of the cavity).

12:05 - 13:30 Lunch

56


Prof. F. Barlat, Korea

Room A001

Chair: L. Fourment Co-Chair: A. Rassineux

Room A002 Chair: S. Forest

Co-Chair: E.. Rouhaud

Room C001 Chair: P. Picart

Room C002 Chair: M. Carin

Room N101 Chair: R.Logé

14:30 - 14:50 MS10 - ID70

Sensitivity analysis of the Expansion Process for Alloy UNS N08028

MS1 - ID89 Application of a second-gradient model of ductile fracture on a dissimilar metal weld

MS9 - ID4 Cross Dies Forging: A New Method to

Reduce Forging Force and Price up to 80% thanks FEM

MS8-ID56 Application of the finite element P1 / P1 to the simulation of a MAG welding operation

MS2 - ID260 Crystal plasticity extend FEM

implementation of thermal-tensile aluminum alloy

Authors: AITOR NAVARRO; MARIO LECHNER; ALEJANDRA LOPEZ; UNAI RUIZ Contact Author Organization: TUBACEX

INNOVATION Spain

Authors: Jun Yang; Rémi Lacroix; Jean Michel Bergheau; Jean Bapstiste Leblond;

Gilles Perrin Contact Author Organization: ESI France, Le Recamier, 70 rue Robert, 69458 Lyon Cedex

06, France France

Authors: Hamid Mansouri; Ahmad Nasri Mohajeri; Ali Nasri Mohajeri

Contact Author Organization: FIDEC(www.fidec.ir) Iran

Authors: Eric Feulvarch; Jean-Christophe Roux; Robin Chatelin; Jean-Michel

Bergheau Contact Author Organization: Univ. Lyon,

ENISE, LTDS UMR 5513 CNRS France

Authors: Liu Yang; Yiguo Zhu; Liang Ying; Pu Hu

Contact Author Organization: Dalian University of Techonology China

The Expansion process is one of the critical point in the manufacturing chain of stainless Steel seamless pipes for Oil&Gas Industry. This work describes an optimization of the Expansion process based on sensitivity analysis for different process parameters for Alloy28 using FEM. The optimization is focused on reduction of tool wear, defects and material waste. The demand from this sector to obtain new grades with specific properties and the high cost of experimental trials justifies the use of simulation tools.

A "micromorphic", second-gradient model applicable to ductile porous materials has been proposed, as an improvement from the fundamental work of Gurson that take into account the physical mechanisms responsible for ductile damage. The model has been applied to the study of fracture of the decarburized layer of a Dissimilar Metal Weld. The model successfully reproduces the crack path experimentally observed in a notched tensile sample extracted from this weld, different from the one predicted by the first gradient model.

In this method, the required force (load) is reduced to the greatest possible degree through elimination of flash channel; however, this would also decrease the positive effect of flash channel, namely filling the gaps and pores within the mold. Cross die forging procedure provides a way for providing a better preform design which ensures that the mold is filled without allowing the material to enter the flash channel.Examples of such parts are valve’s body, T-junctions, etc.

The objective of this work is to show the ability of the finite element P1/P1 to simulate a welding operation. First of all, while the P1/P1 finite element is known to be not LBB-stable, we study the properties of this element and the conditions of its correct use. Then we propose a new simple and robust stabilized formulation that prevents parasites pressure modes. Finally, we develop a simulation example of a circular MAG welding operation.

The crystal plasticity model is extended in the finite element method and thermal behavior is integrated in the constitutive equations. Moreover, damage evolution is reflected in the simulation using continuum damage mechanics model. Void evolution and thermal effect could both be shown in the simulation.Thermal parameters are determined in a fitting test of representative volume element to compare with the experimental data. The results prove that the mechanical tensile behavior of aluminum alloy could be well described at different temperatures.

14:50 - 15:10

MS10 - ID79 Fast variable stiffness composite cylinder uncertainty analysis by using reanalysis

assisted Copula function

MS1 -ID72 Nonlocal constitutive equations of elasto-visco-plasticity fully coupled with damage

and temperature

MS9 - ID117 Thermomechanical modelling of steels

behaviors at semi-solid state

MS8-ID176 2D and 3D FE models of laser cladding

process

MS2 - ID32 Introduction to the level-set full field

modeling of spheroidization phenomenon in α/β titanium alloys

Authors: Zeng Yang; Enying Li; Hu Wang

Contact Author Organization: Hunan University China

Authors: Weijie LIU; Khemais SAANOUNI; Carl LABERGERE; Houssem BADREDDINE;

Ping HU Contact Author Organization: University of Technology of Troyes, Dalian University of

Technology China

Authors: khalil traidi; Véronique favier; philippe lestriez; karl debray; laurent

langlois; Nicolas Ranc; michel saby; philippe mangin

Contact Author Organization: IRT-M2P France

Authors: Rúben Jardin; Hoang Tran; Neda Hashemi; Jacqueline Lecomte-Beckers;

Raoul Carrus; Anne-Marie Habraken Contact Author Organization: University of

Liège, ArGEnCo (Architecture, Geology, Environment and Construction)

Department, MS2F (Structures, Fluids and Solid Mechanics) Sector Belgium

Authors: Danaï Polychronopoulou; Nathalie Bozzolo; Daniel Pino Muñoz;

Julien Brucho;n Modesar Shakoor; Yvon Millet; Christian Dumont; Immanuel

Freiherr von Thüngen; Rémy Besnard; Marc Bernacki

Contact Author Organization: Mines ParisTech CEMEF France

57

Correlations may affect the output of composite significantly. To address these correlations, a novel approach for uncertainty analysis based on copula function assisted by reanalysis method is suggested. The Copula function is utilized to address the correlations of input variables.To save the computational cost, an efficient fast computation method, reanalysis method is integrated in the frame. The numerical test demonstrates that the proposed approach is an efficient uncertainty analysis tool for the practical engineering problems.

In this paper, nonlocal anisothermal elasto-visco-plastic constitutive equations strongly coupled with ductile isotropic damage are developed to simulate sheet metal forming processes under large anisotropic plastic strain. New micromorphic temperature and damage variable are introduced into the principle of virtual power and additional balance equations are obtained. Thermodynamically-consistent nonlocal constitutive equations are deduced. This model is used to simulate various sheet metal forming processes at high temperature. Some applications are performed to show the predictive capabilities of the proposed methodology.

There are only few applications of semisolid processing of higher melting point alloys. Steel is a particularly challenging material to semi-solid process because of about 1400°C temperatures involved... An experimental protocol was determined to characterize the thermomechanical behaviors. Uniaxial tensile and compressive tests were carried out on semi-solid specimen having >0.8 solid fraction for different ram speeds and temperatures. Experimental results are used to improve the thermomechanical modelling of steels behaviors at semi-solid state.

Thermal 2D and 3D FE models were developed to retrieve the high temperature gradients created during multi-layer laser cladding deposition of high speed steel powder. The model can deliver the complete thermal history of the deposition process and was validated by experimental measurements. The flux input in the 2D and 3D models are identified using theoretical formulae based on laser power. The thermal history of the specimens is of great importance to predict cracking (thermo-mechanical model) and microstructure (thermo-metallurgical model).

Fragmentation of α lamellaes and subsequent spheroidization of α lathes in α/β titanium alloys occuring during and after deformation are well known phenomena. We will illustrate the development of a new finite element methodology to model them. This new methodology is based on a level-set framework to model deformation and the ad hoc interfaces kinetics. We will focus on the modeling of surface diffusion at the α/β phase interfaces and motion by mean curvature at the α/α grain interfaces.

15:10 - 15:30

MS10 - ID254 Optimization of the single point incremental forming process for titanium sheets by using

response surface

MS1 - ID55 Advanced numerical simulation based on a

non-local micromorphic model for metal forming processes

MS9 - ID259 Study on the manufacturing technology of transmission spline parts using aluminium

in the automotive industry

MS2 - ID25

A new micro scale FE model of crystalline materials in micro forming processes

Authors: Babreddine Saidi; Giraud-Moreau Laurence; Abel Cherouat

Contact Author Organization: Université de Technologie de Troyes France

Authors: Evangelia Diamantopoulou; Carl Labergere; Houssem Badreddine; Khemais

Saanouni Contact Author Organization: France

Authors: Eun-young Jung; Won-young Byun; Won-il Lee

Contact Author Organization: Kyung Chang Industrial Corp. Korea Korea, Republic Of

Authors: Liang Luo; Haibo Xie; Dongbin Wei; Xiaogang Wang; Cunlong Zhou;

Zhengyi Jiang Contact Author Organization: University of

Wollongong Australia

The single point incremental forming process is perfectly suited for the forming of titanium prostheses. However this process suffers from not homogeneous thickness distribution. Moreover considerable forces can occur. In this paper, a numerical approach is proposed to minimize the maximum forming force and to maximize the minimal thickness of titanium sheets. A surface response methodology is used to find the optimal values of two input parameters of the process, the punch diameter and the vertical step size.

An advanced numerical methodology is developed for metal forming simulation based on thermodynamically-consistent nonlocal constitutive equations accounting for various fully coupled mechanical phenomena under finite strain in the framework of micromorphic continua. The numerical implementation into ABAQUS/Explicit is made for 2D quadrangular elements thanks to the VUEL users’ subroutine. Simple examples with presence of damaged area are made to show the ability of the proposed methodology to describe the independence of the solution from the space discretization.

Nowadays Steel is being substituted for aluminium to reduce weight of automobile. Widely applied production method of aluminium component has been casting process or cast/forging processes. But casting or cast/forging processes have limits of application to part which is required high strength durability like automotive component. In this study, flow forming process has been adopted to produce aluminium transmission spline parts to ensure required mechanical properties.

Dividing samples into small areas according to their microstructures and assigning individual properties to each small area are a possible access to micro forming simulation considering material size effects. In this study, a new model that includes grains and grain boundaries was developed based on the measured microstructures of samples. The divided small areas in the model have exact shape and size with real crystals on the samples, and each grain and its boundaries have their own properties.

15:30 -15:50 MS10 - ID144

Multi-criteria optimization strategies for production chains

MS1 - ID44 Constitutive models for elastoplasticity from

a 4D thermodynamic construction and its applications to the simulation of large

deformations

MS9 - ID47 Effects of solid-liquid fraction and semi-

solid processing on the microstructure and segregation of Cr-Mo-V steel

MS2 - ID74

Direct micro-to-macro modelling of the cold rolling of pearlitic steel

58

Authors: Jan Kusiak; Pawel Morkisz; Piotr Oprocha; Wojciech Pietrucha; Lukasz

Sztangret Contact Author Organization: AGH

University of Science and Technology Poland

Authors: Mingchuan Wang; Benoît Panicaud; Emmanuelle Rouhaud; Richard

Kerner; Arjen Roos Contact Author Organization: Laboratoire des Systèmes Mécaniques et d’Ingénierie

Simultanée (LASMIS) Université de Technologie de Troyes (UTT) Institut Charles

Delaunay (ICD) – CNRS UMR 6297 France

Authors: Yifeng Guo; Bin Xu; Mingyue Sun Contact Author Organization: Institute of

Metal Research, Chinese Academy of Sciences, China China

Authors: Laurent Delannay; Jeroen Tacq; Didier Bardel; Marc Seefeldt

Contact Author Organization: KULeuven Belgium

The aim of the paper is presentation of developed optimization strategies, effective at the optimization of multi-stage and multi-threads chain structures (linear or acyclic tree graphs) with multiple intermediate goal functions. The inspiration for this type of analysis is the production chains often seen in industrial plants. Production in these plants consists of sequences of multiple units connected linearly or in tree-structured graphs in which, at various production stages, intermediate quality criteria, related to the semi-products, may occur.

In a framework considering thermodynamic of irreversible process, Eulerian constitutive models for elastoplasticity in large deformation are proposed. A formalism of four-dimensional equations derived from the Theory of Relativity is applied to ensure the generality and covariance of the model. The Lie derivative is also chosen as a true time derivative to verify the covariance and thus material objectivity. 3D models are derived from 4D equations and compared with classical ones by applying in the forming process simulations.

Based on semi-solid forming theory, a novel energy-efficient route called soft-core forging under ultra-high temperature was proposed in open die forging process. To verify its feasibility for industry manufacturing , series of pilot tests(weight 500kg) were carried out in heavy plant. Here, the effects of parameters such as solid-liquid fraction on the microstructure, macrosegregation and mechanical properties of Cr-Mo-V steel were studied experimentally. The microstructure characteristics and mechanical properties such as hardness, tensile strength of specimens exhibit the same tendency.

A crystal plasticity model is adapted in order to predict strength, internal stresses and texture development in pearlite. The model is used as the user-defined material law in macroscopic finite element simulation of rolling. It is shown that the material response depends strongly on the reorientation of cementite lamellae. The model produces good estimates of the lattice strains measured by neutron diffraction as well as the uniaxial tensile curve.


Room A001 Chair:

A. Rassineux Co-Chair: E. Cueto

Room A002 Chair:

E. Rouhaud Co-Chair: S. Forest

Room C001 Chair:

P. Montmitonnet

Room C002 Chair:

Y. Urushiyama Co-Chair: A. Pesin

Room N101 Chair:

P.O. Bouchard Co-Chair:

H. Badreddine

16:30 - 16:50

MS7 - ID109 An efficient augmented RBF-FD method for

Navier-Stokes equations in spherical geometry

MS1 - ID86 Modelling of Microstructure evolution with

Dynamic recrystallization in Phase field environment of Martensitic Steel

MS4 Keynote ID14 (30mn)

FEM-DEM coupling simulations of the tool wear characteristics in prestressed

machining superalloy

Authors: Ruitao Peng; Heng Tang; Xinzi Tang; Zhuang Zhou

Contact Author Organization: Xiangtan University China

TOPIC3-ID5 Thinning behavior of laminated sheets metal in warm deep-drawing process

under various grain sizes

MS3 - ID100 Evaluation of ductile failure models in

sheet metal forming

Authors: Nikunja Bihari Barik; T. V. S. Sekhar Contact Author Organization: School of

Basic Sciences, IIT Bhubaneswar, Bhubaneswar, Odisha India

Authors: Jan Hiebeler Contact Author Organization: ThyssenKrupp

Steel Europe Germany

Authors: Mehran Kadkhodayan; Ehsan Afshin

Contact Author Organization: Ferdowsi University of Mashhad Iran

Authors: Rui Amaral; Pedro Teixeira; Erfan Azinpour; Abel D. Santos; J. Cesar de Sá

Contact Author Organization: INEGI Portugal

59

The efficiency of any numerical scheme measures on the accuracy of the scheme and its computational time. An efficient meshfree augmented local radial basis function (RBF-FD) method has been developed for steady incompressible Navier-Stokes equations in spherical geometry with unbounded domain. The axi-symmetric spherical polar Navier-Stokes equations are solved without using transformation. The non-linear convective terms are handled efficiently by considering upwind type of RBF nodes. The developed scheme saves 50% of the CPU time than the usual RBF-FD method.

A new simulation environment is developed to simulate the evolution of microstructure and the corresponding flow stress during rolling and softening. An orientation dependent crystall plasticity hardening model is coupled to grain evolution-, recovery- and recrystallization kinetics within the three dimensional phase field framework. Kinetics are treated consecutive to differentiate between individual hardening and softening effects. Simulation experiments are compared to hot compression tests at 1100°C with a strain rate of 1 s-1.

In prestressed machining superalloy, due to the complicated contact loading at the tool-

chip interface, ceramic tool wear is rare difficult to evaluate only by experimental approaches. The overall objective of this

study is to develop a methodology to predict the tool wear evolution in

prestressed machining superalloy using combined FEM and DEM simulations. The

results show that higher cutting speed effectively results in slighter wear of Sialon

ceramic tools, and deeper depth of cut leads to more serious tool wear.

The warm deep-drawing process of laminated sheets consists of aluminum alloy series 1050, 5052 and stainless steel 304, experimentally. To survey the thinning behavior in laminate sheet during warm deep-drawing process; three blank temperatures namely, 25̊ C, 100̊ C and 160 ̊C are examined. Moreover, to obtain different grain sizes, the aluminum sheets are annealed at 350̊ C, 400 ̊C and 450̊ C for 1 hour. Furthermore, influence of temperature and grain size on variation of thickness is surveyed.

Traditionally, combination of equivalent plastic strain and stress triaxiality parameters are taken into account when performing characterization of material ductility. Some well-established models like Lemaitre model, GTN based models and many others perform relatively well at high-triaxiality stress states but fail to give adequate answers to low-triaxiality states. In this work, three damage models are presented, applied and assessed to a cross-shaped component. Concerning material, AA5182-O, corresponding damage parameters are characterized by an inverse analysis procedure for each damage model.

16:50 - 17:10 MS7 - ID247

An Element Free Galerkin method for an elastoplastic coupled to damage analysis

MS1 -ID212 Finite Similitude in Metal Forming

TOPIC3-ID121 Finite element modeling of tube

deformation during cold pilgering

MS3 - ID266 Prediction of failure limits in fine blanking

processes

Authors: Zohra SENDI; Hédi BELHADJSALAH; Carl LABERGERE; Khémais SAANOUNI Contact Author Organization: National

Engineers School of Monastir,Laboratory of Mechanical Engineering Tunisia

Authors: Keith Davey Rooholamin; Darvizeh Anees Al-Tamimi

Contact Author Organization: The University of Manchester United Kingdom

Authors: YAĞIZ AZİZOĞLU; MATTIAS GÄRDSBACK; BENGT SJÖBERG; LARS-ERIK

LINDGREN Contact Author Organization: Dalarna

University Sweden

Authors: Thomas Wesner; Pavel Hora Contact Author Organization: ETH Zurich,

Institute of Virtual Manufacturing Switzerland

In this work, a Meshless approach for nonlinear solid mechanics is developed based on the Element Free Galerkin method. Furthermore, Meshless is combined with an elastoplastic model coupled to ductile damage. The efficiency of the proposed methodology is evaluated through various numerical examples. Besides these, two-dimensional tensile tests under several boundary conditions were studied and solved by a Dynamic-Explicit resolution scheme. Finally, the results obtained from the numerical simulations are analyzed and critically compared with Finite Element Method results.

Scaled experimentation founded on dimensional analysis has a long history but has to-date achieved little success in complex metal-forming applications. This is particularly true for thermo-mechanical processes, where scaled experimentation is recognised to provide little insight. It is shown in this paper that current similarity approaches in continuum physics can be overly prescriptive. The concept of finite similitude is introduced, which is shown to be better suited to finite-element analysis for the design of scaled experiments.

A three-dimensional finite element model of cold pilgering of stainless steel tubes has been developed to increase the understanding of forces and deformation during the process. The focus is on the influence of vertical displacements of the roll stand and axial displacements of the mandrel and tube. The displacements of the rigid tools are achieved by supporting them with elastic springs. A sensitivity study is performed to investigate the influence on the contact surface, strain path and roll separation force.

Prediction of failure limits in fine blanking processes

17:10 - 17:30 MS7 - ID53

Improving 3D complex crack propagation in tetrahedral meshes

MS1 - ID143 Regularisation operators in plasticity and

damage at finite deformations

MS4 - ID187 A Fully-Coupled Approach Combining

Plastic Deformation and Liquid Lubrication

TOPIC3-ID132 Formability Effects of Variable Blank

Holder Force on Deep Drawing of Stainless Steel

MS3 - ID161 Numerical prediction of ductile failure in

the blanking process by means of uncoupled and coupled phenomenological

damage models

Authors: Fangtao YANG; Alain RASSINEUX; Carl LABERGERE; Khemais SAANOUNI

Contact Author Organization: Université de Technologie de compiègne France

Authors: Samuel Forest Contact Author Organization: Mines

ParisTech CNRS France

Authors: Esmeray Üstünyagiz; Peter Christiansen; Chris V. Nielsen; Niels Bay;

Paulo A.F. Martins Contact Author Organization: Technical

University of Denmark Denmark

Authors: Pramote Koowattanasuchat; Numpon Mahayotsanun; Sukunthakan

Ngernbamrung; Sedthawatt Sucharitpwatskul; Sasawat

Mahabunphachai Contact Author Organization: Khon Kaen

University Thailand

Authors: Cristian Canales; Jean-Philippe Ponthot

Contact Author Organization: University of Liège Belgium

60

We propose a 3D h-adaptive methodology dedicated to the simulation of metal forming processes involving ductile crack initiation and propagation. Cracks are represented by fully damage tetrahedron deletion. Specific smoothing tools of the surface crack inspired by subdivision line and surface techniques will be presented. Element size inside the domain and along the crack path is driven by error indicators based on the derivatives of physical quantities calculated by diffuse approximation. The procedure is integrated in Abaqus explicit.

A thermodynamical framework is presented to derive regularisation operators in micromorphic continuum media displaying elastic-plastic and damaging behaviour at large deformation. Three alternative finite deformation frameworks are successively applied: decomposition of a Lagrangian strain into elastic and plastic parts, use of a local objective frame and multiplicative decomposition of the deformation gradient. In each case, nonlinear generalizations of the well-known Helmholtz regularization operator are derived and compared.

This paper presents a new approach based on a fully coupled procedure in which the lubricant flow and the plastic deformation of the metallic material are solved simultaneously. The approach is applied to strip reduction of a sheet with surface pockets in order to investigate the escape of the lubricant from the pocket by means of Micro Plasto HydroDynamic Lubrication (MPHDL) and Micro Plasto HydroStatic Lubrication (MPHSL) mechanisms.

This paper investigates the formability effects of variable blank holder force on deep drawing of AISI 304 rectangular cup. Various sets of blank holder forces were set to observe the formability, which was indicated by the percentage of sheet thinning in this study. The results showed that the blank holder forces at the locations of the sheet edges surrounding the cavity areas were considered dominant to reduce sheet thinning and enhance the formability.

Fracture prediction in blanking has gained great attention due to increasing requirements of high-quality products. In this work, the predictive capabilities of different uncoupled and coupled damage models, recently implemented in a fully implicit homemade FE code, for blanking process are compared. Some advanced models considered here include damage sensitivity to both triaxiality and Lode angle in their formulation. Adoption of a constant or variable cut-off value of triaxiality for fracture is analyzed. Finally, numerical and experimental results are compared.

17:30 - 17:50 MS7 - ID170

Automatic correction of the time step in implicit simulations of thermomechanical

MS1 - ID142 A phase-field approach for ductile failure

MS4 - ID175 Process parameter dependent friction

model adapted to FE extrusion processes

TOPIC3-ID194 Finite element modeling of combined process of plate rolling and stamping

MS3 - ID238 Determination of instability of a DP 980 steel sheet under different stress states

based on experiment and theoretical models

Authors: João Martins; Diogo Neto; José Alves; Marta Oliveira; Luís Menezes


Authors: Erfan Azinpour; Jose Cesar de Sa; Abel Santos

Contact Author Organization: INEGI, Faculty of Engineering, University of Porto Portugal

Authors: Christoph Becker; Longchang Tong; Pavel Hora

Contact Author Organization: IVP ETH Zurich Switzerland

Authors: Alexander Pesin; Ernest Drigun; Denis Pustovoytov; Ilya Pesin


Russian Federation

Authors: Hong-Wu Song; Dong-Zhi Sun; Florence Andrieux; Shi-Hong Zhang

Contact Author Organization: Institute of Metal Research, Chinese Academy of

Science China

This work presents an algorithm to solve thermomechanical problems, based on a staggered coupling strategy. This kind of strategy partitions the overall problem into a heat transfer problem, at a fixed configuration, and an elastoplastic mechanical problem, at a known temperature. The time step for both problems is controlled with an R-mim strategy, which permits an increment of time variable along the process. This study focuses on the optimization of the limits for the variables that control the R-min strategy.

Most of the stages of material behavior can be described by means of continuous models but they fail to give an adequate answer when initiation and propagation of cracks occur. Continuous-discontinuous approaches can be adopted resorting to different techniques like element erosion, remeshing or X-FEM techniques. Here a new continuous model approach based on the phase field theory is extended to ductile failure. The phase field variable describes the damaged zone and its evolution is associated with standard damage models.

Standard friction models do not take the process parameters temperature, velocity and surface pressure entirely into account. To describe the friction conditions during extrusion processes, the impact of all process parameters has to be considered. A remarkable influence of pressure and temperature on friction is experimentally detected whereas the influence of sliding velocity is small. In the framework of the conference the experimental results, the subsequent modelling approach as well as FE simulation results will be presented and discussed.

This article presents the results of FE modeling of a fundamentally new combined process of plate rolling and stamping. This process was first used to produce large-sized bodies of revolution, such as the bottom of a vacuum vessel, bottom of a ladle furnace. Traditionally, such products (with the wall thickness exceeding 40 mm and the diameter/width of up to 4000 mm) are produced in machine-building enterprises using stamping processes. Were investigated various schemes of implementation of the combined process

A new design of cruciform type specimen for uniaxial stretching is proposed to test formability with strain ratios in the range of from shear to tension.The forming limit of a DP 980 steel sheet was determined with strain ratios from −1≤ε2/ε1 ≤1. Then the experimental results were drawn in both ε1- ε2 and εeq- σm/σeq spaces, and the theoretically predicted results based on Hill, Swift, M-K, Storen-Rice and Hora instability models were compared with the experimental ones.

17:50 - 18:10

MS7 - ID174 Interaction of various functional elements in

thin-walled cups formed by a sheet-bulk metal forming process

TOPIC3-ID255

Investigation of a composite ring rolling process by FEM and experiment

MS3 - ID 81 A generalized mapping procedure of

ductile fracture model between stress and strain spaces

Authors: Robert Schulte; Thomas Schneider; Michael Lechner; Marion Merklein

Contact Author Organization: Institute of Manufacturing Technology Germany

Authors: Joachim Seitz Gideon Schwich; Stefan Guenther; Gerhard Hirt

Contact Author Organization: Institute of metal forming RWTH University Germany

Authors: Shunying Zhang; Jeong Whan Yoon

Contact Author Organization: Deakin University Australia

61

Sheet-bulk metal forming allows the manufacturing of sheet metal parts with integrated functional elements. The investigated process combines deep drawing and upsetting. The occurring 2D and 3D stress and strain states lead to challenges regarding material flow control due to different geometries of functional elements. The numerical analysis shows the transferability for the results of the different functional elements for their combination and the interaction between those functional elements regarding the material flow. The results are validated by experimental tests.

Roll bonding is a well-known process to produce composite sheet metals. Applying to ring rolling would allow to produce seamless radial composite rings, which combine the advantages of different material properties. This process is studied, both experimentally and using FEM-simulation. For the FEM an explicit model is applied including the kinematic control algorithms of the radial-axial ring rolling machine. In the used model the occurrence of unexpected asymmetrical joints can be reproduced, which are observed during the rolling experiments.

A frequently applied mapping method for a ductile fracture model from stress space to strain space is based on the isotropic von Mises model which is not always consistent with non-quadratic yield criterion used for modeling of ductile fracture. The proposed research work demonstrates a general procedure which can be incorporated with any yield criterion in ductile fracture mechanics. A new mapping method of fracture model from stress space to strain space has also been formulated in this study.

20:00 Banquet +NUMIFORM'2019 at Centre de Congrès

62

WEDNESDAY, 6 JULY 2016 08:30 - 09:10

Plenary Lecture 5 (Room M500): Prof. R. Logé, Switzerland



Room A002 Chair:

P. Marquette Co-Chair: Y. Ming Li

Room C001 Chair:

A. Jacot

Room C002 Chair:

E. Hachem

Room N101 Chair:

C. Labergere

09:15 - 09:35 MS11-ID62

Modelling of rolling processes: historical development and perspectives

IMS2 - ID 202 Finite Element Analysis of hot Single Point

Incremental forming of hip prostheses

MS2 - ID48 Development of digital material

representation model for porous metallic microstructures

MS12 - ID43 Recent developments in coupling material

modelling with THERCAST® for multicomponent alloy casting

TOPIC3-ID230 Study on the Application of Electron Beam Welding to Automatic Transmission Parts

Authors: Pierre MONTMITONNET

Contact Author Organization: MINES ParisTech - CEMEF France

Authors: Manel Sbayti; Andrea Ghiotti; Riadh Bahloul; Hédi Belhadjsalah ;Stefania

Bruschi Contact Author Organization: Laboratoire

de Génie Mécanique (LGM), Ecole Nationale d’Ingénieurs de Monastir (ENIM), Université

de Monastir Tunisia

Authors: Lukasz Madej; Adam Legwand; Konrad Perzynski

Contact Author Organization: AGH University of Science and Technology Poland

Authors: Ali SAAD; Patrice Lasne; Rafael Miranda; Zhanli Guo; Jean-Phillippe Schillé Contact Author Organization: TRANSVALOR

S.A. France

Authors: sung-min LEE; won-yong BYEON; dal-joon CHA

Contact Author Organization: Kyung Chang Industrial Corporation Korea, Republic Of

The first 3D FEM developed by Prof. Chenot in the late 70s was devoted to hot rolling and the spread (slab widening) phenomenon, for which the Upper Bound Method had showed limitations, at least under the form used at the time. It is therefore fit to sketch the time evolution of rolling models, their evolving ambitions, to locate Prof. Chenot's and CEMEF's contributions before evoking the present trends and future demand, revisiting the debate between FEM and simple methods

Ti6Al4V is one of the most frequently used materials for biomedical applications due to its biocompatibility and excellent mechanical properties. However, wide usage of Ti6Al4V is limited by its poor room-temperature formability. Therefore, hot Single Point Incremental Forming(SPIF)has been used to improve its formability.This paper aims at proving numerically the feasibility of the hot SPIF of an acetabular component of hip prosthesis.The effect of the forming temperature on the geometric accuracy and the failure of the final product is investigated.

The main goal of the research is development of the integrated method for determining the formability characteristics of porous materials for application in modelling and computer simulation of metal forming processes. Particular attention is put on implementation of a complete digital material representation model replicating complex morphology of sintered porous microstructures for subsequent micro and multi scale analysis of deformation. Discrete modelling approaches namely cellular automata/Monte Carlo method will be used to develop digital material representation models within the work.

In the past couple of decades, the casting industry has been substantially relying on simulation software to improve the as-cast product quality. However, accurate predictions are often difficult, due to the complexity of phase properties evolution during solidification and subsequent solid-state transformations, especially for multicomponent alloys. In the current paper, we aim to alleviate these difficulties by coupling THERCAST® casting simulations with thermodynamic and thermomechanical data, made available by JMatPro®. The approach is particularly suited for predicting chemical segregations.

In this study, the electron beam welding(EBW) is applied to manufacture the automatic transmission parts. In order to evaluate on the characteristic of electron beam welding, an experiment is performed according to conditions on characteristic of bead width and penetration depth. Also, in order to apply the automatic transmission parts of EBW, the experiment is performed. In order to apply the EBW of automatic transmission parts, the process conditions of EBW to satisfy of product specification were derived.

09:35 - 09:55 MS11-ID158

Computer system for identification of tool wear model in hot forging

IMS2 - ID 235 Prediction of the Deformation Mechanism including Shear Fracture in the Sheet Metal

Forming Process using FEA with the Solid Element

MS2 - ID35 A new algorithm for dense ellipsoid packing

generation in context of FEM or DEM

MS12 - ID233 Multiphase multicomponent modelling of

macrosegregation in a 36t steel ingot

TOPIC3-ID76 Tailoring compartmentalized models for

metallic alloys forming

Authors: Marek Wilkus; Lukasz Rauch; Zbigniew Gronostajski; Sławomir Polak;

Maciej Pietrzyk Contact Author Organization: AGH University

of Science and Technology Poland

Authors: Jong-Hwan Kwak; Se-Ho Kim; Hong-Geun Han; Chang-Yeop Lee; Jong-Kyu

Park; Kee-Dong Lee; Tae-Ju Kim; Chang-Hyeok Choi

Contact Author Organization: Daegu University Korea, Republic Of

Authors: Dmitrii Ilin; Marc Bernacki Contact Author Organization: Mines

ParisTech Cemef France

Authors: Wutao Tu; Zhenhu Duan; Houfa Shen; Baicheng Liu

Contact Author Organization: Tsinghua University China

Authors: Moustapha Issack; Ludovic Charleux; Laurent Tabourot

Contact Author Organization: SYMME, Université de Savoie Mont Blanc France

63

The hybrid model of tool material deterioration is proposed. It accounts for various mechanisms, including abrasive wear, adhesive wear, thermal fatigue, mechanical fatigue, oxidation and plastic deformation. Individual models of various complexity were used to simulate separate phenomena. The strategy of combination of these models in one hybrid system was developed to account for the synergy of various mechanisms. The physical simulations of hot forging were used to supply the data for identification of models.

The finite element analysis is carried out into the simulation of the sheet metal forming process in order to confirm the applicability of the solid element. The simulation investigates the prediction accuracy of earing and springback as well as the overall deformation mechanism in the conventional deep drawing process. The analysis of the stamping process for the front lower arm in the automobile is also carried out in order to predict the shear fracture originated from the sheared edge.

A new 2D constructive algorithm, called Advancing Layer Algorithm, for the generation of dense ellipse packing is proposed. The method allows to respect the imposed area, shape ratio and spatial orientation distributions (i.e. the inertia tensor) and achieves high packing densities. Thanks to an approximation of each ellipse by a set of circles, cost of this algorithm remains reasonable and can be easily immerged on FE mesh. Morevover, non-equiaxed polycrystalline microstructures can be generated thanks to this approach.

A multiphase model considering shrinkage induced-flow, solid grain sedimentation, thermo-solutal convection is used to predict macrosegregation in a 36-ton steel ingot. Measurements, including the temperature records at the mould-ingot interface, macrostructure detection, and solute concentration distributions, are conducted to acquire the relevant calculation parameters for the 36-ton steel ingot. Interfacial balance is adopted to build constraint between different solute element evolutions. Good agreements are obtained for comparisons between predictions and measurements of solute variations along selected lines.

Plastic deformation in metallic alloys is heterogeneous by nature. Compartmentalized models have been developed in order to overcome the flaws of classical homogeneous models by taking into account a certain amount of heterogeneity in the plastic behavior by means of compartments with specific behavior. In this work, we show how this heterogeneity can be tailored to fit the behavior of various metallic alloys. The choice of the local behavior of each compartment and the distribution of the heterogeneities are debated.

09:55 - 10:15 MS11-ID131

Dynamic DOE for porthole die extrusion optimisation

IMS2 - ID 77 OPTIMIZATION OF PROCESS PARAMETERS FOR HYDRO-MECHANICAL MULTI-STAGE

DEEP DRAWING OF INCONEL FOR AEROSPACE APPLICATIONS

MS2 - ID40 Simulation of the Dissimilar Joining Process

of Aluminum and Steel by Laser Assisted Wetting

MS12 - ID114 3D simulation model for highly loaded fluids

with large spherical particles

TOPIC3-ID265 A numerical study of multi-pass design based on Bezier curve in conventional spinning of

spherical components

Authors: Claudio Ciancio; Francesco Gagliardi; Giuseppina Ambrogio; Luigino

Filice Contact Author Organization: University of

Calabria Italy

Authors: Ravi Kumar Digavalli; Manohar M. Contact Author Organization: Indian Institute of Technology Delhi India

Authors: Rodrigo Gómez Vázquez; Andreas Otto; Gerhard Liedl; Stefan Tatra; Robert Feichtenschlager; Christian Stiglbrunner

Contact Author Organization: Vienna University of Technology Austria

Authors: GUILLAUME FRANCOIS; LAURENCE VILLE; GALLIER STANY

Contact Author Organization: TRANSVALOR S.A. France

Authors: Tian Gan; Qingshuai Kong; Zhongqi Yu; Yixi Zhao; Xinmin Lai

Contact Author Organization: Shanghai Jiao Tong University China

Extruded profiles are widely used but their design is still difficult. Several parameters have to be considered. This is particularly true when complex geometries, i.e. non- symmetric or hollow profiles have to be obtained. A novel metamodel technique was proposed to define the relationship between input and output process parameters in porthole die extrusion. An iterative dynamic DOE was finally used to improve the accuracy of the model around the most promising area of the process domain.

Numerical simulations have been carried out for multi-stage hydro-mechanical deep drawing of a part with hemispherical bottom from Inconel 718 sheets using FEM. Process parameters such as peak fluid pressure, pressure path, draw ratio, blank holding force and coefficient of friction have been optimized to reduce thinning in the final part and enhance formability. It is also shown that the part can be drawn to the desired depth in less number of drawing steps when compared to conventional deep drawing.

This paper shows an analysis of the transient dynamics during the dissimilar joining process of aluminum-steel along with a comparison of the final results with experimental data. The development of a multiphysical model within OpenFOAM® simulation software comprising diffusion and reaction physics allowed to simultaneously obtain both, macro- and mesoscale effects, such as the surface wetting and the growth of the intermetallic layer.

In this work, we aim to simulate the effect of local particles concentration on the macroscopic flow in an industrial part. We present a migration prediction method for highly loaded fluids with large spherical particles. Migration computation is coupled with Navier-Stokes resolution, by adding a local viscous term and a frame invariant extra-stress term. The implementation in the Rem3D® simulation software enables us to realize several validations, from simple analytical case to more complex and three dimensional industrial cases.

Bezier curve has been widely used as the roller path in conventional spinning. In this paper, Finite Element model with parameterized 2-pass conventional spinning toolpaths based on quadratic Bezier curve is developed to explore the influence on the wall thickness reduction of spherical components. The results show that the first path has significant effect on wall thickness distribution and the selection of parameter values in toolpath is crucial for thickness distribution.


64



Room A002 Chair:

M. Bruenig Co-Chair:

J. Cesar De Sa

Room C001 Chair:

I. Steinbach

Room C002 Chair:

E. Hachem

Room N101 Chair:

S.H. Zhang Co-Chair:

S. Sieberer

10:45 - 11:05

MS11-ID263 Case study on the influence of kinematic hardening to a parameter-free and non-

invasive form finding approach

MS3-ID130 Ductile fracture – Influence of

heterogeneous microstructure on nucleation, growth and coalescence

mechanisms

MS2 - ID17 Simulation on microscopic deformation

behavior of engine gasket

MS12 - ID135 Simulation of Friction Stir Processing of 304L

Stainless Steel

TOPIC3-ID271 Effect of dynamic recrystallization on interface bonding during plastic deformation process of

same superimposed metals at high temperature

Authors: Philipp Landkammer; Paul Steinmann

Contact Author Organization: Chair of Applied Mechanics, FAU Erlangen-Nuremberg

Germany

Authors: Pierre-Olivier Bouchard; Modesar Shakoor; Victor Trejo Navas; Marc Bernacki

Contact Author Organization: CEMEF - Mines ParisTech France

Authors: Ke CAO; Yixi ZHAO; Sun JIN Contact Author Organization: Shanghai Key

Laboratory of Digital Manufacture for Thinwalled Structures, Shanghai Jiao Tong

University China

Authors: Michael Mile;s Tracy Nelson; Lionel Fourment

Contact Author Organization: Brigham Young University United States

Authors: Zhang Jianyang; Sun Mingyue; Xu Bin Contact Author Organization: Institute of

metal research, Chinese academy of sciences China

Inverse form finding – as a type of shape optimization – aims in determining the optimal design of a workpiece for a specific forming process. Recently, a novel parameterfree approach was developed and benchmark tests already delivered promising results. As a feature, a coupling to an arbitrary finite element software is feasible in a non-invasive fashion. The aim of this contribution is to investigate the effect of kinematic hardening and cyclic loading to the convergence behavior of the algorithm.

Metallic materials microstructure is essential if one wants to predict accurately ductile fracture under complex multiaxial and non-proportional loadings. An advanced finite element approach based on level set functions and body-fitted immersed meshing capabilities enable the modeling of nucleation, growth and coalescence mechanisms for complex 3D microstructures and under large plastic strain. Applications on real microstructures (coming from in-situ laminography) and exact boundary conditions (thanks to Digital Volume Correlation) are studied and discussed for different loading conditions.

Engine gasket is thin steel plate with coatings. Its compression deformation affects the height of engine assembly, which changes combustion volume and then influences engine performance. In this paper, the assembly simulation of head, block and gasket was studied. Then a further gasket’s partial micro-model in micron-scale meshes was established to analyze the thin coatings. Deformation of each gasket layer was analyzed and more precise results were obtained during simulations. Lead pellet tests were done to verify results of simulation.

An Eulerian finite element approach was used to predict material flow and temperatures during friction stir processing (FSP) of 304L stainless steel. Steady-state temperatures and strain rates allowed for estimates of recrystallized grain size in the stir zone. Temperature predictions were accurate to within 4% in the plate, compared to experimental measurements in three locations. Recrystallized grain size predictions were also reasonable compared to experimental measurements. Model results will be used to establish relationships between FSP conditions and resulting microstructure.

A series of Cu-Cu compressed isothermally experiments were designed to investigate the effect of dynamic recrystallization on interface bonding during plastic deformation process. The hot compression tests were carried out at temperature range from 750 ℃ to 900 ℃ at strain of 0.10, 0.20, 0.40 and 0.60 with strain rate of 0.1 s-1. Dynamic recrystallization was characterized by optical microscopy. It appears that along with the increase of the deformation and the compression temperature, the better the interface bonding degree.

11:05 - 11:25 MS11-ID71

Influence of forming processes on crash performance of vehicle body components

MS3-ID33 Deformation and fracture of aluminum thin

sheets with a PLC model and comparison with DIC3D tomography

MS2 - ID210 Compaction simulation of nano-crystalline metals with molecular dynamics analysis

MS12 - ID191 Numerical Simulation of Temperature Distribution and Material Flow During

Friction Stir Welding of 2017A Aluminum Alloys

TOPIC3-ID248 SOLUTIONS FOR SAFE COILING AND COIL HANDLING IN CASE OF THICK AND HIGH

STRENGTH STEEL

Authors: Giovanni Belingardi; Giovanni Castiglione

Contact Author Organization: Politecnico di Torino Italy

Authors: Gilles Rousselier; Thilo F. Morgeneyer; Sicong Ren

Contact Author Organization: MINES ParisTech, PSL Research University France

Authors: AR Khoei A Rezaei; H Mofatteh; M Babaei

Contact Author Organization: Sharif University of Technology Iran

Authors: Oussama Mimouni; Riad Badji ;Mohamed Hadji; Afia kouadri-david; Hamel

Rachid ;Nabil Chekroun Contact Author Organization: Laboratory of Aircrafts, University of SaadDahlab, Blida 1,

Blida, Algeria. Algeria

Authors: Stefan Sieberer; Lukas Pichler; Manfred Hackl

Contact Author Organization: Primetals Technologies Austria GmbH Italy

65

The production process of car structural components can affect their crashworthiness owing to the introduction of modifications in the material characteristics during the sheet metal forming process. The deep drawing and the subsequent operations induce material work hardening, sheet thickness variation and geometry variation. Such modifications are not uniformly distributed and may relevantly affect local features. As a consequence the forming process of a component results to have an impact on the vehicle crashworthiness.

Several models are combined in FE analyses of a thin aluminum CT specimen: polycrystalline model for plasticity, PLC model, porous plasticity and Coulomb fracture models. Multiple strain bands are obtained, similar to the ones observed in laminography with 3D digital volume correlation. Strain rate bands appear and vanish in relation with the load-displacement curve serrations. Crack propagation occurs during strain rate surges. The strong relation between the PLC phenomenon and the transition from flat to slant ductile fracture is emphasized.

The molecular-dynamics analysis is presented for 3D-compaction simulation of nano-crystalline metals under cold-compaction process. The EAM pair-potential is employed to model the formation of nano-crystalline-particles at different temperatures and rates-of-deformation in die-forming process. The die-walls are modeled using the Lennard-Jones inter-atomic-potential between atoms of nano-powders and die-walls. The results of atomic simulation are compared with experiments for densification behavior of nano-powders. It is shown that the proposed molecular-dynamics simulation can be efficiently used through a multi-scale modeling of powder-compaction forming.

In this study, CFD based numerical model is developed to predict the temperature distribution and material flow during FSW of aluminum alloy 2017A.The main objective is to gain a better understanding of the flow of material around a tool, which leads to a good estimate flow and temperature. These results were obtained using a viscosity which is near the solidus softening.

Currently hot rolling plants are entering the market segment for thick gauges and high strength material where the elastic bending property of the strip leads to internal forces in the coil during coiling operation. The strip tends to open.. Primetals is investigating several possibilities to facilitate safe coil evacuation and coil handling under spring-back conditions. The contribution includes finite element models of such mechanical solutions, and results of parameter variation and stability limits of case studies are shown.

11:25 - 11:45 MS6-ID61

Finite Element Simulation of Selected Bulk Nano-material Processing Techniques

MS3 Keynote ID90 (30 mn)

Experimental observations and numerical simulations of strain rate dependent PLC

effects in AA2139 and AA2198 Al-alloy sheet

Authors: Sicong Ren; Thilo Morgeneyer

;Gilles Rousselier; Matthieu Mazière; Samuel Forest

Contact Author Organization: MINES ParisTech, PSL Research University France

Negative strain rate sensitivity and strain

localization bands are observed in AA2198 Al-alloy through tensile tests and digital

image correlation (DIC). Dynamic localization band is observed travelling

through the specimen before necking at different strain rates. A model combining PLC effect with damage is applied for FE simulations. The localization bands are

reproduced and compared with DIC observations. The influence of PLC effect on

fracture process of a notched specimen is discssed.

MS2 - ID243 Effect of austenitization temperature on the microstructure and mechanical properties of

B1500HS boron steel in the hot stamping

MS12 - ID228 Sensitivity analysis of size effect on the

performance of hydrostatic bearing

TOPIC3-ID242 Behavior of Stainless steel: application of

stamping

Authors: Hans Raj Kandikonda

Contact Author Organization: Dayalbagh Educational Institute India

Authors: Huiping Li; Bingtao Tang; Lianfang He

Contact Author Organization: Shandong University of Science and Technology China

Authors: dongju chen; lihua dong ;shuai zhou; jinwei fan

Contact Author Organization: College of Mechanical Engineering and Applied Electrics Technology, Beijing University of Technology

China

Authors: Sameh BOUOUNI; Safwen FKAIER; Amna ZNAIDI; Mohamed SOULA

Contact Author Organization: LMAI National Engineering School of Tunis, B.P. W3038,

Tunis, Tunisia El Manar Preparatory Engineering Institute, B.P. 1172, 3018 Tunis,

Tunisia Tunisia

In the aerospace industry, there is a great need for new materials which exhibit improved mechanical properties, increased tensile strength, hardness, and toughness at a reduced weight. A brief introduction of severe plastic deformation (SPD) is presented along with different processing techniques for producing nano-structured materials through SPD. Finite element modeling and simulation of Equal Channel Angular Processing (ECAP), High Pressure Torsion (HPT), Twist Extrusion (TE) and Repetitive Corrugation and Straightening (RCS) is attempted and the results are discussed.

A typical part of B1500HS steel was formed using hot stamping tools. Effect of austenitization temperature on microstructure and mechanical properties was studied by experiment and finite element methods. Temperature of steel plate has a significant effect on the temperature of hot stamping tools, and the temperature of punch rises at a faster speed than that of die. The austenitization temperature and time both have significant effects on the size of martensite, but have not obvious effects on the hardness.

Fluid dynamic method is applied to investigate the influence of size effect on bearing capacity and other performances. Reynolds equation is modified by adopting

velocity slip boundary condition．The sensitivity factors are used to make a quantitative and qualitative analysis. Simulation results show that size effect will affect bearing performances to a certain degree and the effect curve of size effect on bearing performances are given. The four maximum oil film pressures reduce with the increase of slip length.

Numerical Simulations shaping thin sheets of Stainless steel are becoming increasingly important in the design phase and processing into finished products. These simulations are often penalized by a too brief description of the plastic behavior and in particular the anisotropy of rolled sheet. This is why it is important to model the behavior of the structure during the formatting including stamping. A comparative study of the results found on the stainless steel and those identified on Aluminum and Titanium

11:45 - 12:05

MS11-ID199 Selection of the best strategy for

optimization of manufacturing chain for automotive parts made of multi-phase steels

MS2 - ID216 FEM Analysis of Rapid Cooling Process of low alloy steel for predicting microstructure and

its hardness

TOPIC3-ID226 The role of the evolutive elastic properties in

the performance of a sheet formed spring applied to multimedia car industry

66

Authors: Lukasz Rauch; Krzysztof Bzowski; Grzegorz Gorecki; Jan Kusiak; Maciej Pietrzyk Contact Author Organization: AGH University

of Science and Technology Poland

Authors: KwangO Lee; JiWoong Jang; Sukhwan Jung

Contact Author Organization: Pusan national university Korea, Republic Of

Authors: Joel Silva; João Faria; Rita Ferreir;a Pedro Bernardo; José Alves

Contact Author Organization: Universidade do Minho Portugal

Manufacturing of multi-phase steel products was analysed. Various thermal, mechanical and microstructural phenomena occur during production cycle and various models, including multiscale ones, are applied to simulate this cycle. Problem of optimization of the manufacturing chain with the required product properties introduced in the objective function, was considered. Various optimization techniques were used having in mind complexity of models and computing costs for each process in the chain. Sensitivity analysis was performed and the best optimization strategy was proposed

The numerical analysis which involves phase transformation needs mathematical modeling of thermo-metallo-mechanical couplings. In this study, finite element simulator has been developed to predict volume fraction of micro structure of low alloy steel and its hardness during rapid cooling process. Diffusional and non-diffusional kinetics for phase transformation are implemented into commercial finite element simulator AFDEX. To verify the developed simulator, Jominy tests and its FEM simulations has been conducted.And finally, the prediction model of hardness is presented.

The manufacturing process and the behavior of a spring manufactured from an aluminum sheet is described and investigated in this work considering the specifications for the in-service conditions. The spring is intended to be applied in car multimedia industry to replace bolted connections. Among others, are investigated the roles of the constitutive parameters and the hypothesis of evolutive elastic properties in the multi-step forming process and in working conditions.

12:05 - 13:30 Lunch

67


Dr O. Ghouati, Germany

Room A001

Chair: P.O. Bouchard

Room A002 Chair: Le Quilliec Co-Chair: Moreau

Room C001 Chair: J. Cesar de Sa

Room C002 Chair: ……

Co-Chair: ……

Room N101 Chair:

H.R. Kandikonda Chair:

H. Badreddine

14:30 - 14:50

MS2 - 261 Formability Analysis of Aluminum and

Magnesium Alloys Sheets by Using Crystal Plasticity Method

MS10 - ID110 Numerical investigation of manufacturing of

hollow pre-products by combining the processes of backward cup extrusion and

piercing

TOPIC4-ID227 Integrated model for the forming of glass

containers

TOPIC3-ID241 Evolution of mechanical characteristics for

Aluminum alloy Al 7075 (heat - treated) used in aeronautics, during maturation time and

precipitation

Authors: Zihan Li; Guowei Zhou; Dayong Li Weiqin Tang; Yinghong Peng

Contact Author Organization: Shanghai Jiao Tong University China

Authors: Robinson Henry ;Mathias Liewald; Contact Author Organization: Institute for

Metal Forming Technology Germany

Authors: Bruno Martin;s Ana Reis; Pedro Teixeira; Margarida Machado; Jaime

Rodrigues; J. César de Sá Contact Author Organization: INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering

Portugal

Authors: Amna ZNAIDI; Ahmed BEN MOHAMED; Rachid NASRI


Tunis, Tunisia El Manar Preparatory Engineering Institute, B.P. 1172, 3018 Tunis,

Tunisia Tunisia

The forming limit diagrams (FLDs) of sheet metals with FCC (AA5182-O) and HCP (AZ31B) crystal structure are calculated by combining visco-plastic self-consistent (VPSC) crystal plasticity method with the Marciniak-Kuczynski (M-K) model. The simulated FLDs after different paths of prestrain loading are also compared with the experimental ones. The predictions with current method can match the experimental FLDs of different structures well.

Hollow or tubular pre-products are used to meet lightweight requirements and to reduce production cost of cold formed components. To increase efficiency of manufacturing, a combined forming process was developed and is shortly presented in this paper: Manufacturing of hollow pre-products by combining the processes of backward cup extrusion and piercing. Disclosed work consists of numerical identification of significant process input variables, process outcomes and the process limits, as far as the combined forming process is concerned.

In this work an integrated model for all the process of glass forming of glass containers is presented. The model addresses press-and-blow and blow-and-blow procedures from the gob forming to the final product. Glass forming involves coupled thermal-mechanical physical phenomena, in which the material viscous flow is highly dependent on heat transfer which, in turn, is dependent changes of shape due to material flow. Numerical aspects associated with the model implementation and its validation with real formed products are discussed.

The aluminum alloy Al 7075 is a structurally hardened alloy and not by hardening. These mechanical properties are of particular microstructure obtained by thermo-mechanical treatments. Among other things, this is complicated microstructure which is responsible for the mechanical performance. The hardening phases are obtained by precipitation sequence that evolves with changing mechanical characteristics during the maturing time. Following heat treatment, carried out on this alloy, the evolution of the mechanical properties of Al7075 is very dependent on aging time parameter.

14:50 - 15:10

MS2 - 64 Simulation of the combined process "helical

rolling-pressing" in the software package Simufact. Forming

MS10 - ID115 Hardening law identification by micro

incremental sheet forming: a sensitivity study

TOPIC4-ID198 Mechanical behavior of fiber/matrix

interfaces in CFRP sheets subjected to plastic deformation

TOPIC3-ID270

Simulating Microstructure Evolution of Ultrasonic Welding of Battery Tabs

Authors: Abdrakhman Naizabekov; Sergey Lezhnev ;Evgeniy Panin; Alexandr Arbuz

Contact Author Organization: Rudny industrial institute Kazakhstan

Authors: Gemala Hapsari; Ramzi Ben Hmida; Fabrice Richard; Sébastien Thibaud; Pierrick

Malécot Contact Author Organization: DMA Femto-

ST/UBFC France

Authors: Ryuta Kamiya; Tetsuo Oya Contact Author Organization: Keio University

Japan

Authors: Hongtao Ding Contact Author Organization: University of

Iowa United States

68

This work is devoted to the simulation of new energy-saving combined process "helical rolling-pressing" in program Simufact Forming. During the simulation were studied the main parameters of stress-strain state and microstructure. The variation of the main technological parameters showed that the influence of the heating temperature of the workpiece plays a significant role in the degree of grain grinding. While the speed of deformation, allowed by the mill design limits, has no significant effect on the microstructure.

Micro incremental sheet forming is investigated as a method to validate the constitutive model of material. This optimization is based on a reverse identification scheme. Numerical simulations are performed and compared with experimental tests, in order to have a corresponding model of material. Within further investigation into the numerical model, a sensitivity study is done on some geometrical parameters (e.g. uncertainty about tool’s geometry or experimental test parameters) in order to evaluate the impact on the corresponding model of material.

The use of CFRP is increasing markedly, especially in aviation industry, but CFRP sheets cannot be formed by press-forming techniques due to its low ductility. Since the mechanical characteristics of CFRP is dominated by the microscale structure, it is possible to improve CFRP's formability under optimum material structure. Therefore, to improve formability, the interaction between the carbon fiber and the matrix has to be revealed. In this study, mesoscale analyses have been conducted by FEM with cohesive zone elements.

During ultrasonic welding, microstructural changes occur due to the coupled effects of severe plastic deformation (SPD) and frictional heat generation. Theory of the microstructural evolution was for the first time hypothesized as three regimes, namely SPD, dynamic recrystallization (DRX) and grain growth according to the material thermomechanical loading conditions. A 3D metallo-thermo-mechanically coupled model was developed in DEFORM to model the temperature-dependent mechanical deformation and microstructural evolution during the ultrasonic spot welding process.

15:10 - 15:30 MS2 - 151

Analysis of micro hydro-mechanical deep drawing using finite element method

MS10 - ID252 A new optimization procedure for the

accurate characterization of thermal phase transformation curves based on controlled

quenching experiments

TOPIC4-ID172 Prediction of acoustic foam characteristics by

numerical simulation of polyurethane foaming process

TOPIC3-ID116 Material flow analysis in dissimilar Friction Stir Welding of AA2024 and Ti6Al4V butt and lap

joints

Authors: Xiaoguang Ma; Jingwei Zhao; Zhengyi Jiang; Wei Du; Xin Zhang; Laizhu

Jiang Contact Author Organization: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong

Australia

Authors: Maurice Peterli; Minh-Trung Truong; Niko Manopulo; Hora Pavel

Contact Author Organization: Institute of Virtual Manufacturing ETH Zurich

Switzerland

Authors: Hichem ABDESSALAM; Boussad ABBÈS; Yuming LI; YingQiao GUO; Elvis

KWASSI; Jean-Luc ROMAIN Contact Author Organization: GRESPI -

University of Reims Champagne-Ardenne France

Authors: Gianluca Buffa; Michele De Lisi; Antonio Barcellona; Livan Fratini

Contact Author Organization: University of Palermo Italy

A numerical model was established to investigate the micro hydro-mechanical deep drawing process of austenitic stainless steel 304 foil. Due to the miniaturisation of the specimen size, the effect of grain size, gap distance and radial pressure during drawing process could be prominent. The results indicate that the appropriate radial pressure and gap distance could improve the limit drawing ratio (LDR) of manufactured cylindrical cups by reducing the friction resistance.

Precise hardness and phase prediction for quenched steel with the fe-method requires material data, which is usually obtained from measured CCT-diagrams. However, most software packages require TTT-diagrams, which can be calculated from the chemical composition of the material or converted from existing CCT-diagrams. With both methods the numerical prediction often results in deviations to reality. A new optimization method can improve the accuracy of phase content and hardness prediction by optimizing the TTT-diagram with measured data of controlled quenching experiments.

This work aims to model and to simulate the polyurethane foaming process. Models taking into account the two main chemical reactions of the formation of polyurethane, the exothermic effect of these reactions as well as the thermo-rheo-kinetic coupling characterizing this process are proposed and implemented in the software NOGRID-points based on a meshless method (FPM). We also propose a prediction of some acoustic foam characteristics based on the results of the numerical simulation of the foaming process and semi-phenomenological models.

The complex material flow occurring during the weld of dissimilar AA2024 to Ti6Al4V butt and lap joints was highlighted through a dedicated numerical model able to take into account the effects of the different materials as wells as the phase transformation of the used titanium alloy.

15:30 -15:50

MS2 - 165 Material model for dynamic recrystallization

of Mg-8Al-0.5Zn alloy under elevated forming temperature

TOPIC4-ID125 Crystallization Kinetics Numerical Simulation of Semi-Crystalline Polymer: Application to

Thermoforming Process

Authors: Kwanghyun Ahn; Jonghun Yoon;

Contact Author Organization: Hanyang University Korea, Republic Of

Authors: Mustapha Ziane; Pierre Marquette; Yann Duplessis Kergomard

Contact Author Organization: ESI Group France

69

Even though there are substantial progresses on the establishment in terms of the DRX principles and evolution with the view point of the materials science, an appropriate flow curve modeling for the finite element analysis has been deficient to take into consideration of softening behavior. This paper mainly concerns the material modeling of Mg alloy at the elevated forming temperature in terms of thermomechanical flow curves, which enables implementation of flow curve softening in the finite element analysis, efficiently.

Recently, composites based on thermoplastic resins have emerged for structural applications. Although they might not completely replace thermosets, those materials offer potential advantages for demanding applications. During thermoforming process, the cooling rate of the material is the primary process variable as it governs the crystallization of the matrix. A crystallization model derived from Nakamura’s work has been implemented into the thermoforming finite element code PAM-FORM. Coupled with heat transfer equation, it permits a good description of the crystallization event.


Room A001

Chair: E. Rouhaud

Room A002 Chair:

C. Labergere

Room C001 Chair:

A. Rassineux Co-Chair: E. Cueto

Room C002 Chair:

F. Barlat

Room N101 Chair: ……

Co-Chair: ……

16:30 - 16:50 MS11-ID139

From manufacturing processes down to in-use structural analyses

MS3 - ID24 Use of Gleeble max-strain unit for study of

damage development in hot forging

MS7 - ID34 Effects of Element Formulation on Pipe

Bending Simulation

MS5 - ID246 On Spallation of Oxide Scale in Low Carbon

Steel during Bending

Authors: Pierre-Olivier Bouchard


Authors: Hubert Geijselaers; Chao Wang ;Alexis Miroux; Viktor Recina; Ton van den

Boogaard Contact Author Organization: Universiteit

Twente Netherlands

Authors: Satoshi ISHIKAWA; Yoshihiro ISHIKAWA

Contact Author Organization: IDAJ Co., Ltd. Japan

Authors: JAE MIN LEE; WOO RAM NOH; CHAN YANG KIM; DEUK JUNG KIM; MYOUNG

GYU LEE Contact Author Organization: Korea

University Korea; Korea, Republic Of.

In order to accelerate the design and production of new products using enhanced materials, it is essential to improve the modeling of materials behavior within a whole chain of simulations starting from the early stages of materials transformation and going through cold and hot forming stages, heat and surface treatments, joining steps and finally ending up with the prediction of components behavior under realistic in-use loading conditions. The overall strategy and various applications are presented and future challenges are discussed.

The standard Gleeble max-strain unit has been modified to also allow axial elongation. Analyses indicate that both positive and negative hydrostatic stresses can be achieved during forging simulations, depending on the amount of strain per hit. This opens the way to the study of the effect of hydrostatic stress on development of damage and healing. In this contribution we will show results of finite element simulations of this test at different settings. Experiments seem to confirm these results.

The exhaust manifolds of steel pipe are formed with multiple bending operations. The pipe bending process is complicated and the forming conditions such as controls of pressure are significant. Failure shapes like rupture or wrinkling were found in some load conditions. Therefore, this paper presents the formulation of several finite elements for simulating and optimizing pipe bending process using FE-explicit method. The analyzed results were compared with the experimental thickness and the performance and accuracy were examined.

Spallation of oxide scale was analyzed by FE simulations. Three factors contributing to the interface fracture, ie., thermal expansion mismatch, stress relaxation and the geometry of interface, were investigated. Particularly, stresses near interface were analyzed. Thermal and mechanical properties of substrate and oxide scale were measured, and fracture property of interface to describe the spallation behavior was inversely determined by the scratch analysis. The effects of the interface geometry and oxide thickness on the spallation during bending will be discussed

16:50 - 17:10

MS6-ID205 Residual stresses of a magnesium alloy

(AZ31) welded by the friction stir welding processes

MS3 - ID28 Ductile failure analysis of high strength steel

in hot forming process based on micromechanical damage model

MS7 - ID58 The use of geometric scale in the simulation

of metal forming by the explicit-dynamic finite element method

MS5 - ID208 Fracture prediction with a material model based on stress-rate dependency related

with non-associated flow rule

70

Authors: Afia Kouadri-Henni; Laurent Barrallier; Riad Badji

Contact Author Organization: INSA of Rennes France

Authors: Wenquan Liu; Liang Ying; Dantong Wang; Ping Hu

Contact Author Organization: Dalian University of Technology China

Authors: Ècio Naves Duarte; Peterson Silva da Silva; Sonia Aparecida Goulart Oliveira;

Rafael Weyler; Fabio Raffael Felice Contact Author Organization: IFSP Brazil

Authors: Tetsuo Oya; Jun Yanagimoto; Koichi Ito; Gen Uemura; Naomichi Mori

Contact Author Organization: Keio University Japan

This study was to evaluate the residual stresses of FSW welding magnesium alloys (AZ31). The results show that the FSW processes lead to the formation of several distinct zones with differing mechanichal properties. The residual stresses evolution have been explained by the heterogeneous modifications of the micro structure, in particular a marked decrease in the grain sizes, a high modification of crystallography texture and also by the different anisotropic properties resulting from plasticity in the case of the FSW process.

The damage evolution of high strength steel at elevated temperature is investigated by using the Gurson-Tvergaard-Needleman (GTN) model. A hybrid method integrated thermal tensile test and numerical technique is employed to identify the damage parameters. The analysis results show that the damage parameters are different at different temperature. Furthermore, the calibrated damage parameters are implemented to simulate a bulging forming at elevated temperature. The experimental results show the availability of GTN damage model in analyzing sheet formability in hot forming.

Aiming to find out the optimum conditions in the simulations of sheet metal forming, by mean of finite element analysis and running softwares with explicit dinamic solutions, this work studied the conditions in which the employment of scaled models could be useful in order to reduce the costs in terms of computational effort. The used methodology allowed to better understand the limits in which this approach is valid, in order to get the computational cost decreasing.

The authors have developed a novel material model based on non-associated flow rule and stress-rate dependent constitutive law, where the yield function and the plastic potential function are defined with different arbitrary-order functions. Advantages of this model are for anisotropic sheet metals and large deformation leading to fracture. In this study, effects of the order of the yield function and the plastic potential function on the fracture limit prediction have been numerically investigated.

17:10 - 17:30

MS6-ID136 A comparison of two modeling approaches

for the prediction of residual stresses caused by the welding process

MS3 Keynote ID27 (30 mn)

Biaxial experiments and numerical

analyses on damage prediction in metal forming processes

Authors: Michael Brünig; Steffen Gerke;

Marco Schmidt Contact Author Organization: University BW

Munich Germany An anisotropic damage and failure model based on kinematic definition of damage

tensors is discussed. Different damage criteria formulated in stress space are proposed based on experiments and

corresponding numerical simulations. The approach is based on various tests with

uniaxially loaded specimens as well as on series of new experiments with two-

dimensionally loaded specimens. Corresponding numerical simulations of these tests show that they cover a wide range of stress states appearing in metal

forming processes.

MS7 - ID140 Hybrid Parallel multigrid preconditioning

method for metal forming simulation

MS5 - ID237 Induced plastic anisotropy fully coupled with

ductile damage under finite strains

Authors: Haifa SALLEM; Thomas SAYET; Eric FEULVARCH; Jean Baptiste Leblond; Jean-

Michel Bergheau Contact Author Organization: Univ.Lyon-

ENISE-LTDS France

Authors: Katia Mocellin; Frédéric Vi; Hugues Digonnet; Lionel Fourment Etienne Perchat


Authors: Zhenming Yue; Houssem Badreddine; Khemais Saanouni

Contact Author Organization: School of Mechanical and Electrical Engineering, Shandong University at Weihai China

The aim of this work is to present and compare two numerical modeling approaches for the simulation of residual stresses caused by the welding process. In the first approach, the coupling of the different material states is ensured using an ALE method. The molten pool and the fluid flows are modeled. However in the second approach, numerical simulations were carried out in the context of Lagrangian approach where the fluid flows in the weld pool are not accounted for

Multigrid methods are known for their asymptotic efficiency when solving large linear systems. The developed hybrid method is based on both a geometric approach, by generating different levels of meshes, and on an algebraic formulation by using the Galerkin approach to generate coarse matrices. Generation of grids, operators and matrices is fully automatic and compatible with remeshings and parallel computing. Resulting multigrid solver is integrated within the FORGE® package and its efficiency is validated on several industrial bulk forming problems.

Fully coupled anisotropic constitutive equations with mixed nonlinear hardening and isotropic ductile damage, is improved by considering the distortion of the yield surfaces. A convenient “distortion” deviatoric stress tensor is used in both yield criterion and plastic potential instead of the usual classical deviatoric stress. A parametric study is conducted under simple loading paths in order to explore the capabilities of the model in describing the yield surface distorsion. Comparisons with experimental results on aluminum alloy are also given.

17:30 - 17:50

MS6-ID213 Numerical Evaluation and Extrapolation of Creep Curves by "Strain Acceleration and

Transition Objective Index"

MS7 - ID207 A new shell element taking thickness-

stretchability into account for mechanics-based springback compensation system

Authors: Hiroyuki Sato

Contact Author Organization: Hirosaki University Japan

Authors: Hibiki Arashiyama; Tetsuo Oya Contact Author Organization: Keio University

Japan

71

Method of quantitative evaluation of shape of a creep curve and extrapolation of creep

curve based on the concept of “SATO-Index” is presented. Shape of a creep curve can be quantitatively evaluated by the index, and a

differential equation with a set of four independent characteristic values represents

an entire creep curve. One characteristic value reflects strain dependence of strain-rate. Typical applications on simple alloys

such as solid solutions and some engineering alloys are presented.

To reduce springback, coining process is often applied in sheet metal forming. But,the

finite element method with conventional shell element can’t formulate this process

because of plane stress condition. Therefore, in this study, a new shell element which has

extra nodes called pseudo-nodes to calculate through-thickness stress is developed. Using this element, a mechanics-based springback compensation system has been constructed

and tested.

17:50 - 18:10

MS6-ID240 Evolution of the mechanical properties of

2024 aluminum alloys (heat-treated) used in aeronautics

MS3-ID31 Multi Scale Models for Flexure Deformation

in Sheet Metal Forming

MS7 - ID224 A HIGH-ORDER TIME INTEGRATION

TECHNIQUE FOR THE MODELING OF FSW PROCESSES

Authors: Ahmed Ben Mohamed; Amna ZNAIDI; Rachid NASRI


Tunis. Tunisia

Authors: EDMONDO DI PASQUALE Contact Author Organization: SIMTECH - UNIVERSITE DE VALENCIENNES France

Authors: Narges Dialami; Michele Chiumenti; Miguel Cervera; Carlos Agelet de Saracibar Contact Author Organization: CIMNE Spain

The mechanical properties of Aluminum alloy Al2024 are of particular microstructure

obtained by thermo-mechanical treatments. The hardening phases are obtained by

precipitation sequence that evolves with changing mechanical characteristics during

the maturing time. Following heat treatment, the evolution of the mechanical properties of

Al2024 is very dependent on aging time parameter. An experimental test of traction

in different companion of Al2024 treated (quenching) is our first database to fully describe the kinetics of precipitation and

changes in the mechanical properties.

This paper focuses on the effect of material flow over die radius and the corresponding cycle of deformation. First, we describe an

original model for the prediction of residual plastic deformation and stresses in the blank section. This model, working on a

scale ten times smaller than the element size, has been implemented in SIMEX, one-step sheet metal forming simulation code,

leading to a great improvement of the accuracy of the solution. Finally, we discuss

springback applications.

A coupled thermo-mechanical framework is adopted to analyze Friction stir welding (FSW) problem. Use of first order time

integration technique for the solution of the transient problem is not advantageous, as it obliges the modeler to use small time-steps to deal with high rotational speed during the

process. In this work, a high-order time integration method is considered for both

transient and convective terms. This allows the use of larger time-steps and speeding up the simulation while increasing the accuracy.

72

PRACTICAL INFORMATION

Map of Troyes __________________ p. 73

Map of Troyes City Center ________ p. 74

Lunches _______________________ p. 75

Champagne Party _______________ p. 76

Banquet (Gala Dinner) ___________ p. 77

Social Program _________________ p. 78

Factory Outlets Information ______ p. 80

Participants Index _______________p. 82

73

Map of Troyes

For interactive map of Troyes, go to http://carte.soyezsurpris.fr/en/?locale=en

http://carte.soyezsurpris.fr/en/?locale=en

74

Map of Troyes City Centre (Centre Ville)

For interactive map of Troyes, go to http://carte.soyezsurpris.fr/en/?locale=en

http://carte.soyezsurpris.fr/en/?locale=en

75

Lunches Date : July 8th, 9th, 10th, 2015

Hour : Noon

Place : The University Restaurant (see map)

Important: Please bring your LUNCH TICKETS that have been given to you. You cannot exchange

your lunch tickets of one particular day for another day.

76

Champagne

Tasting Party

Date : Monday, July 4th 2016

Hour : 20:00 – 22:00

Place : The Tools and Trade

Museum/ Maison de l’Outil et

de la Pensée Ouvrière (see map)

About The Tools and Trade Museum After the 1524 fire, Jean Mauroy, the inspector of aids and tallages for the kingdom, had the Hôtel de l’Aigle built and lived there with his wife Loyse de Pleurre. It then was named the Hôtel de Mauroy. At their death, they bequeathed their estate to the founding of an orphanage (1582), directed by the Friars of Trinity.

In 1746, the home received the first power looms and became the largest manufacturer of stocking knitting machines in the city. In 1789, it was turned into a garrison and then a mill and later became the first listed historical monument in the Aube department. From 1920 to 1962, it housed a print shop, then it was bought by the City of Troyes in 1966 and entrusted to the Association Ouvrière des Compagnons du Devoir du Tour de France for restoration.

Starting at this time, collections of tools, books and histories were stored there, donated by the Révérend Paul Feller, a Jesuit and teacher seeking to reform teaching methods.

(1913-1979). Inaugurated in 1974, the Maison de l’Outil et de la Pensée ouvrière (Tools and Trade Museum), named thus by P. Feller, exhibited in this superb setting of the Hôtel de Mauroy an incredible collection of more than 10,000 objects and tools used in traditional trades. The museum explains the use and symbolism of the creations in stone, wood, iron and glass, designed and made by the highly-knowledgeable creators and artisans.

The ambition of the museum is to contribute to the interaction between man and matter, between manual and non-manual, between thought and tools. Used, engraved, personalized and transformed, these tools will always be animated objects, reflecting the memory of their worker companions. It is an ode to manual labour and creation.

The Centre de ressource has more than 33,000 books and magazines containing invaluable worker and technical material. (www.mopo3.com)

77

Banquet

Date : Tuesday, July 5th 2015 Hour : 20:00 – 23:00 Place : Espace Champagne at the Centre de Congrès de l’Aube Address : Centre de Congrès de l’Aube - Conseil Général de l’Aube. 2 rue, Pierre-Labonde. 10026 Troyes Cedex. France The Centre de Congrès is located in the Troyes City Center Area, around 4 minutes walking distance from the Troyes Townhall for example (see map below).

Gala dinner

Attribution of NUMIFORM 2016’s Zienkiewicz Award Announcement of the next NUMIFORM in 2019

Entertainments: Music by KARPE DIEM & Close-up Magic Show

Centre de Congrès Magic show during banquet Centre de Congrès

78

Social Program on Thursday, July 7th 2016 On the last day of the conference (Thursday, July 7th), you will participate in the social program prepared by the conference organizer. Please present the social program ticket to the person in charge in each shuttle on the day of the program. If you wish to cancel your participation to the Social Program, please return the ticket at the welcome desk. The social program is organized into two visits:

1. Visit to the wine and champagne producer: The Barfontarc Houses: Awaken your taste buds and your mind while getting acquainted with the art of champagne wine tasting! The De Barfontarc House fashioned in the image of their winemakers, country men and women embodying the character and originality of their land. About a hundred hectares devoted to sharing expertise and harvests, highlighting the specific character, the authentic spirit and true identity of De Barfontarc champagne.

With extreme precision and perfect knowledge of the terroir the oenologists of our House have composed the harmony of each and every vintage wine by pressing the juice out of each bunch of grapes. The De Barfontarc House invites you to discover the fruit of their know-how through a guided tour of the cellars.

Champagne De Barfontarc - 18 rue de Bar-Sur-Aube, 10200 BAROVILLE Phone : + 33 (0)3 25 27 07 09 Fax : + 33 (0)3 25 27 23 00

Website: http://www.champagne-barfontarc.com/en/homepage

2. A Guided Tour to The Charles de Gaulle Memorial:

The Genesis of the Memorial Much more than a traditional presentation of the man who launched the "Appeal of the 18 June" or of the first President of the 5th French Republic, the Memorial constitutes a true rendezvous with 20th century history and an encounter with Charles de Gaulle.

Considered as the pedestal of the Cross of Lorraine, the building takes in the character of Charles de Gaulle at the heart of modernity and in the landscapes of Colombey-les-deux-églises, for which he had particular affection. It was in this village that he decided to settle with his family in 1934, and it was here that he made history by greeting the German Chancellor Konrad Adenauer.

His family home, La Boisserie has been open to the public for several decades, but Colombey-les-deux églises has to be visited to gain a better understanding of his character.

The Charles de Gaulle Memorial, by fulfilling this role, adds to the remembrance of this most illustrious of Frenchmen.

Mémorial Charles de Gaulle - 52330 Colombey-les-deux-églises - FRANCE Tel. +33(0)3.25.30.90.80 - Fax +33(0)3.25.30.90.99 Website: http://en.memorial-charlesdegaulle.fr/

http://www.champagne-barfontarc.com/en/homepage

http://en.memorial-charlesdegaulle.fr/

79

Social Program's Itinerary Participants will be divided into two groups (two shuttles), the itineraries are as following:

1. Shuttle 1 Shuttle 1 will pick up participants at their hotels as usual early in the morning, please see the schedule below:

Circuit of Shuttle 1 for Thursday Morning Pick-up Hours

Shuttle will wait in front of Hotel Kyriad 08:15

Parking Hotel Ibis/Mercure 08:25

Public Bus Stop BEURNONVILLE 08:30

Arrive at UTT parking West 08:45

09:00 > depart from UTT parking West 10:30 - 12:00 -> visits the Charles de Gaulle Memorial 12:30 - 14:00 -> Lunch at the Barfontarc House 14:00 - 15:30 -> visits the Barfontarc House Return to Troyes (Train Station and then Hotels) at around 17:00

2. Shuttle 2 Shuttle 2 will pick up participants at their hotels as usual early in the morning, please see the schedule below:

09:15 -> depart from UTT parking West 10:30 - 12:00 -> visits the Barfontarc House 12:15 - 13:45 -> Lunch at the Barfontarc House 14:30 - 16:00 -> visits the Charles de Gaulle Memorial Return to Troyes (Train Station and then Hotels) at around 17:30

Important:

After checking out from hotels in the morning, participants may bring and store their luggage in the shuttle compartment (please remember to retrieve your luggage at the end of the program when you arrive back to Troyes).

Participants may choose which shuttle to go back to Troyes in function with their train schedule (for those who take a train). Shuttle 1 will arrive back to Troyes (train station then hotels) at around 17:00, meanwhile Shuttle 2 will arrive a bit later around 17:30.

Participations to social program is limited to 114 persons only on a first register-first served basis.

Circuit of Shuttle 2 for Thursday Morning Pick-up Hours

Hotel de la Gare 08:15

Public Bus Stop HOTEL DE VILLE 08:25

Arrive at UTT parking West 08:45

80

Information regarding Troyes City Center and Factory Outlets during the Summer Sale Period

Participants are free to visit the city center of Troyes and/or to do shopping in the factory outlets to take advantage

during the summer sale period. The factory outlets coupons are available at the front desk of the conference situated in

Building M at UTT. You should exchange this coupon at the front desk (in French: Accueil) of each factory outlets

(Marques Avenue or McArthurGlen) to get a discount voucher.

Troyes City Center Tour Participants are free to visit the city center of Troyes, a brochure of “Troyes and Surroundings” will be provided to each

participant, and a limited special brochure concerning only the Troyes City Center including recommended visit paths

will be provided for those who wish to visit the city center on Saturday. These limited brochures will be given to

participants on a first-come, first-served basis (by request at the front desk on the conference days).

Shopping! The "factory shops" were born in TROYES in the 1960s, to sell off local manufacturers' ends of lines. At first only open to factory staff, little by little they were opened to the general public. Let's remind ourselves of some of Troyes great brands: LACOSTE, DD, BABYGRO, ABSORBA, PETIT BATEAU, GIL, MARINER, VITOS... Today, the fame of the "Factory Shops" and the know-how of our Department's manufacturers is second to none. Thousands of visitors from all regions flock to our city to snap up the bargains available: reductions offered vary from 30 to 70% and the number of visitors to these shops is estimated as being close to three million each year. The greatest international brands are now represented. They make TROYES a major centre for Textiles and Clothing, and the true Capital for "factory shops" for personal outfitting. You can thus dress in "chic", "fashion" or "sport" styles according to your needs, with footwear, lingerie and ready to wear available, as well as household linen, etc... in over one hundred shops.

Visit the websites of the different shops. 1. Marques Avenue Troyes

For more information go to http://www.marquesavenue.com, or scan this QR code on the right with your smartphone (QR Code Reader application is needed in your smartphone).

2. McArthurGlen Troyes

For more information go to http://www.mcarthurglen.fr , or

scan this QR code on the right with your smartphone

(QR Code Reader application is needed in your smartphone).

3. MarquesCity

For more information go to http://www.marquescity.com, or

scan this QR code on the right with your smartphone

(QR Code Reader application is needed in your smartphone).

http://www.marquesavenue.com/

http://www.mcarthurglen.fr/destockage-en/troyes/troyes.php

http://www.marquescity.com/boutique_us/index_travaux.cfm?code_lg=lg_us

http://www.marquesavenue.com/Troyes-Mode

http://marquescity.fr/

http://www.mcarthurglen.com/

81

THE NEAREST factory outlet to the University of Technology of Troyes is MARQUES AVENUE TROYES, it is located at 114, boulevard de Dijon, 10800, Saint-Julien-les-Villas, and it is just a 19 minutes-walk from UTT (see the map below). The two farther factory outlets are both located in Pont-Sainte-Marie:

McArthurGlen Troyes. Address: Voie du Bois, 10150 Pont-Sainte-Marie Marques City. Address : 21 rue Marc Verdier, 10150 Pont-Sainte-Marie.

82

Participants Index Last Name First Name Organization Country

Paper ID

ABBES Boussad Université de Reims Champagne-Ardenne France

ABDESSALAM Hichem Université de Reims Champagne-Ardenne France 172

ABEDINI Armin University of Waterloo Canada 177

ABU-FARHA Fadi Clemson University United States

ADRAGNA Pierre-Antoine

UTT France

AGASSANT Jean-François

MINES ParisTech/CEMEF France 54

ALEXANDRE Schneider URCA - CReSTIC France 149

ALTAN Taylan The Ohio State University USA 251

ARASHIYAMA Hibiki Keio university Japan 207

ARAUJO Manuel University of Minho Portugal 209

AZINPOUR Erfan FEUP - Faculty of Engineering University of Porto Portugal 142, 100

AZIZOGLU Yagiz Dalarna University Sweden 121

BARLAT Frederic POSTECH Republic of

Korea 1

BARRIERE Thierry institut femto-st France 185, 184

BARROS Pedro Daniel University of Coimbra Portugal 171

BARTNICKI Jaroslaw Lublin University of Technology Poland 104

BATHE Klaus-Jurgen Massachusetts Institute of Technology United States

BEAUCHESNE Erwan Altair Engineering France France

BECKER Christoph IVP ETH Zurich Switzerland 175

BELINGARDI Giovanni Politecnico di Torino Italia 71

BELLET Michel Mines ParisTech - CEMEF France

BELLOY Philippe UTT France

BEN BETTAIEB Mohamed ENSAM - LEM3 France 67

BEN HMIDA Ramzi FEMTO-ST Institute, UBFC/CNRS-UMR6174/UFC/ENSMM/UTBM, Department of Applied Mechanics, Besançon, France

France 93

BERGHEAU Jean Michel Univ.Lyon-ENISE-LTDS France

BIBA Nikolay MICAS Simulations Ltd United Kingdom

BOUCHARD Pierre-Olivier

CEMEF - Mines ParisTech France 127, 139

BOURAS Salaheddine ENIM Tunisia

BREITKOPF Piotr UTC France

BRUNIG Michael University BW Munich Germany 27

CAILLOT Lydie UTT France

CANALES Diego Ecole Centrale de Nantes France 23

CANALES Cristian University of Liège Belgium 161

CAO Jian Northwestern University United States 211

CARDIFF Philip University College Dublin Ireland

CARIN Muriel Université de Bretagne-Sud - IRDL France 91

CARRETTA Yves University of Liège Belgium 159

CASTIGLIONE Giovanni Italdesign Giugiaro Italy 71

CESAR DE SA Jose FEUP- Faculty of Engineering, University of Porto Portugal

CHADHA Kanwal ETS Montreal Canada 262

CHARLES Alexandre Safran SA France

83

CHEN Qiang cemef France 105

CHENOT Jean-Loup TRANSVALOR France 42

CHUGREEV Alexander Institute of Forming Technology and Machines Germany 92

CIANCIO Claudio University of Calabria Italy 129

COCHET Julien Univ Bretagne Sud France 52

CUETO Elias Universidad de Zaragoza Spain

DANIEL Laurent UTT France

DARVIZEH Rooholamin The University of Manchester UK 212

DE JAEGER Peter NV Bekaert SA Belgium

DEREIMS Arnaud ESI Group France

DI PASQUALE Edmondo SIMTECH France 31

DIAMANTOPOULOU Evangelia UTT/LASMIS France 55

DILAN Rasim Askin ASELSAN A.S. Turkey 103

DONGJU Chen Beijing University of Technology China

DUFORT Laurent ESI Group France

DUGOURD Isabelle ESI GROUP France

DUVAL Jean-Louis ESI GROUP France

ENOKI Shinichi National College of Technology, Nara College Japan 145

EVANS Andrew Swansea University Bay Campus United Kingdom 68

FAVIER Veronique Arts et Metiers ParisTech CNRS France 117

FEREC Julien Université de Bretagne-Sud France 95

FOREST Samuel Mines ParisTech CNRS France 143

FOURMENT Lionel MINES ParisTech, PSL Research University France 59

FRANCOIS Guillaume TRANSVALOR France 114

FRANCOIS Manuel UTT France

FUKUSHIMA Hideki ESI GROUP France

GAGLIARDI Francesco University of Calabria Italia 131

GAIKWAD Ajitkumar Bharat Forge Ltd. India 16

GAN Tian Shanghai Jiao Tong University China

GARDIN Pascal ArcelorMittal France

GARNIER Claude UTT France

GEIJSELAERS Hubert Universiteit Twente Netherlands 24

GELIN Jean-Claude institut femto-st france 184, 185

GHOUATI Omar Ford-Werke GmbH Germany

GIRAUD-MOREAU Laurence UTT France 254

GOMES Romeu Institut Clément Ader - Mines-Albi France 126

GOMEZ VAZQUEZ Rodrigo TU Wien Austria 40

GRABOs Andrzej Polmotors Sp.z o.o. Poland

GUELORGET Bruno UTT France

GUO Yifeng Insititute of metal research, Chinese academy of sciences China 47

GUTKNECHT Florian TU Dortmund - IUL Germany 99

HAPSARI Gemala FEMTO-ST France 115

HE Bin School of Automotive Engineering, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology

China 6

HENRY Robinson Institute for Metal Forming Technology/ University of Stuttgart Germany 110

HIEBELER Jan thyssenkrupp Steel Europe AG Germany

84

HORA Pavel ETH Zurich, Institute of virtual Manufacturing Switzerland 122

HU Yang FCA Group LLC United States 22

HU Ping Dalian University of Technology Province, P.R.

China 163

ILIN Dmitrii Mines-ParisTech, PSL-Research University, CEMEF Centre de mise en forme des materiaux, CNRS UMR 7635

France 35

IONCE Marcus HTL Donaustadt Austria 118

IORIO Lorenzo POLITECNICO DI MILANO, DIP. MECCANICA Italy 162

ISHIKAWA Satoshi IDAJ Japan 34

ISSACK FARAH Moustapha University of Djibouti Djibouti 76

JACOT Alain ESI Group Suisse

JI Hongchao University of Science and Technology Beijing China 37

JIANYANG Zhang Institute of Metal Research, Chinese Academy of Sciences China 271

JOHNSON Harley University of Illinois at Urbana-Champaign United States 215

JUNG Eun Young Kyung chang Industrial Korea 259

KADKHODAYAN Mehran Ferdowsi University of Mashhad Iran 5

KAI Zhang utt France

KAMIYA Ryuta Japan Japan 198

KANDIKONDA Hans Raj Dayalbagh Educational Institute India 61

KE Cao Shanghai Jiao Tong university France 17

KHOEI Ar Sharif University of Technology Iran 210

KIM Ji Hoon Pusan National University Korea, South 250

KIM Hong Kyo Pusan National University Korea, South 80

KIM Jeong Pusan National University Korea, South

KIM Seho DAEGU UNIVERSITY Korea, South 235

KOBAYASHI Masatoshi Honda R&D Co., Ltd. Japan

KOHAR Christopher University of Waterloo Canada 221

KOOWATTANASUCHAT Pramote Khon Kaen University Thailand 132

KORKOLIS Yannis University of New Hampshire United States 180

KOUADRI-HENNI Afia INSA of Rennes France 205, 191

KUSIAK Jan AGH University of Science and Technology Poland 144

KUSTERS Niklas TU Dresden / IF / FF Germany 46

LABERGERE Carl UTT, ICD/LASMIS France

LACROIX Remy ESI FRANCE FRANCE 1

LAFON Pascal University of Technology of Troyes France 63

LAGAZA Honoré ENSAM - LEM3 France 75

LANDKAMMER Philipp FAU Erlangen, Institute of Applied Mechanics Germany 263

LAWRJANIEC Didier Ascométal CREAS France

LEE Jaemin Korea university Korea, South 246

LEE Sung Min Kyung chang Korea, South 230

LI Dayong Shanghai Jiaotong University China 261

LI Yuming Université de Reims, Champagne Ardenne France

LI Enying Central South University of Forestry and Technology China

LIHUA Dong Beijing University of Technology China

LIU Weijie UTT France 72

LIU Yang Dalian University of Technology China 260

LIU Shibo INSA de Rennes France 203

85

LOGE Roland EPFL Switzerland

LONGRAIS Pascal ESI Group France

LOUKAIDES Evripides University of Cambridge United Kingdom 49

LUC Penazzi Institut Clément Ader - Mines Albi France 126

LUO Liang University of Wollongong Australia 25

MADEJ Lukasz AGH University of Science and Technology Polska 48

MAIER Catalina Dunarea de Jos University of Galati Romania 156

MALECOT Pierrick ENSMM FEMTO-ST France

MANACH Pierre-Yves Université Bretagne Sud France 52

MANSOURI Hamid fidec co(www.fidec.ir) Iran 4

MARQUETTE Pierre ESI Group France 87, 125

MARTINS Bruno Faculty of Engineering University of Porto Portugal 227

MARTINS João University of Coimbra Portugal 170

MASSONI Elisabeth CEMEF MINES ParisTech FRANCE

MEGAHED Mustafa ESI Group Germany 123

MEISSNER Robert Institute for Metal Forming Technology Germany 141

MENG Liang UTC France 264

MILES Michael Brigham Young University United States 135

MISIUN Grzegorz Universiteit Twente Netherlands 244

MOCELLIN Katia CEMEF -Mines ParisTech France 140

MONTMITONNET Pierre MINES ParisTech France 62

MULLER Simon Karlsruhe University of Applied Science Germany 12

NAIZABEKOV Abdrakhman Rudny industrial institute Kazakhstan

NASRI MOHAJERI Ali FIDEC co(www.fidec.ir) Iran

NAVARRO Aitor Tubacex Innovation Spain 70

NETO Diogo University of Coimbra Portugal 148

NEUWIRTH Nino HTL Donaustadt Austria 118

OLIVIER Debordes CNRS France

OUSSAMA Mimouni Blida university Algeria 191

OYA Tetsuo Keio University Japan 208

PALUMBO Gianfranco Politecnico di Bari (DMMM) Italy 146

PANICAUD Benoit UTT France

PARK Hyeong Gyu Pusan National University Korea, South 179

PATER Zbigniew Lublin University of Technology Poland 3

PEPELNJAK Tomaz Faculty of Mechanical Engineering Ljubljana Slovenia 155

PESIN Alexander Nosov Magnitogorsk State Technical University Russia 193, 194

PETERLI Maurice IVP ETH ZURICH Switzerland 252

PICART Philippe University of Franche-Comté France

PIETRZYK Maciej AGH University of Science and Technology Poland 199

PILVIN Philippe Université de Bretagne-Sud France 269

POLYCHRONOPOULOU Danai CEMEF - MINES ParisTech France 32

PUSTOVOYTOV Denis Nosov Magnitogorsk State Technical University Russia 192

QIN Jisheng NTNU Norway 173

QU Feijun University of Wollongong Australia 45

RAEMY Christian IVP, ETH Zurich Switzerland 267

RASSINEUX Alain UTC France

86

RAUCH Lukasz AGH w Krakowie Poland 158

REN Sicong ARMINES MINES PARISTECH France 90

RIGAUD Lydia UTT France

RIPERT Ugo TRANSVALOR France 97

ROMAIN Boulais-Sinou

CEMEF Mines ParisTech France 36

ROUHAUD Emmanuelle UTT France

ROUSSELIER Gilles Mines ParisTech France 33

ROUX Jean-Christophe

Univ Lyon - ENISE - LTDS France 56

SAAD Ali TRANSVALOR France 43

SAANOUNI Khemais UTT France

SALLEM Haifa Univ.Lyon-ENISE-LTDS France 136

SAPANATHAN Thaneshan Université de Technologie de Compiègne France 8

SBAYTI Manel National Engineering school of Monastir Tunisie 202

SCHMALTZ Stefan Schaeffler Technology AG & Co. KG Germany

SCHULTE Robert Institute of Manufacturing Technology Germany 174

SEEFELDT Marc KU Leuven Belgium 74

SEITZ Joachim Institute of Metal Forming (IBF), RWTH Aachen University Germany 255

SENDI Zohra National Engineering School of Monastir Tunisia 247

SETTEFRATI Amico TRANSVALOR France 7

SHEN Houfa Tsinghua Univ China 233

SHIM Do-Sik KITECH South Korea 153

SIEBERER Stefan Primetals Technologies Austria GmbH Austria 248

SONG Hongwu Institute of Metal Research, Chinese Academy of Sciences China 238

SONG Woo Jin Pusan National University Korea, South

SORNIN Denis CEA France 256

STEGLICH Dirk Helmholtz-Zentrum Geesthacht Germany 73

STEINBACH Ingo Ruhr-University Bochum Germany 119

TAKASHI Ueda Kyoto institute of Technology Japan 145

TANG Heng South China University of Technology China

TANG Tian Bekaert Belgium

THIBAUD Sébastien ENSMM ; FEMTO-ST France

THOMAS Anoop Ebey Université de Reims Champagne-Ardenne France 168

TOME JARDIN Rúben António

Université de Liège Belgium 176

TREJO NAVAS Victor Manuel

Cemef France 130

URUSHIYAMA Yuta Honda R&D Japan

USTUNYAGIZ Esmeray Denmark Technical University Denmark 187

VAN DEN BOOGAARD Ton University of Twente Netherlands 137

VARELA Sonia FUNDACION TECNALIA RESEARCH & INNOVATION Spain

VEAL Thirom mk2i France

VIDONI Michele Liebherr-Aerospace Lindenberg GmbH Germany

WAELDER Jonas IFU Stuttgart Germany 111

WAGONER Robert Ohio State University USA 50

WANG Peng ENSAM - LEM3 France 101

WANG Hu Hunan University China 79

WANG Mingchuan UTT France 44

WELCH John Swansea university United Kingdom

87

WESNER Thomas ETH Zurich, Institute of Virtual Manufacturing Switzerland 266

WIDAUER Patrick HTL Donaustadt Austria 118

WOHLTAN Alexander HTL Donaustadt Austria 118

WOJCIK Lukasz Polmotors Sp.z o.o. Poland

WOO Min-A Pusan National University Korea, South 82

WROBEL Ireneusz Polmotors Sp.z o.o. Poland

WU Peidong McMaster University Canada 138

XIA Qinxiang South China University of Technology China 186

XU Yong Institute of Metal Research, Chinese Academy of Sciences China 190

YANG Kang Université de Technologie de Compiègne France

YANG Fangtao UTC France 53

YENDJADJ Catherine UTT France

YING Liang Dalian Universtiy of Technology China 28

YOON Jeong Whan Deakin University Australia 94

YOSHIDA Fusahito Hiroshima University Japan 201

YOUNES Wael IRT Jules Verne France 9

YU Hailiang University of Wollongong Australia 20

ZENG Yang Hunan University China 79

ZHANG Shihong Institute of Metal Research, Chinese Academy of Sciences China

ZHANG Shunying Deakin University Australia 81

ZHANG Haiyan Ningbo University of Technology China 218

ZHAO Yuchen Université de Technologie de Troyes France

ZHOU Jianqiang Université de Technologie de Troyes France

ZUFFEREY Marc Synthes Produktions GmbH Switzerland

ZUO Yinan RWTH Aachen Germany 258

monday thursday - uttnumiform2016.utt.fr/papers/booklet-numiform.pdf · lunch ticket when entering...

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