patran 2008 r1 interface to ansys preference guide

Patran 2008 r1

Interface To ANSYS Preference Guide

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Con t en t s

Patran Interfaces to ANSYS Preference Guide

1 Overview

Purpose 2

ANSYS Product Information 3

What is included with this Product? 4

ANSYS Input File Reader 4

Patran ANSYS Integration with Patran 6

Configuring the ANSYS Submit File 9

2 Building A Model

Introduction to Building a Model 12

Coordinate Frames 16

Finite Elements 17

Nodes 18

Elements 19

Multi-Point Constraints 20

DOF Lists 26

Patran Material Library 29

Materials Form 30

Element Properties 65

Element Properties Form 65

Loads and Boundary Conditions 139

Loads & Boundary Conditions Form 140

Load Cases 153

Load Cases Form 154

Wavefront Optimization 155


==

ii

3 Running an Analysis

Review of the Analysis Form 158

Analysis Form 159

Translation Parameters 161

Solution Types 162

Solution Parameters 163

Linear Static 163

Nonlinear Static (ANSYS 4.4) 164

Nonlinear Static (ANSYS 5) 166

Convergence Criteria 168

Advanced Options (ANSYS 4.4) 169

Advanced Options (ANSYS 5) 170

Eigenvalue Buckling (ANSYS 4.4) 171

Eigenvalue Buckling (ANSYS 5) 173

Modal 175

Mode Expansion Parameters 176

Harmonic 177

Expansion Parameters (Multiple Solutions) 179

Expansion Parameters (One Loadstep/Substep) 180

Expansion Parameters (Specified Frequency) 181

Master Degrees of Freedom 182

Steady-State Heat Transfer 183

Select Load Cases 185

Output Requests 186

Output Requests Form 187

4 Read Results

Review of the Read Results Form 190

Read Results Form 191

Flat File Results 192

Translation Parameters 193

Select File 194

Results Created in Patran 195

Model Entities Created in Patran 204

Delete Result Attachment Form 205

iiiCONTENTS

5 Read Input File

Review of the Read Input File Form 208

Read Input File Form 208

Selection of Input File 210

Data Translated from the ANSYS Input File 211

Supported Keywords 212

6 Delete

Review of Delete Form 216

Deleting an ANSYS Job 217

7 Files

Files 228

8 Errors/Warnings

Errors / Warnings 232


==

iv

Chapter 1: Overview

Patran Interface to ANSYS Preference Guide

1 Overview

� Purpose 2

� ANSYS Product Information 3

� What is included with this Product? 4

� Patran ANSYS Integration with Patran 6

� Configuring the ANSYS Submit File 9

Patran Interface to ANSYS Preference GuidePurpose

2

Purpose

Patran is the name of a suite of products written and maintained by MSC Software Corporation (MSC).

The core of the system is Patran, a finite element analysis pre- and postprocessor. The Patran system also

includes several optional products such as advanced postprocessing programs, tightly coupled solvers,

and interfaces to third-party solvers. This document describes the interface to ANSYS.

The Patran ANSYS Application Interface provides a communication link between Patran and ANSYS.

It also provides customization of certain features that can be activated by selecting ANSYS as the

analysis code preference in Patran.

Patran ANSYS is integrated into Patran. The casual user will never need to be aware that separate

programs are being used. For the expert user, there are four main components of Patran ANSYS: several

PCL files to provide the customization of Patran for ANSYS, PAT3ANS to convert model data from the

Patran database into the analysis code input file, and ANSPAT3 and ANS5PAT3 to translate results from

the ANSYS Revision 4.4 and Revision 5 results files, respectively, into the Patran database.

Selecting ANSYS or ANSYS 5 as the analysis code under the “Analysis Preference” menu customizes

Patran in five main areas:

1. Material Library

2. Element Library

3. MPCs

4. Loads and Boundary Conditions

5. Analysis forms

PAT3ANS converts model data directly from the Patran database into the analysis code-specific input file

format. This translation must have direct access to the originating Patran database. The program name

indicates the direction of translation: from Patran to ANSYS.

ANSPAT3 and ANS5PAT3 convert results and ⁄or model data from the analysis code-specific results

file into the Patran database. These programs can be run such that the data is loaded directly into the

Patran database, or if incompatible computer platforms are being used, an intermediate file can be

created. The program name indicates the direction of translation: from ANSYS to Patran.

3Chapter 1: OverviewANSYS Product Information

ANSYS Product Information

ANSYS is a general-purpose finite element computer program for engineering analyses. It is developed,

supported, and maintained by ANSYS, Inc., Southpointe, 275 Technology Drive, Canonsburg,

Pennsylvania 15317, (412) 746-3304. Please see the ANSYS User’s Manual Volume I for a general

description of ANSYS capabilities.

FLOTRAN is a general-purpose computational fluid dynamics package based on the finite element

method. It is developed, supported, and maintained by ANSYS, Inc., Southpointe, 275 Technology

Drive, Canonsburg, Pennsylvania 15317, (412) 746-3304. Please see the FLOTRAN User’s Manual

Volume I for a general description of FLOTRAN capabilities.

Patran Interface to ANSYS Preference GuideWhat is included with this Product?

4

What is included with this Product?

The Patran ANSYS product includes all of the following items:

1. PCL command and library files which add all the Patran ANSYS customization definitions into

Patran. These files are named load_lib_ansys.ses and ansys.plb for ANSYS Revision

4.4A and load_lib_ansys5.ses and ansys5.plb for ANSYS Revision 5.

2. The executable programs are PAT3ANS, ANSPAT3, and ANS5PAT3 which perform the forward

and results translation of data. Although these programs are separate executables, they run from

within Patran, and are transparent to the user.

3. Script files are included to drive the programs in item 2. These script files are started by Patran

and control the running of the programs in Patran ANSYS.

4. This Application Preference User’s Manual is included as part of the product. An on-line version

is also provided to allow the direct access to this information from within Patran.

5. A template file for importing FLOTRAN results into Patran using the functionality described in

Importing Results (p. 190) in the Patran Reference Manual and the FLOTRAN .res or .rsf

files.

ANSYS Input File Reader

It is possible to read an existing ANSYS input file (jobname.inp) into Patran. This is not a fully supported

feature and must be invoked by setting a special parameter. This is done by editing the settings.pcl

file and adding the following line:

pref_env_set_logical( "shareware_input_file", TRUE )

If this setting is set to TRUE, then an additional Action item appears under the Analysis form called Read

Input File. This file can exist in the installation, local or home directories.

5Chapter 1: OverviewWhat is included with this Product?

Patran Interface to ANSYS Preference GuidePatran ANSYS Integration with Patran

6

Patran ANSYS Integration with Patran

Creation of an ANSYS or ANSYS 5 Template Database

Two versions of the Patran database are delivered with Patran. Both reside in the <installation_directory>

directory and they are named base.db and template.db. base.db is a Patran database into which no analysis

code specific definitions, such as element types and material models, have been stored. template.db is a

version of the Patran database which contains most analysis code specific definitions needed by the MSC

supplied interfaces. To create a template database which contains only ANSYS and/or ANSYS

Revision 5 specific definitions, these steps should be followed:

1. Within Patran open a new database using base.db as the template.

2. Enter “load_ansys()” into the command line for ANSYS Revision 4.4A, or

“load_ansys5()” for ANSYS Revision 5, or both to have both ANSYS Revisions available.

3. Save this database under a name like “ansys.db” to be your new “ANSYS only” template

database.

4. From then on, when opening a new database, choose “ansys.db” as your template database.

Any databases derived from base.db may not contain the needed ANSYS specific definitions needed

to run the Patran ANSYS interface. But, ANSYS specific definitions can be added to any database at any

time by simply typing “load_ansys()” or “load_ansys5()” into the Patran command line while

the target database is the database currently opened by Patran. Due to the savings in size and for the sake

of simplicity it is highly recommended “template.db” not be used as a template database and that the

user create his or her own unique template database which contains only the analysis code specific

definitions pertaining to the analysis codes of immediate interest. For more details about adding analysis

code specific definitions to a database and/or creating unique template databases, refer to Modifying the

Database Using PCL (Ch. 1) in the PCL and Customization or to the Patran Installation and Operations

Guide.

The diagrams that follow indicate how these files and programs fit into the Patran environment. In some

cases, site customization of some files is indicated. See the Patran Installation and Operations Guide for

more information.

Figure 1-1 shows the process of running an analysis. The ansys.plb library defines the Translation

Parameter, Solution Type, Solution Parameter, and Output Request forms brought up by the Analysis

form. When the Apply button is selected on the Analyze form, a job control file, named

“jobname”.jba, is created, and the script AnsysSubmit is started. This script may need to be

modified for individual site installation. For more information see Configuring the ANSYS Submit File.

The script, in turn, starts the PAT3ANS forward conversion. Patran operation is suspended at this time.

PAT3ANS reads data from the database and creates the ANSYS input file, named “jobname”.prp. A

message file, named “jobname”.msg, is also created to record any translation messages. If PAT3ANS

finishes successfully and the user has requested it, the script will then start the ANSYS analysis.

7Chapter 1: OverviewPatran ANSYS Integration with Patran

Figure 1-1 Forward Translation

Figure 1-2 shows the process of reading information from an analysis results file. When the Apply button

is selected on the Read Results form, a job control file, named “jobname”.jbr, is created, and the

ResultsSubmit script is started. This script may need to be modified for individual site installation. For

more information, see Configuring the ANSYS Submit File. The script, in turn, starts the ANSPAT3 results

conversion. The Patran database is closed while this conversion occurs. A message file is created to

record any translation messages. ANSPAT3 reads the data from the ANSYS results file. If ANSPAT3 can

find the desired database, the results will be loaded directly into it. However, if it cannot find the database,

for example, if several incompatible platforms are running, ANSPAT3 will write all the data into a flat

file. This flat file can be taken where the database is, and read by using the read file selections.

Patran Interface to ANSYS Preference GuidePatran ANSYS Integration with Patran

8

Figure 1-2 Results Translation

9Chapter 1: OverviewConfiguring the ANSYS Submit File

Configuring the ANSYS Submit File

During the installation of the Patran ANSYS analysis preference, the mscsetup utility creates a default

site_setup file in the installation directory. This file sets environment variables relating to Patran. To

custom configure this site_setup file consult Environment Variables (Ch. 4) in the Patran

Installation and Operations Guide.

Patran Interface to ANSYS Preference GuideConfiguring the ANSYS Submit File

10

Chapter 2: Building A Model

Patran Interface to ANSYS Preference Guide

2 Building A Model

� Introduction to Building a Model 12

� Coordinate Frames 16

� Finite Elements 17

� Patran Material Library 29

� Element Properties 65

� Loads and Boundary Conditions 139

� Load Cases 153

� Wavefront Optimization 155

Patran Interface to ANSYS Preference GuideIntroduction to Building a Model

12

Introduction to Building a Model

There are many aspects to building a finite element analysis model. In several cases, the forms used to

create the finite element data are dependent on the selected analysis code and analysis type. Other parts

of the model are created using standard forms.

Under Preferences on the Patran main form is a selection for Analysis. Analysis Preferences defines the

intended analysis code which is to be used for this model.

The analysis code may be changed at any time during the model creation. This is especially useful if the

model is to be used for different analyses, in several analysis codes. As much data as possible will be

converted if the analysis code is changed after the modeling process has begun. If any problems occur

during data conversion, messages describing the problem will appear in the Patran command line. The

analysis option defines what will be presented in several areas during the subsequent modeling steps.

These areas include the material and element libraries, including multi-point constraints, the applicable

loads and boundary conditions, and the analysis forms. The selected Analysis Type may also effect the

selections in these same areas. For more details, see Preferences>Analysis (p. 431) in the Patran

Reference Manual.

13Chapter 2: Building A ModelIntroduction to Building a Model

The following tables outline the various ANSYS options supported by the Patran ANSYS Application

Preference. For further information about these options, see the ANSYS User’s Manual Volumes I and II.

Supported ANSYS Commands

The following ANSYS commands are supported.

Supported Commands

! DOMEGA ITER N REAL

ACEL EC KAN NCNV RMORE

AFWRITE ECDELE KAY,1 NEQIT SAVE

ALPHAD EMORE KAY,10 NL SFE

ANTYPE EN KAY,2 NLGEOM SFEDELE

AUTOTS /EOF KAY,3 /NOPRINT /SOLUTION

/AUX1 EP KAY,4 NROPT SOLVE

/BATCH EPDELE KAY,6 NROTAT SSTIF

BCDCNV ET KAY,7 NSUBST /STITLE

BETAD EQSLV KAY,8 NT /STRESS

BF /EXIT KAY,9 NTDELE STRSET

BFDELE EXMOD KBC NUMEXP T

/BUCKLE EXPASS KEYOPT OMEGA TB

BUCOPT EXPSOL KMPRPT OUTPR TBDATA

CE EXTMOD KNROP OUTRES TBPT

CERIG F KTEMP PODISP TBTEMP

Patran Interface to ANSYS Preference GuideIntroduction to Building a Model

14

Supported ANSYS Element Types

The following ANSYS element types are supported. Elements marked with an asterisk (*) support

ANSYS Revision 5 results, but not Revision 4.4 results. Please note that the elements are listed using the

ANSYS 5.X naming convention. For ANSYS 4.X, the elements use the “STIFFXX” naming convention,

where “XX” is the number appearing in the ANSYS 5.X element name. All listed elements are supported

for both ANSYS 4.4 and 5.X for translation from Patran into an ANSYS input file (jobname.prp).

CESIZE FDELE LNSRCH PONF TDELE

CNVR FINISH LOCAL PORF TIME

CNVTOL /GOPRINT LUMPM POSTR /TITLE

/COM HARFRQ LWRITE PRDISP TOFFST

CONV HF M PRED TOTAL

CP HFDELE MAT /PREP7 TREF

CRPLIM HFLOW MODOPT PRNF TUNIF

D HREXP MP PRRF

DDELE HROPT MPDATA PRSTR

DELTIM HROUT MPTEMP PSTRES

DMPRAT /INPUT,27 MXPAND R

Name Description Pages

LINK1 2-Dimensional Spar 82

PLANE2 2-Dimensional 6-Node Triangular Solid 108I 109

BEAM3 2-Dimensional Elastic Beam 93

BEAM4 3-Dimensional Elastic Beam 72

SOLID5 Coupled Field Solid 119I 135

LINK8 3-Dimensional Spar 83

LINK10* Tension-only or Compression-only Spar 89

CONTAC12 2-Dimensional Preference 87

PLANE13 2-Dimensional Coupled Field Solid 114I 132

COMBIN14 Spring-Damper 84I 85I 125

PIPE16 Elastic Straight Pipe 76

PIPE18 Elastic Curved pipe or elbow 74

MASS21 Generalized Mass 69I 70, 71

BEAM23 2-Dimensional Plastic Beam 93I 93I 93I 98

SHELL28 4-Node Quadrilateral Shear ⁄Twist Panel 112I 113

LINK31 Radiation Link 123

LINK32 2-Dimensional Heat Conduction Bar 124

LINK33 3-Dimensional Heat Conduction Bar 121

Supported Commands

15Chapter 2: Building A ModelIntroduction to Building a Model

LINK34 Convection Link 122

PLANE35 2-Dimensional 6-Node Triangular Thermal Solid 129, 130

COMBIN40 Combination 90I 126

SHELL41* Membrane Shell 110

PLANE42 2-Dimensional Isoparametric Solid 108I 109

SHELL43 Plastic Quadrilateral Shell 104

BEAM44 3-Dimensional Tapered Unsymmetrical Beam 79

SOLID45 3-Dimensional Isoparametric Solid 116

SOLID46 8-Node Layered Solid 118

SHELL51* Axisymmetric Structural Shell 92

CONTAC52 Three-Dimensional Point-Point Contact 86

BEAM54* 2-Dimensional Tapered Unsymmetric Beam 99

PLANE55 2-Dimensional Isoparametric Thermal Solid 129I 130

SHELL57 Isoparametric Quadrilateral Thermal Shell 128

SHELL63 Elastic Quadrilateral Shell 101I 106

PLANE67 Thermal -Electric 2D Solid 131

LINK68 Thermal-Electric Line 127

SOLID69 3-Dimensional Thermal Electric Solid 134

SOLID70 Isoparametric Thermal Solid 133

MASS71 Lumped Thermal Mass with Variable Heat Generation 120

SOLID72* 4-Node Tetrahedral Structural Solid with Rotations 117

SOLID73* 3-Dimensional 8-Node Structural Solid with Rotations 117

PLANE77 2-Dimensional 8-Node Isoparametric Thermal Solid 129I 130

PLANE82 2-Dimensional 8-Node Isoparametric Solid 108I 109

SOLID87 10-Node Tetrahedral Thermal Solid 133

SOIID90 3-Dimensional 20-Node Isoparametric Thermal Solid 133

SHELL91 8-Node Layered Shell 105

SOLID92 3-Dimensional Tetrahedral Structural Solid 116

SHELL93 8-Node Isoparametric Shell 104

SOLID95 3-Dimensional three-dimensional Structural Solid 116

SOLID98 Tetrahedral Coupled Field Solid 119I 135

SHELL99 8-Node Layered Shell 103

Contac48* 2D Point to Surface Contact 146

Contac49* 3D Point to Surface Contact 146

*These element types are supported indirectly through the Contact LBC see Contact (Deform-Deform).

Name Description Pages

Patran Interface to ANSYS Preference GuideCoordinate Frames

16

Coordinate Frames

Patran coordinate frames will generate the ANSYS LOCAL and NROTAT commands for nodes which

are assigned an analysis coordinate frame. Analysis coordinate frames can be specified when nodes are

created or modified, and when assigning a displacement boundary condition with an analysis coordinate

frame. All ANSYS nodes will reference the global analysis coordinate frame unless

otherwise specified.

Rectangular, Cylindrical, or Spherical coordinate frames may be created. The origin and rotation angles

of the new coordinate frames are used in the LOCAL command. Due to ANSYS coordinate frame

numbering requirements, 10 will be added to the Patran coordinate frame ID when it is translated to the

ANSYS input deck.

For more information see Creating Coordinate Frames (p. 393) in the Geometry Modeling - Reference

Manual Part 2.

17Chapter 2: Building A ModelFinite Elements

Finite Elements

Finite Elements in Patran is used to define the basic finite element construction. The Finite Elements

form appears when Finite Elements, located on the Patran main form, is chosen. Use this application to

create ANSYS nodes and elements.

Patran Interface to ANSYS Preference GuideFinite Elements

18

Nodes

Nodes in Patran will generate the ANSYS N command. Create Nodes either directly by using the Node

object, or indirectly by using the Mesh object. An ANSYS NROTAT command is generated for each

node associated to a non-global analysis coordinate frame.


Elements

Finite Elements in Patran assign element topology, such as Quad ⁄4 which is used for standard finite

elements. The type of elements created are not determined until the element properties are assigned.

Either create elements directly, by using the Element object, or indirectly by using the Mesh object. The

element connectivity is entered using the ANSYS EN command.


20

Multi-Point Constraints

Multi-point Constraints (MPCs) can be created from the Finite Elements form. MPCs are special element

types which define a rigorous behavior between several specified nodes. The forms for creating MPCs

are found by selecting MPC as the Object on the Finite Elements form. The full functionality of the MPC

forms are defined in Create MPC Form (for all MPC Types Except Cyclic Symmetry and Sliding Surface)

(p. 125) in the Reference Manual - Part III.


MPC Types

To create an MPC, first select the type of MPC to be created from the option menu. The MPC types that

appear in this option menu are dependent on the current settings of the Analysis Code and Analysis Type

preferences. The following table describes the MPC types which are supported for Patran ANSYS.

Degrees-of-Freedom

When a list of degrees-of-freedom is expected for an MPC term, a listbox containing the valid degrees-

of-freedom is displayed on the form. A degree-of-freedom is valid if:

1. It is valid for the current Analysis Code Preference.

2. It is valid for the current Analysis Type Preference.

3. It is valid for the selected MPC type.

In most cases, all degrees-of-freedom which are valid for the current Analysis Code and Analysis Type

preferences are valid for the MPC type.

MPC Type Analysis Type Description

Explicit Structural

Thermal

Creates an ANSYS CE explicit MPC between a dependent

degree-of-freedom and one or more independent degrees-of-

freedom. The dependent term consists of a node ID and a

degree-of-freedom, while an independent term consists of a

coefficient, a node ID, and a degree-of-freedom. An unlimited

number of independent terms can be specified, while only one

dependent term can be specified. The constant term is obtained

from the Create MPC form.

Rigid (Fixed) Structural Creates the ANSYS CERIG command which constrains all

degrees-of-freedom at one or more dependent nodes to the

corresponding degrees-of-freedom at one independent node. An

unlimited number of dependent terms can be specified, while

only one independent term can be specified. Each term consists

of a single node. There is no constant term for this MPC type.

Rigid (Pinned)

Structural Creates the ANSYS CERIG command which constrains only

the translational components. An unlimited number of

dependent terms can be specified, while only one independent

term can be specified. Each term consists of a single node. There

is no constant term for this MPC type.

CP Structural

Thermal

Creates an ANSYS CP command between the selected degree-

of-freedom of the independent node and the same degree-of-

freedom of one or more dependent nodes. An unlimited number

of dependent terms may be specified. Only one independent

node and degree-of-freedom may be specified. There is no

constant term for this MPC type.


22

The following degrees-of-freedom are supported by the Patran ANSYS MPCs for the various analysis

types:

Explicit MPCs

This form appears when Define Terms is selected from the Finite Elements form when Explicit is the

selected type. Use this form to create the ANSYS CE command.

Degree-of-freedom Analysis Type

UX Structural

UY Structural

UZ Structural

RX Structural

RY Structural

RZ Structural

Temperature Thermal

Note: Make sure that the degree-of-freedom selected for an MPC actually exists. For example, a node

that is attached only to solid structural elements will not have any rotational degrees-of-

freedom. However, Patran will allow you to select rotational degrees-of-freedom at this node

when defining an MPC.

Note: The equation used to define Explicit MPCs in Patran (3-1) in the Reference Manual - Part III is

different than the equation used by ANSYS. The equation used by ANSYS is: C0 = C1U1 +

C2U2 +C3U3 + ... + CnUn. This will cause the independent terms to have the opposite sign in

the ANSYS PREP7 input file than the values input in the Patran Define Terms form. The

dependent term from the Patran form will be placed in the first term (C1U1) of the equation, with

C1 set to one, to comply with the ANSYS convention.


24

Rigid (Fixed)

This form appears when the Define Terms button is selected on the Finite Elements form when Rigid

(Fixed) is the selected Type. Use this form to create the ANSYS CERIG command.


Rigid (Pinned)

This form appears when the Define Terms button is selected on the Finite Elements form when Rigid

(Pinned) is the selected Type. Use this form to create the ANSYS CERIG command.


26

CP

This form appears when the Define Terms button is selected on the Finite Elements form when CP is the

selected Type. Use this form to create the ANSYS CP command.

DOF Lists

Degree-of-freedom (DOF) lists can be created from the Finite Elements form. DOF Lists are a collection

of node IDs and degrees-of-freedom. The form for creating DOF Lists is found by selecting DOF Lists

as the Object on the Finite Elements form. The full functionality of the DOF List forms is defined in

Creating DOF List (p. 132) in the Reference Manual - Part III.


28

Define Terms

This form appears when the Define Terms button is selected on the Finite Elements form when

DOF List is the selected Type. Use this form to create the ANSYS M command for each node,

DOF combination selected.

29Chapter 2: Building A ModelPatran Material Library

Patran Material Library

The Materials form will appear when the Materials toggle, located on the Patran main form, is chosen.

The selection made on this form will determine which materials form will be presented, and ultimately,

the material to be created.

The following pages give an introduction to the Materials forms, followed by definitions of all the

materials properties supported by the Patran ANSYS Application Preference.

References to externally defined materials (i.e., materials whose property values are not defined in

Patran) will result in a special comment and the creation of either the ANSYS ISOTROPIC or

ORTHOTROPIC option with zero values for all properties.

Patran Interface to ANSYS Preference GuidePatran Material Library

30

Materials Form

This form appears when Materials is selected on the main menu. The Materials form is used to create

ANSYS materials, and provides the following options.

The following table outlines the available Input Properties options when Create is the selected Action and

Structural is the selected Analysis Type.

.

Note: Set the Analysis Type on the Analysis Preferences form by selecting Preferences on the main

form.


Object Option 1 Option 2

Isotropic • Elastic

• Nonlinear Elastic

• Plastic • von Mises

• Multilinear Isotropic

• Failure • Tsai-WU

• Maximum Strain

• Maximum Stress

• Electric

• Piezoelectric

3D Orthotropic • Elastic

• Plastic • von Mises

• Multilinear Isotropic

• Electric

• Failure • Tsai-Wu

• Maximum Strain

• Maximum Stress

• Piezoelectric

3D Anisotropic • Elastic

• Failure • Tsai-Wu

• Maximum Strain

• Maximum Stress

• Electric

• Piezoelectric

Composite • Laminate

• Rule of Mixtures

• Hal Cont. Fiber

• Hal Disc. Fiber

• Hal Cont. Ribbon

• Hal Disc. Ribbon

• HAL Particulate

• Short Fiber 1D

• Short Fiber 2D


32

The following table outlines the options when Create is the selected Action and Thermal is the selected

Analysis Type.

Isotropic

Elastic

This form appears when the Input Options button is selected on the Materials form when the following

is applied.

Note: Set the Analysis Type on the Analysis Preferences form by selecting Preferences on the main

menu.

Object Option 1

Isotropic • Thermal

• Electric

3D Orthotropic • Thermal

• Electric

3D Anisotropic • Thermal

• Electric

Composite • Laminate

• Rule of Mixtures

• HAL Cont. Fiber

• HAL Disc. Fiber

• HAL Cont. Ribbon

• HAL Disc. Ribbon

• HAL Particulate

• Short Fiber 1D

• Short Fiber 2D

Object Option 1

Isotropic Elastic


Use this form to create the ANSYS material property commands (MP). These properties (except for

Reference Temperature) may be either real scalar values or references to tabular fields of values versus

temperature. If a tabular field is referenced, the appropriate MPTEMP and MPDATA commands will be

created instead of the MP command.


34

Nonlinear Elastic


is applied.

Object Option 1

Isotropic Nonlinear Elastic

Note: The ANSYS program allows only 5 data points to define the curve for ANSYS Revision 4.4.

ANSYS 5 will allow 100 points. Similarly, ANSYS 4.4 allows only 5 temperatures and ANSYS

5 allows 20. Keep this in mind when defining your fields.


Plastic


is applied.

Object Option 1

Isotropic Plastic


ANSYS 5 will allow 100 points. Similarly, ANSYS 4.4 allows only 5 temperatures and

ANSYS 5 allows 20. Keep this in mind when defining your fields.


36

Failure


is applied.

Use this form to create the ANSYS NL commands (ANSYS 4.4) or TB, TBTEMP, and TBDATA

commands (ANSYS 5). For ANSYS Revision 5 the TB, FAIL and TBTEMP,CRIT commands are

written to indicate failure criteria which are being written. These are followed by a TB DATA, 1, 1

command to indicate a Tsai-Wu failure criteria is being defined. If a reference temperature is specified a

TBTEMP command will be written.


Isotropic Failure Tsai-Wu


Failure


is applied.

Use this form to create the ANSYS NL commands (ANSYS 4.40 or TB,TBTEMP, and TBDATA

commands (ANSYS 5) for failure theory definition.


Isotropic Failure Maximum Strain

Maximum Stress


38

Electric


is applied.

Object Option 1

Isotropic Electric


Piezoelectric


is applied.

Object Option 1

Isotropic Piezoelectric

Note: The Data input follows the ANSYS convention. This may be different from the material data

provided by several standards organizations. Confirm order of data presentation prior to

entering the data into these forms.


40


This is a list of data input, available for defining the Piezoelectric criteria, which was not shown on the

previous page. Use the scroll bars to view these properties.

3D Orthotropic

Elastic


is applied.

Use this form to create the ANSYS material property commands (MP). These properties (except for

Reference Temperature) may be either real scalar values or references to tabular fields of values versus

temperature. If a tabular field is referenced, the appropriate MPTEMP and MPDATA commands will be

created instead of the MP command.

Property Name Description

Piezo Matrix Term 51 =





Piexo Matrix Term 63 =

Continuation of the definition of the terms of the Piezoelectric matrix.

These are written as the terms 133 through 150 of the NL table for

ANSYS 4.4. For ANSYS 5 the LAB parameter of the TB command is

set to PIEZO and the data are written using the TBDATA command.

Object Option 1

3D Orthotropic Elastic


42

This is a list of data input, available for defining the 3D Orthotropic criteria, which was not shown on the



Coeff of Thermal Exp 11



Defines the coefficient of thermal expansion for the material. These

will be written to the input file using the MP command with the LAB

parameter set to ALPX, ALPY, and ALPZ.

Reference Temperature Defines the stress free temperature. It is entered using the REFT

property name on the MP command. This parameter is supported only

by ANSYS 5.


Plastic


is applied.

Object Option 1

3D Orthotropic Plastic


ANSYS 5 will allow 100 points. Similarly, ANSYS 4.4 allows only 5 temperatures and ANSYS

5 allows 20. Keep this in mind when defining your fields.


44

Electric


is applied.

Object Option 1

3D Orthotropic Electric


Failure


is applied.

Use this form to create the ANSYS NL commands (ANSYS 4.4) or TB, TBTEMP, and TBDATA

commands (ANSYS 5). For ANSYS Revision 5 the TB, FAIL and TBTEMP,CRIT commands are

written to indicate failure criteria which are being written. These are followed by a TB DATA, 1, 1

command to indicate a Tsai-Wu failure criteria is being defined. If a reference temperature is specified a

TBTEMP command will be written.


3D Orthotropic Failure Tsai-Wu


46

This is a list of data input, available for defining the Tsai-Wu failure criteria, which was not shown on the

previous page. Use the scroll bars to view these properties

.

Failure


is applied.

Use this form to create the ANSYS NL commands for failure theory definition.


Interaction Term 12

Interaction Term 23

Interaction Term 13

Defines the X-Y, Y-Z, and X-Z coupling coefficients. For ANSYS 4.4,

these are entered in the 211th, 217th, and 223rd columns of the NL

table, using the NL command. For ANSYS 5, these are entries 18

through 20 in the TBDATA command.


3D Orthotropic Failure Maximum Strain

Maximum Stress


Piezoelectric


is applied.

Object Option 1

3D Othotropic Piezoelectric





48




3D Anisotropic

Elastic


is applied.







Piexo Matrix Term 63 =



ANSYS 4.4. For ANSYS 5 the LAB parameter of the TB command

is set to PIEZO and the data are written using the TBDATA command.

Object Option 1

3D Anisotropic Elastic





50





Stiffness 62Stiffness 33Stiffness 43stiffness 53Stiffness 63Stiffness 44Stiffness 54Stiffness 64Stiffness 55Stiffness 65Stiffness 66

Continuation of the Definition of the terms of the anisotropic stiffness

matrix. These are entered as terms 271 through 291 of the NL table

for ANSYS 4.4. For ANSYS 5, the LAB parameter of the TB

command is set to ANEL and the data are written using the TBDATA

command.

Density Defines the mass density. It is entered using the DENS property name

on the MP command.

Coeff of Thermal Exp 11Coeff of Thermal Exp 22Coeff of Thermal Exp 33

Defines the coefficient of thermal expansion for the material. These

will be written to the input file using the MP command with the LAB

parameter set to ALPX, ALPY, and ALPZ.

Reference Temperature Defines the stress free temperature. It is entered using the REFT

property name on the MP command. This parameter is supported only

by ANSYS 5.


52

Failure


is applied.


3D Anisotropic Failure Tsai-Wu


This is a list of data input, available for defining the Tsai-Wu failure criteria, which was not shown on the


Failure


is applied.


Interaction Term 12Interaction Term 23Interaction Term 13

Defines the X-Y, Y-Z, and X-Z coupling coefficients. For ANSYS 4.4,

these are entered in the 211th, 217th, and 223rd columns of the NL

table, using the NL command. For ANSYS 5, these are entries 18

through 20 in the TBDATA command.


54


3D Anisotropic Failure Maximum Strain

Maximum Stress


Electric


is applied.

Object Option 1

3D Anisotropic Electric


56

Piezoelectric


is applied.

Object Option 1

3DAnisotropic Piezoelectric




Isotropic (Thermal)


is applied.

Use this form to create the ANSYS material property commands (MP). These properties may be either

real scalar values or references to tabular fields of values versus temperature. If a tabular field is

referenced, the appropriate MPTEMP and MPDATA commands will be created instead of the

MP command.


Piezo Matrix Term 51 =Piezo Matrix Term 52 =Piezo Matrix Term 53 =Piezo Matrix Term 61 =Piezo Matrix Term 62 =Piexo Matrix Term 63 =



ANSYS 4.4. For ANSYS 5 the LAB parameter of the TB command

is set to PIEZO and the data are written using the TBDATA command.

Object Option 1

Isotropic Thermal


58


Electric


is applied.

3D Orthotropic (Thermal)


is applied.

Object Option 1

Isotropic Electric

Object Option 1

3D Orthotropic Thermal


60

Use this form to create the ANSYS material property commands (MP). These properties may be either

real scalar values or references to tabular fields of values versus temperature. If a tabular field is

referenced, the appropriate MPTEMP and MPDATA commands will be created instead of the

MP command.

Electric


is applied.

Object Option 1

3D Orthotropic Electric


3D Anisotropic (Thermal)


is applied.

Object Option 1

3D Anisotropic Thermal


62

Electric


is applied.

Object Option 1

3D Anisotropic Electric


Composite

The Composite forms are used to create new materials by combining existing materials. All of the

composite materials, with the exception of the laminated composites, can be assigned to elements, as any

homogeneous material, through the element property forms. For the laminated composites, the section

thickness is entered indirectly through the definition of the stack. The Homogeneous option for shells,

plates and beam, must be changed to Laminate to avoid reentry of this information.

For details on entering data on the Composite forms, refer to the Composite Materials Construction

(p. 116) in the Patran Reference Manual.

Laminated

This form appears when Composite is the selected Object and Laminate is the selected Method on the

Materials form. Use this form to create the ANSYS real constant cards associated with the composite


64

elements. This may be used with SHELL91, SHELL99, or SOLID46 elements only. Layers are numbered

from the bottom of the element.

65Chapter 2: Building A ModelElement Properties

Element Properties

The Element Properties form appears when the Element Properties toggle, located on the Patran main

form, is chosen. When creating an element property several options are available. The selections made

on these forms will determine which Element Properties form will appear, and ultimately, which ANSYS

element will be created.

The following page gives an introduction to the Element Properties form, followed by definitions of the

element properties supported by the Patran ANSYS Application Preference.

Element Properties Form

This form appears when Element Properties is selected on the main form. Four option menus are used to

determine which ANSYS element types will be created, and which property forms will be displayed. The

individual property forms are explained later in this section. For more information on the Element

Properties form, see Create Element Property Sets (p. 67) in the Patran Reference Manual.

Patran Interface to ANSYS Preference GuideElement Properties

66


The following table outlines the options when the Analysis Type is set to Structural There is more

information on the Element Property input forms following the tables

.

Dimension Type Option 1 Option 2

0D • Mass • UX,UY

• UX,UY,UZ

• UX,UY,RZ,

• UX,UY,UZ,RX,RY,RZ

1D • Beam • General Section

• Curved w/Pipe Section

• Pipe Section

• Tapered Section

• Planar Spar

• Spar

• Spring/Damper • Standard Formulation

• Fixed Direction

• Gap

• Planar Gap

• Cable

• Combination

• Axisym Shell

• Planar Beam • General Section

• Circular Section

• General Plastic Section

• Pipe Section

• Rectangular Section

• Tapered Section

2D • Thin Shell • Homogeneous

• Laminate

• Thick Shell • Homogeneous

• Laminate

Bending Panel

• 2D Solid • Plane Strain

• Plane Stress

• Axisymmetric


68

The following table outlines the options when the Analysis Type is set to Thermal.There is more

information on the Element Properties input forms following this table

• Membrane

• Shear Panel

• Twist Panel

• 2D Coupled Field

Solid

• Plane Strain

• Plane Stress

• Axisymmetric

3D • Solid • Homogeneous • Standard Formulation

• Rotational DOF

• Laminate

• Coupled Field Solid • Voltage

• Magnetic Flux

• UX,UY,UZ

• UX,UY,UZ,Temp,

Volt,Mag Flux


0D • Mass

1D • Link • 3D Conduction

Convection

Radiation

• 2D Link

• Spring/Damper

• Combination

• Thermal - Electric Link

2D • Shell

• 2D Solid • Planar

• Axisymmetric

• Thermal - Electric 2D Solid • Planar

• Axisymmetric



Structural Mass (MASS21)

This form appears when the Input Properties button is selected on the Element Properties form when the

following is applied.

• 2D Coupled Field Solid • Temperature

• Magnetic Flux

3D • Solid

• Thermal - Electric Solid

• Coupled Field Solid

Analysis Type Dimension Type Option(s) Topologies

Structural 0D Mass UX, UY

UX, UY, UZ

Point/1



70

Use this form to create the MASS21 (Generalized Mass) elements. KEYOPT(3) is defined by the

selection of option 1 to be either 2, or 4. When UX,UY is selected, KEYOPT(3) is set to 4. When

UX,UY,UZ is selected KEYOPT(3) is set to 2.

2D Structural Mass with Rotation



Use this form to create the MASS21 (Generalized Mass) elements. KEYOPT(3) is set to 3.


Structural 0D Mass UX, UY, RZ Point/1


3D Structural Mass with Rotation



Use this form to create the MASS21 (Generalized Mass) elements. KEYOPT(3) is set to 0.


Structural 0D Mass UX, UY, UZ, RX, RY, RZ Point/1


72

3D Elastic Beam (BEAM4)



Use this form to create the BEAM4 (Three-Dimensional Elastic Beam) elements.


Structural 1D Beam General Section Bar/2


74

This is a list of data input, available for creating the 3D elastic Beam (BEAM4) which were not shown

on the previous page. Use the scroll bars to view these properties.

Curved Pipe (Elbow) (PIPE18)



Use this form to create the PIPE18 (Elastic Curved Pipe (Elbow)) elements

.


Theta Theta defines an additional rotation from the beam Orientation data. After

the beam orientation is initially established using the Beam Orientation Def

data, the Theta rotation is made around the local X-axis to define the final

local coordinate system. This is the THETA real constant. This value can

either be a real scalar or a reference to an existing field definition. This

property is optional.

Initial Strain Initial Strain defines the initial strain built into the element. This is the

INITIAL STRAIN real constant. This value can either be a real scalar or a

reference to an existing field definition. This property is optional.

Ixx Ixx defines the torsional moment of inertia about the local x-axis. This is the

IXX real constant. This value can either be a real scalar, or a reference to an

existing field definition. This property is optional.

Z Shear Constant

Y Shear Constant

Z and Y Shear Constants are the ratios of the actual beam cross-sectional

area to the effective area resisting shear deformation in the Z and Y

directions. These are the SHEARZ and SHEARY real constants. These

values can either be real scalars or references to existing field definitions.

These properties are optional.

Mass Matrix Option Mass Matrix Option defines the type of mass matrix to be used for these

elements. This defines the setting of KEYOPT(1). This value is a character

string, which can be set either to consistent, or reduced. This property is

optional. However, if it is not defined, consistent will be assumed.

Node Location Option Node Location Option defines the setting of KEYOPT(3). This defines how

the beam is oriented with respect to the nodes. This value can be set to origin

of Y-Z axes, centroid, or shear center. This property is optional.


Structural 1D Beam Curved Pipe (Elbow) (PIPE18) Bar/2

Note: Results translation is supported for ANSYS Revision 5 only.


This is a list of data input, available for creating the Curved Pipe (Elbow) (PIPE18) which were not

shown on the previous page. Use the scroll bars to view these properties.


76

Elastic Straight Pipe (PIPE16)



Use this form to create the PIPE16 (Elastic Straight Pipe) elements.


[Strs Intns. Factor @ 1] Define the stress intensity factor at end I and end J of the beam. These

are the SIFI and SIFJ real constants. These properties are optional.

[Flexibility] Defines the flexibility factor. This is the FLEX real constant. This


[Internal Fluid Density] Defines the density of the fluid contained in the pipe. This is the

DENSFL real constant. This property is optional.

[Ext Insulation Density] Defines the density of the external insulation applied to the pipe. This

is the DENSIN real constant. This property is optional.

[Ext Insulation Thick] Defines the thickness of the external insulation. This is the TKIN real

constant. This property is optional.

[Corrosion Thick Allow] Defines the allowable thickness of the corrosion on the pipe. This is the

TKCORR real constant. This property is optional.

[Temp Gradient Defn] Defines the representation of the temperature gradient. This is

KEYOPT(1). The value is a character string which can be set to either

“THRU_WALL” or “DIAMETRAL”. The KEYOPT will be set to 0 or

1 respectively. This is an optional property.

[Pipe Flex Factor Type] Defines the type of flexibility factor to be used if the FLEX real constant

is not specified. This is KEYOPT(3). The value is a character string

which may to set to “ANSYS NO PRESS TERM”, “ANSYS WITH

PRESS TERM”, or “KARMAN”. These correspond to KEYOPT

settings of 0, 1, and 2. This property is optional.

[Member Results Print] Specifies if member forces are to be printed. This is KEYOPT(6). The

value is a character string which may be set to either “NO MEMBER

PRINTOUT” or “PRNT MBR FORCE & MOMENT”. These

correspond to KEYOPT settings of 0 and 2. This is an optional property.


Structural 1D Beam Elastic Straight Pipe (PIPE16) Bar/2



This is a list of data input, available for creating the Curved Pipe (Elbow) (PIPE18) which were not

shown on the previous page. Use the scroll bars to view these properties.


Flexibility Defines the flexibility factor. This is the FLEX real constant. This


[Internal Fluid Density] Defines the density of the fluid contained in the pipe. This is the

DENSFL real constant. This property is optional.

[Ext Insulation Density] Defines the density of the external insulation applied to the pipe. This

is the DENSIN real constant. This property is optional.


78

[Ext Insulation Thick] Defines the thickness of the external insulation. This is the TKIN real


[Corrosion Thick Allow] Defines the allowable thickness of the corrosion on the pipe. This is

the TKCORR real constant. This property is optional.

[Insulation Surf area] Defines the surface area of the insulation applied to the pipe. This is

the AREAIN real constant. This property is optional.

[Pipe Wall Mass] Overrides the pipe wall mass calculation if a value is specified. This

is the MWALL real constant. This property is optional.

[Pipe Axial Stiffness] Overrides the pipe stiffness calculation if a value is specified. This is

the STIFF real constant. This is an optional property.

[Pipe Rotordynamic Spin] Defines the value of the rotordynamic spin. This is the SPIN real


[Temp Gradient Defn] Defines the representation of the temperature gradient. This is

KEYOPT(1). The value is a character string which can be set to either

“THRU_WALL” or “DIAMETRAL”. The KEYOPT will be set to 0

or 1 respectively. This is an optional property.

[Strs Intens Factr Defn] Defines which stress intensification factor(s) will be used. This is

KEYOPT(2). The value is a character string which can be set to

“FROM SIFI & SIFJ”, “NODE I TEE JOINT CALC,“, “NODE J

TEE JOINT CALC”, or “BOTH NODES TEE JNT CALC”. These

correspond to KEYOPT settings of 0, 1, 2, or 3. This is an optional

property.

[Pipe Element Type] Defines what type of pipe element this will represent. This is

KEYOPT(4). The value is a character string which can be set to

“STRAIGHT PIPE”, “VALVE”, “REDUCER”, “FLANGE”,

“EXPANSION JOINT”, “MITERED BEND”, or “TEE BRANCH”.

These correspond to KEYOPT settings of 0. 1. 2. 3. 4. 5. or 6. This is

an optional property.

[Pipe Press Component] Defines which component(s) of pressure are to be used. This is

KEYOPT(5). The value is a character string which may be set to

either “NORMAL COMPONENT”, or “FULL PRESSURE”. These

correspond to KEYOPT settings of 0 or 1.

This is an optional property.



Tapered Unsymmetrical Beam (BEAM44)



[Member Results Print] Specifies if member forces are to be printed. This is KEYOPT(6). The

value is a character string which may be set to either “NO MEMBER

PRINTOUT” or “PRNT MBR FORCE & MOMENT”. These

correspond to KEYOPT settings of 0 and 2. This is an optional

property.

[Gyro Damping Matrix] Specifies if a gyroscopic damping matrix is to be calculated. This is

KEYOPT(7). The value is a character string which may be set to

either “NO GYRO DAMP MATRIX”, or “COMPUTE GYRO

DAMP MATRIX”. These correspond to KEYOPT settings of 0 or 1.

If a gyroscopic damping matrix is to be computed, the SPIN real

constant must be greater than zero and DENSFL and DENSIN must

be zero.


Structural 1D Beam Tapered Section Bar/2



80

Use this form to create the BEAM44 (3D Tapered Unsymmetrical Beam) elements.


This is a list of data input, available for creating the Tapered Unsymmetrical Beam (BEAM44) which

were not shown on the previous page. Use the scroll bars to view these properties.


Area at End J Area at End J defines the cross-sectional area at each end of the

element. These are the AREA1 and AREA2 real constants. This value

can either be a real scalar or a reference to an existing field definition.

This property is required.

Z Inertia at JY Inertia at J

Defines the area moments of inertia about the Z and Y axes. These are

the IZ2 and IY2 real constants. These values can either be real scalars

or reference to existing field definitions. These properties are optional.

Z Bottom Thickness at JY Bottom Thickness at J

Z and Y Bottom Thickness defines the distances from the center of

gravity of the beam cross-section to the outermost fibers at the bottom

of the element in the Z direction at End J. These values are the TKZB2,

and TKYB2 real constants. These values are real scalars and are

optional properties.

Torsional Inertia @ I

Torsional Inertia @ J

Torsional Inertia defines the torsional inertia values at the ends of the

beam. These are IX1 and IX2 real constants. These values can either

be real scalars or references to existing field definitions, and are

optional properties.

Nodal Offset at I

Nodal Offset at J

Nodal Offset defines the distance from the nodes to the actual center

of gravity of the section at each end of the beam. These are the DX1,

DY1, DZ1, DX2, DY2, and DZ2 real constants. These values are real

vectors, and are optional properties.

Z Shear Constant

Y Shear Constant

Z and Y Shear Constant are the ratios of the actual beam cross-

sectional area to the effective and resisting shear deformation in the Z

and Y directions. These are the SHEARZ and SHEARY real constants.

These values can either be real scalars or references to existing field

definitions, and are optional properties.

Z Top Thickness at I, JY Top Thickness at I, J

Z and Y Top Thickness defines the distances from the center of gravity

of the beam cross-section to the outermost fibers in the positive and

negative y and z directions at either end of the element. These values

are the TKZT1, TKYT1, TKZT2 and TKYT2 real constants. These

values are real scalars and are optional properties.

Z Dir Shear Area at I, J

Y Dir Shear Area at I, J

Z and Y Dir Shear Areas define the shear areas in the y and z directions

at either end of the beam. These are the AREAZ1, AREAZ2, and

ARESY2 real constants. These values can either be real scalars or

references to existing field definitions, and are optional properties.


82

2D Spar (LINK1)



Torsional Shear at I

Torsional Shear at J

Torsional Shear defines the torsional stress factors at either ends of the

beam. These are used in calculating the torsional stresses in the

element. These are the TSF1 and TSF2 real constants. These values

can either be real scalars or references to existing field definitions, and

are optional properties.

Z Shr Ctr Offset at I, J

Y Shr Ctr Offset at I, J

Z and Y Shr Ctr Offset defines the offset from the center of gravity of

the section to the shear center. These are the DSCZ1, DSCY1, DSCZ2,

and DSCY2 real constants. These values can either be real scalars or

references to existing field definitions, and are optional properties. If

any of these are defined, KEYOPT(5) will be increased to 3.

Z Elast Found Stiffness

Y Elast Found Stiffness

Z and Y Elast Found Stiffness defines the elastic foundation stiffness

in the z and y directions. These are defined as the pressure required to

produce a unit normal deflection of the foundation. These are the

EFSZ and EFSY real constants. These values can either be real scalars

or referenced to existing field definitions, and are optional properties.

If either of these properties are defined, KEYOPT(5) will be increased

to 3.

Mass Matrix Options Mass Matrix Option defines the type of mass matrix to be used for

these elements. This defines the setting of KEYOPT(1). This value is

a character string, which can be set to either constant, or lumped, and

is an optional property. However, if it is not defined, consistent will be

assumed.

End I Releases

End J Releases

End Release defines the end release conditions at either end of the

element. These define the settings of KEYOPTs (3) and (4). These

values are character strings, which can be set to NONE, RX, RY, RZ,

RX&RY, or RX&RY&RZ. These properties are optional.


Structural 1D Planar Spar Bar/2



Use this form to create the LINK1 (Two-Dimensional Spar) elements.

3D Spar (LINK8)




Structural 1D Spar Bar/2


84

Use this form to create the LINK8 (Three-Dimensional Spar) elements.

Spring-Damper Axial (COMBIN14)




Structural 1D Spring/Damper Standard Formulation Bar/2


Use this form to create the COMBIN14 (Spring-Damper) elements.

Spring-Damper Fixed (COMBIN14)




Structural 1D Spring/Damper Fixed Direction Bar/2


86

Use this form to create the COMBIN14 (Spring-Damper) elements.

3D Point-Point Contact




Structural 1D Gap Bar/2


Use this form to create the CONTAC52 (Three-Dimensional Preference) elements.

2D Point-Point Contact




Structural 1D Planar Gap Bar/2


88

Use this form to create the CONTAC12 (Two-Dimensional Preference) elements.


This is a list of data input, available for creating the 2D Point-Point Contact, which were not shown on

the previous page. Use the scroll bars to view these properties.

Cable (LINK10)


following is applied

.

Use this form to create the LINK10 (Cable) elements.


Sticking Options Defines what stiffness is to be used for the Sticking Stiffness. This defines the

setting of KEYOPT(1). This value can either be set to use sticking stiffness or

zero sticking stiffness. If use sticking stiffness is selected, the KS real constant

is used to define the sticking stiffness. If not specified, ANSYS will default to

the KEYOPT setting, corresponding to use sticking stiffness. This is an

optional property.

Gap Size Option Defines how the initial gap opening is defined. This defines the setting of

KEYOPT(4). This value can either be based on gap size value, or based on

node locations. This is an optional property. However, if not specified, base

on gap size value will be assumed.


Structural 1D Cable Bar/2



90

.

Combination (COMBIN40)




Structural 1D Combination Bar/2


Use this form to create the COMBIN40 (Combination) elements.


92

This is a list of data input, available for creating the Combination (COMBIN 40), which were not shown


Axisymmetric Shell (SHELL51)



Use this form to create the SHELL51(Axisymmetric Structural Shell) elements.


Degree(s)-of-freedom Defines which degree-of-freedom this element is attached to. This

defines the setting of KEYOPTs (2) and (3). This value can be set to ux,

uy, uz, rotx, roty, or rotz. This is a required property.

Mass Distribution Defines the placement of the element mass values. This defines the

setting of KEYOPT(6). This value can be set to, at node I, at node J, or

equally distributed. This is an optional property. However, if it is not

specified, at node I will be assumed.

Lock up Option Removes the gap opening capability once the gap has closed. This

defines the setting of KEYOPT(1). Allowable options are: Include, and

Do Not Include. This is an optional property.


Structural 1D Axisymmetric Shell Bar/2



2D Elastic Beam (BEAM3)




Structural 1D Planar Beam General Section Bar/2


94

Use this form to create the BEAM3 (Two-Dimensional Elastic Beam) elements.

2D Beam-Circular Section (BEAM 23)




Structural 1D Planar Beam Circular Section Bar/2


Use this form to create the BEAM23 (2D plastic beam) elements with a circular cross section

.

2D Beam-General Sect (BEAM 23)





Structural 1D Planar Beam General Plastic Section Bar/2


96

Use this form to create the BEAM23 (2D Plastic Beam) elements with a general beam section.



This is a list of data input, available for creating the 2D Beam General Section, which were not shown


Figure 2-1 Weighting Factors for General Section (KEYOPT6=4)


Wt Factor@ L(-50) Defines the area weighting factors for the numerical integration of cross-

sectional properties. These are the A(-50), A(-30), A(0), A(30), and A(50)

real constants. These are required properties. For more information on these

area factors, see <bold_helvetica>Figure 2-1.

[Z shear Constant] Defines the shear deflection constant. This is the SHEARZ real constant.

This is an optional property.

[Shear Option] Specifies if shear deflection is to be included. This is KEYOPT(2). The

value is a character string which may be set to “NO SHEAR

DEFLECTION,” or “INCLUDE SHEAR DEFLECTION.” These

correspond to KEYOPT values of either 0 or 1. This is an optional property.

[Member Results Print] Specifies if member forces are to be printed. This is KEYOPT(6). The value

is a character string which may be set to either “NO MEMBER

PRINTOUT” or “PRNT MBR FORCE & MOMENT.” These correspond

to KEYOPT settings of 0 and 2. This is an optional property.


98

2D Beam-Pipe Section (BEAM 23)



Use this form to create the BEAM23 (2D Plastic Beam) element with a Pipe cross section.

Important: L(i) are weighting factors for the numerical integration of cross-sectional properties

such as area and moment of inertia. For further information on how to define the L(i) see

the ANSYS Users Manual, Volume III, Elements and Volume IV, Theory, for the

BEAM23 element.


Structural 1D Planar Beam Pipe Section Bar/2



2D Beam-Rectangular Section (BEAM 23)



Use this form to create the BEAM23 (2D Plastic Beam) elements with a rectangular cross section.


Structural 1D Planar Beam Rectangular Section Bar/2



100

2D Elastic Tapered Unsymmetric Beam (BEAM 54)




Structural 1D Planar Beam Tapered Section Bar/2


Use this form to create the BEAM54(2D Elastic Tapered Unsymmetric Beam) elements.



102

This is a list of data input available for creating the 2D Elastic Tapered Unsymmetrical Beam (BEAM54)

which were not shown on the previous page. Use the scroll bars to view these properties.

Elastic Shell (SHELL63)



Parameter Name Description

Z Inertia at J Defines the area moment of inertia about the principal axis of the beam at end

J. This is the IZ2 real constant and is an optional property.

Dist. C.G. to Top at J

Dist C.G. to Bot at J

Defines the distance from the center of gravity to the top and bottom of the

beam at end J. These are the HYT2 and HYB2 real constants and are optional

properties.

Nodal Offset at I

Nodal Offset at J

Nodal Offset defines the distance from the nodes to the actual center of

gravity of the section at each end of the beam. These are the DX1, DY1,

DX2, and DY2 real constants. These values are real vectors, and are optional

properties.

Z Shear Constant Defines the shear deflection constant. This is the SHEARZ real constant. It

is an optional property.

Shear Area at I

Shear Area at J

Defines the shear areas at either end of the beam. These are the AREAS1, and

AREAS2 real constants. These values can either be real scalars or references

to existing field definitions, and are optional properties.

Elast Found Stiffness Defines the elastic foundation stiffness. This is the EFS real constant and is

an optional property.


Structural 2D Thin Shell Homogeneous Tri/3, Quad/4


This form creates the SHELL63 (Elastic Quadrilateral Shell) elements. KEYOPT(1) is set to 0 to indicate

both bending and membrane stiffness.


104

This is a list of data input, available for creating the Elastic Shell (SHELL 63), which were not shown on

the previous page. Use the scroll bars to view these properties.

100-Layer Structural Shell




Dist C.G to Top

Dist C.G. to Bottom

Defines the section height from the neutral plane to the top of bottom

fiber for computing bending stresses. These are the CTOP and CBOT

real constants. These values can either be real scalars or references to

existing field definitions. These are optional properties.

Extra Shapes Option Indicates whether extra displacement shapes are to be used in the element

formulation. This defines the setting of KEYOPT(3). This value can be

set to, INCLUDE, or DO NOT INCLUDE. This is an optional property.

Pressure Load Options Defines how distributed loads are represented within the element. This

defines the setting to KEYOPT(6). This can be set to REDUCED or

CONSISTENT This is an optional property. However, if it is not

specified, REDUCED will be assumed.

Mass Matrix Options Defines the type of mass matrix to be used for these elements. This

defines the setting of KEYOPT(7). This value is a charter string, which

can be set to either CONSISTENT, LUMPED, or REDUCED. This is an

optional property. However, if it is not defined, REDUCED will be

assumed.


Structural 2D Thin Shell Laminate Tri ⁄6, Quad ⁄8


Use this form to create the SHELL99 (8-Node Layered Shell) elements.

Structural Shell (SHELL43/93)



Use this form to create the SHELL43 (Plastic Quadrilateral Shell) or SHELL93 (8-Node Isoparametric

Shell) elements, depending on the selected topology.


Structural 2D Thick Shell Homogeneous Tri ⁄3, Quad ⁄4

Tri ⁄6, Quad ⁄8


106

16-Layer Structural Shell




Structural 2D Thick Shell Laminate Tri ⁄6, Quad ⁄8


Use this form to create the SHELL91 (8-Node Layered Shell) elements.

Bending Panel (SHELL63)




Structural 2D Bending Panel Tri ⁄3, Quad ⁄4


108

Use this form to create the SHELL63 (Elastic Quadrilateral Shell) elements. KEYOPT(1) is set to 2 to

indicate bending stiffness only.


This is a list of data input, available for creating the Bending Panel (SHELL63), which were not shown


2D Plane Solid



Use this form to create either the PLANE2 (2-D, 6-Node Triangular Solid), the PLANE42 (2D

Isoparametric Solid), or the PLANE82 (2-D, 8-Node Isoparametric Solid) elements, which depends on

the selected topology. KEYOPT(3) is set to define either axisymmetric or plane strain behavior,

depending on the selection for option 1.


[Bending Inertia Ratio] Defines the ratio of the bending moment of inertia to be used to that

calculated from the input thickness. This is the RMI real constant.

This value can either be a real scalar or a reference to an existing field

definition. This is an optional property.

Dist C.G to Top

Dist C.G. to Bottom

Defines the section height from the neutral plane to the top of bottom

fiber for computing bending stresses. These are the CTOP and CBOT

real constants. These values can either be real scalars or references to

existing field definitions. These are optional properties.

Extra Shapes Option Indicates whether extra displacement shapes are to be used in the

element formulation. This defines the setting of KEYOPT(3). This

value can be set to INCLUDE, or DO NOT INCLUDE. This is an

optional property.

Pressure Load Options Defines how distributed loads are represented within the element.

This defines the setting to KEYOPT(6). This can be set to REDUCED

or CONSISTENT. This is an optional property. However, if it is not

specified, REDUCED will be assumed.

Mass Matrix Options Defines the type of mass matrix to be used for these elements. This

defines the setting of KEYOPT(7). This value is a character string,

which can be set to either CONSISTENT or REDUCED. This is an

optional property. However, if it is not defined, Reduced will be

assumed.


Structural 2D 2D Solid Plane Strain

Axisymmetric

Tri ⁄3, Quad ⁄4

Tri ⁄6, Quad ⁄8


110

2D Plane Stress Solid



Use this form to create either the PLANE2 (2-D, 6-Node Triangular Solid), the PLANE42 (2D

Isoparametric Solid), or the PLANE82 (2-D, 8-Node Isoparametric Solid) elements, which depends on

the selected topology. KEYOPT(3) is set to define plane stress behavior.


Structural 2D 2D Solid Plane Stress Tri ⁄3, Quad ⁄4

Tri ⁄6, Quad ⁄8


Membrane Shell (SHELL41)



Use this form to create the SHELL41(Membrane Shell) elements.


Structural 2D Membrane Tri/3, Quad/4



112


This is a list of data input available for creating the Membrane Shell (SHELL41) which were not shown


Shear Panel (SHELL28)




Elastic Found Stiffness Defines the elastic foundation stiffness. This is defined as the

pressure required to produce a unit normal deflection of the

foundation. This is the EFS real constant. This value can either be a

real scalar or a reference to an existing field definition. This is an

optional property.

Stiffness Dir Options Defines the stiffness behavior of the element to specify if the element

has stiffness in both tension and compression or if it has stiffness only

in tension and will collapse in compression. This defines the setting

of KEYOPT(1). This is a optional property.

Extra Shapes Option Indicates whether extra displacement shapes are to be used in the

element formulation. This defines the setting of KEYOPT(3). This

value can be set to INCLUDE or DO NOT INCLUDE. This is an

optional property.


Structural 2D Shear Panel Quad ⁄4


114

Use this form to create the SHELL28 (4-Node Quadrilateral Shear⁄Twist Panel) elements.

Twist Panel (SHELL28)




Structural 2D Twist Panel Quad ⁄4


Use this form to create the SHELL28 (4-Node Quadrilateral Shear⁄Twist Panel) elements.


116

2D Plane Coupled Field Solid



Use this form to create the PLANE13 (2D Coupled-Field Solid) elements. KEYOPT(3) will be set

appropriately to specify if the element is plane strain, plane stress, or axisymmetric, depending upon the

selection for Option 1. KEYOPT(1) will be set depending on the selection for Option 2.

Analysis Type Dimension Type Option 1 Option 2 Topologies

Structural 2D 2D Coupled

Field Solid

Plane Strain

Plane Stress

Axisymmetric

Magnetic Flux

UX, UY

UX,UY,Temp,Mag

Flux

Volt, Mag Flux

UX,UY,Volt

Tri/3,

Quad/4



Structural Solid




Structural 3D Solid Homogeneous

Standard Formulation

Tet ⁄4, Wedge ⁄6, Hex ⁄8,

Tet ⁄10, Wedge ⁄15, Hex ⁄20


118

Use this form to create the SOLID45 (3D Isoparametric Solid), SOLID92 (3D Tetrahedral Structural

Solid), or the SOLID95 (3D Structural Solid) elements.

Structural Solid with Rotations




Structural 3D Solid Homogeneous

Rotational DOF

Tet/4, Wedge/6,

Hex/8


Use this form to create the SOLID72 (4-Node Tetrahedral Structural Solid with Rotations) or the

SOLID73 (3D 8-Node Structural Solid with Rotations) elements.

Layered Structural Solid





Structural 3D Solid Laminate Tet ⁄4, Wedge ⁄6,

Hex ⁄8


120

Use this form to create the SOLID46 (8-Node Layered Solid) elements.

Coupled Field Solid




Use this form to create the SOLID98 (Tetrahedral Coupled-Field Solid) or the SOLID5 (3D Coupled

Field Solid) depending upon the selected topology. KEYOPT(1) will be set depending upon the selection

of Option.


Structural 2D Coupled Field Solid Voltage

Magnetic Flux

UX,UY,UZ

UX,UY,UZ, Temp,

Volt,Mag Flux

Tet⁄4, Wedge⁄6,

Hex⁄8,

Tet⁄10, Wedge⁄15,

Hex⁄20



122

Thermal Mass (MASS71)




Thermal 0D Mass Point ⁄1


Use this form to create the MASS71 (Lumped Thermal Mass with Variable Heat Generation) elements.

Conduction Bar (LINK33)




Thermal 1D Link 3D Link Conduction Bar ⁄2


124

Use this form to create the LINK33 (3-Dimensional Heat Conduction Bar) elements.

Convection Link (LINK34)




Thermal 1D Link 3D Link Convection Bar ⁄2


This form creates the LINK34 (Convection Link) elements.

Radiation Link (LINK31)




Thermal 1D Link 3D Link Radiation Bar ⁄2


126

Use this form to create the LINK31 (Radiation Link) elements.

Conduction Bar (LINK32)




Thermal 1D Link 2D Link Bar ⁄2


Use this form to create the LINK32 (2-Dimensional Heat Conduction) Bar.

Thermal Spring-Damper (COMBIN14)




Thermal 1D Spring/Damper Bar ⁄2


128

Use this form to create the COMBIN14 (Spring-Damper) elements with KEYOPT(2) set for a TEMP

degree-of-freedom.

Thermal Combination (COMBIN40)




Thermal 1D Combination Bar ⁄2


Use this form to create the COMBIN40 (Combination) elements with KEYOPT(3) set to 8 for a TEMP

degree-of-freedom.

Thermal Electric Link (LINK 68)




Thermal 1D Electric Link Bar ⁄2


130

Use this form to create the LINK68 (Thermal-Electric Line) elements.

Thermal Shell (SHELL57)





Thermal 2D Shell Tri⁄3, Quad⁄4


Use this form to create the SHELL57 (Isoparametric Quadrilateral Thermal Shell) elements.

2D Planar Thermal Solid



Use this form to create the PLANE35 (2-D, 6-Node Triangular Thermal Solid), PLANE55 (2D

Isoparametric Thermal Solid), or the PLANE77 (2-D, 8-Node Isoparametric Thermal Solid) element

with KEYOPT (3) set for Planar behavior.


Thermal 2D 2D Solid Planar Tri ⁄3, Quad ⁄4, Tri ⁄6,

Quad ⁄8


132

2D Axisymmetric Thermal Solid




Thermal 2D 2D Solid Axisymmetric Tri ⁄3, Quad⁄4

Tri ⁄6, Quad ⁄8


Use this form to create the PLANE35 (2-D, 6-Node Triangular Thermal Solid), PLANE55 (2D

Isoparametric Thermal Solid), or the PLANE77 (2-D, 8-Node Isoparametric Thermal Solid) element

with KEYOPT (3) set for Axisymmetric behavior.

Thermal Electric 2D Solid



Use this form to create the PLANE67 (2D Thermal-Electric Solid) elements.


Thermal 2D Electric 2D Solid Planar, Axisymmetric Tri/3, Quad/4



134

2D Coupled Field Solid



Use this form to create the PLANE13 (2D Coupled Field Solid) elements. KEYOPT(1) will be set

depending on the selection of the option.


Thermal 2D 2D Coupled Field

Solid

Temperature

Magnetic Flux

Tri/3, Quad/4



3D Thermal Solid




Thermal 3D Solid Tet⁄4, Wedge⁄6, Hex⁄8, Tet⁄10,

Wedge⁄15, Hex⁄20


136

Use this form to create the SOLID70 (Isoparametric Thermal Solid), SOLID87 (10-Node Tetrahedral

Thermal Solid), or SOLID90 (3-D, 20-Node Isoparametric Thermal Solid) elements, which depend on

the selected topology.

3D Thermal - Electric Solid



Use this form to create the SOLID69 (3D Thermal-Electric Solid) elements.


Thermal 3D Electric Solid Tet⁄4, Wedge⁄6, Hex⁄8, Tet⁄10,

Wedge⁄15, Hex⁄20



3D Thermal Coupled Field Solid



Use this form to create the SOLID98 (Tetrahedral Coupled-Field Solid) or SOLID5 (3D Coupled-Field

Solid) elements depending on the selected topology. KEYOPT(1) will be set depending on the selection

of the option.


Thermal 3D Coupled

Field Solid

Temperature,

Voltage,

Magnetic Flux,

UX,UY,UZ,Temp, Volt, Mag Flux

Temp, Volt, Mag Flux

Tet ⁄4, Wedge ⁄6,

Hex ⁄8, Tet ⁄10,

Wedge ⁄15,

Hex ⁄20



138

139Chapter 2: Building A ModelLoads and Boundary Conditions

Loads and Boundary Conditions

The Loads and Boundary Conditions form appears when the Loads ⁄BCs toggle, located on the Patran

main form, is chosen. The selections on this form will determine which Loads and Boundary form will

appear, and ultimately, which ANSYS loads and boundary conditions will be created.

The following page gives an introduction to the Loads and Boundary Conditions form, followed by

details of the loads and boundary conditions supported by the Patran ANSYS Application Preference.

Patran Interface to ANSYS Preference GuideLoads and Boundary Conditions

140

Loads & Boundary Conditions Form

The Loads and Boundary Conditions form is used to create ANSYS loads and boundary conditions. For

more information, see Loads and Boundary Conditions Form (p. 27) in the Patran Reference Manual.


The following table outlines the options when the Analysis Type is set to Structural.

Object Type

Displacement Nodal

Force Nodal

Pressure Element Uniform

Temperature Nodal

Inertial Load Element Uniform*

Voltage Nodal

Contact Element Uniform (ANSYS 5 Only)

Note: *Inertial Loads are shown as Element Uniform Type but actually apply to the entire model.

The following table outlines the options when the Analysis Code is set to Thermal.

Object Type

Temp (Thermal) Nodal

Convection Element Uniform

Heat Flux Element Uniform (ANSYS 5 Only)

Heat Source Nodal

Voltage (Thermal) Nodal


142

Static

This subordinate form appears when the Input Data button is selected when Static is the selected Load

Case Type. The information contained on this form will vary according to the selected Object. However,

defined below is information that remains standard to this form.

Object Tables

On the static input data form, there are areas where the load data values are defined. The data fields

presented depend on the selected Object and Type. In some cases, the data fields also depend on the

selected Target Element Type. These Object Tables list and define the various input data which pertain

to a specific selected object.


Displacement

Creates the ANSYS D command. All nonblank entries will generate prescribed displacements with the

D command.

Force

Creates the ANSYS F command.

Object Type Type

Displacement Nodal Structural

Input Data Description

Translations (T1,T2,T3) Defines the prescribed translational displacement vector. Components

of the vector are entered in model length units. The vector is not

transformed. The analysis coordinate frames of the nodes in the

application region are changed to the analysis coordinate frame

specified on this form.

Rotations (R1,R2,R3) Defines the prescribed rotational displacement vector. Components of

the vector are entered in radians. The vector is not transformed. The

analysis coordinate frames of the nodes in the application region are

changed to the analysis coordinate frame specified on this form.

Object Type Type

Force Nodal Structural


Force (F1,F2,F3) Defines the applied translational force vector with respect to the

specified analysis coordinate frame. This vector is transformed from the

specified analysis coordinate frame to the analysis coordinate frames of

the nodes in the application region before it is written to the F

command(s).

Moment (M1,M2,M3) Defines the applied rotational force vector with respect to the specified

analysis coordinate frame. This vector is transformed from the specified

analysis coordinate frame to the analysis coordinate frames of the nodes

in the application region before it is written to the F commands(s).


144

Pressure

Creates the ANSYS EP command for ANSYS Revision 4.4A. Creates the SFE command with the Lab

data field set to PRES for ANSYS Revision 5.

Creates the ANSYS EP command for ANSYS Revision 4.4A. Creates the SFE command with the Lab


Temperature

Object Type Type Dimension

Pressure Element Uniform Structural 2D


Top Surf Pressure Defines the top surface pressure on shell and/or plate elements which is

directed inward when positive.

Bot Surf Pressure Defines the bottom surface pressure on shell and/or plate elements

which is directed inward when positive.

Edge Pressure Defines the edge pressure on 2D solid elements which is directed

inward when positive. The IFACE data field of the EP command, or the

LKEY data field of the SFE command, varies based on the element

edges chosen in the application region. Top and/or bottom surface

pressures cannot be used in the same application region as edge

pressure.


Pressure Element Uniform Structural 3D


Pressure Defines the face pressure on solid elements which is directed inward

when positive. The IFACE data field of the EP command, or the LKEY

data field of the SFE command, varies based on the element faces

chosen in the application region.

Object Type Type

Temperature Nodal Structural


Creates the ANSYS T command for ANSYS Revision 4.4A. Creates the BF command with the Lab field

set to Temp for ANSYS Revision 5.

Inertial Loads

Creates the ANSYS ACEL, OMEGA, and DOMEGA commands. Inertial Loads are defined using a

custom form, as shown below, to define the input data. Since ANSYS Inertial Loads apply to the entire

model, no application region selection is permitted.

Voltage


Temperature Defines the nodal temperature values for a structural analysis.


Inertial Element Uniform Structural N/A

Object Type Type

Voltage Nodal Structural


146

Creates the ANSYS NT command with Lab set to VOLT for ANSYS Revision 4.4A. Creates the D

command with the Lab field set to VOLT for ANSYS Revision 5.

Contact (Deform-Deform)

Defines contact between two deformable structural bodies. For 2D and 3D models, contact bodies are

modeled by CONTAC48 and CONTAC49 elements, respectively. The entries on the Application Region

and Input Data forms are used to define Components, and appropriate ANSYS GCGEN, material (MP),

and real constant (R) commands are created. Contact LBCs are used only for nonlinear static analyses.


Voltage Defines the nodal voltage values for a structural analysis.

Object Type Type

Contact Element Uniform Structural


148


Contact Select Application Region (ANSYS 5)

Temperature (Thermal)

Object Type Type

Temp (Thermal) Nodal Thermal


150

Creates the ANSYS NT, TEMP command.

Convection

Creates the ANSYS EC command for ANSYS Revision 4.4A. Creates the SFE command with the Lab



Temperature Defines the prescribed temperature value.


Convection Element Uniform Thermal 2D


Top Surf Convection Defines the top surface film coefficient on shell elements.

Bot Surf Convection Defines the bottom surface film coefficient on shell elements.

Edge Convection Defines the edge film coefficient on 2D solid elements. The entry in the

IFACE data field of the EC command, or the LKEY data field of the

SFE command, varies based on the element edges chosen in the

application region. Top and/or bottom surface convections cannot be

used in the same application region as edge convection.

Ambient Temp Defines the sink temperature for the shell or 2D solid elements. This

produces an entry in the TBULK data field of the EC command, or in

the VAL1 data field of the SFE command.


Convection Element Uniform Thermal 3D


Creates the ANSYS EC command for ANSYS Revision 4.4A. Creates the SFE command with the Lab


Heat Flux

Creates the ANSYS SFE command. This is only supported by ANSYS Revision 5.


Convection Defines the film coefficient on faces of solid elements. The entry in the

IFACE data field of the EC command, or the LKEY data field of the

SFE command, varies based on the element faces chosen in the

application region.

Ambient Temp Defines the sink temperature for the solid elements. This produces an

entry in the T BULK data field of the EC command, or in the VAL1 data

field of the SFE command.


Heat Flux Element Uniform Thermal 2D


Top Surf Heat Flux Defines the top surface heat flux on shell elements. The Lab data field

of the SFE command is set to HFLUX.

Bot Surf Heat Flux Defines the bottom surface heat flux on shell elements. The Lab data

field of the SFE command is set to HFLUX.

Edge Heat Flux Defines the edge heat flux on 2D solid elements. The entry in the LKEY

data field of the SFE command varies based on the element edges

chosen in the application region. Top and/or bottom surface heat fluxes

cannot be used in the same application region as an edge heat flux.


Heat Flux Element Uniform Thermal 3D


152

Creates the ANSYS SFE command. This is only supported by ANSYS Revision 5.0.

Heat Source

Creates the ANSYS HFLOW command.

Voltage Thermal

Creates the ANSYS NT command with Lab set to VOLT for ANSYS Revision 4.4A. Creates the D

command with the Lab field set to VOLT for ANSYS Revision 5.


Heat Flux Defines the heat flux on faces of solid elements. The entry in the LKEY

data field of the SFE command varies based on the element faces chosen

in the application region.

Object Type Type

Heat Source Nodal Thermal


Heat Source Defines the applied nodal heat source.

Object Type Type

Voltage Nodal Thermal


Voltage Defines the nodal voltage values for a thermal-electric analysis.

153Chapter 2: Building A ModelLoad Cases

Load Cases

Load Cases in Patran are used to group a series of Load sets into one load environment for the model. A

load case is selected when preparing an analysis, not load sets. The individual load sets are translated into

the input options described in the Object Tables of the section on Loads and Boundary Conditions form.

If free-free modal analysis will be performed, a load case does not need to be chosen. There should be no

more than one load case specified for a modal analysis. Only one load case which defines the static pre-

load state should be specified in a Buckling analysis. The Buckling step is implied, and does not need to

be explicitly specified.

Patran Interface to ANSYS Preference GuideLoad Cases

154

Load Cases Form

The Patran Load Case form is used to Create, Modify, Delete, and Show load cases. It is also used to

prioritize Loads/BCs sets within a load case. For more information, see Load Cases Forms (p. 166) in

the Patran Reference Manual.

155Chapter 2: Building A ModelWavefront Optimization

Wavefront Optimization

Wavefront optimization can reduce the amount of computer time required to solve an analysis.

Optimization is one of the Actions under the Finite Element item on the Patran application switch. For

ANSYS, the form below shows the suggested setting. For more information, see Optimizing Nodes and

Elements (p. 206) in the Reference Manual - Part III.

Patran Interface to ANSYS Preference GuideWavefront Optimization

156

Chapter 3: Runn ing an Analysis

Patran I nterface to ANSY S Preference Guide

3 Running an Analysis

� Review of the Analysis Form 158

� Translation Parameters 161

� Solution Types 162

� Solution Parameters 163

� Select Load Cases 185

� Output Requests 186

Patran Interface to ANSYS Preference GuideReview of the Analysis Form

158

Review of the Analysis Form

The Analysis form appears when the Analysis toggle, located on the Patran main form, is chosen. This

form is used to request an analysis of the model with the ANSYS finite element program. This form is

also used to incorporate the contents of an ANSYS results file into the Patran database.

The Analysis form is used to prepare an ANSYS analysis, and is introduced on the next page, followed

by detailed descriptions of the subordinate forms. For further information, see The Analysis Form (p. 8)

in the MSC.Patran Reference Manual.

159Chapter 3: Running an AnalysisReview of the Analysis Form

Analysis Form

Set ACTION to Analyze to prepare an analysis run.

Patran Interface to ANSYS Preference GuideReview of the Analysis Form

160

The following table outlines the Object and Method selections when Analyze is the selected Action.

The Object indicates which part of the model is to be analyzed. There are two choices: Entire Model or

Current Group.

• Entire Model is the selected Object if the whole model is to be analyzed.

• Current Group is the selected Object if only part of the model is to be analyzed. Create a group

of that part, confirm it is the current group, then select Current Group as the Object. For more

information, see The Group Menu (p. 262) in the Patran Reference Manual.

The Method indicates how far the translation will be taken. There are three choices:

• Full Run: An Analysis Deck translation is done and the resulting input deck is submitted to

ANSYS for complete analysis.

• Check Run: An Analysis Deck translation is done and the resulting input deck is submitted to

ANSYS for a check run only. This is accomplished by including an ANSYS /CHECK command

in the input deck for ANSYS Revision 4.4A, or a /RUNSTAT and a RALL command in the input

deck for ANSYS Revision 5.

• Analysis Deck: The model is translated along with all of the loads and boundary conditions for

the selected load case(s). This will create a complete input deck, ready for ANSYS.

Object Method

Entire Model Full Run

Check Run

Analysis Deck

Current Group Full Run

Check Run

Analysis Deck

161Chapter 3: Running an AnalysisTranslation Parameters

Translation Parameters

This subordinate form appears when the Translation Parameters button is selected on the Analysis form.

Patran Interface to ANSYS Preference GuideSolution Types

162

Solution Types

This subordinate form appears when the Solution Type button is selected on The Analysis Form (p. 8) in

the MSC.Patran Reference Manual. It displays the available solution types for the analysis type chosen

on the Preferences>Analysis (p. 431) in the Patran Reference Manual. Only one solution type can be

used in an analysis, and the information that is requested on the Solution Parameters forms varies based

on this selection.

LINEAR STATIC will run the KAN, 0 analysis type for ANSYS 4.4A, or the ANTYPE, STATIC

analysis type for ANSYS 5.

NONLINEAR STATIC will also run the KAN,0 (ANSYS 4.4A) or ANTYPE, STATIC (ANSYS 5).

The Solution Parameters form will now show all parameters that apply to a Nonlinear Static analysis.

EIGENVALUE BUCKLING will run a static preload analysis using KAN, 0 or ANTYPE, STATIC

followed by either the /BUCKLE command for ANSYS 4.4A or the BUCOT command for ANSYS 5.

Note that when you select a load case for the eigenvalue buckling analysis you are selecting the load case

defining the static preload step.

MODAL will run the KAN, 2 analysis type for ANSYS 4.4A, or the ANTYPE, MODAL analysis type

for ANSYS 5.

HARMONIC will run the KAN, 3 (FULL) or KAN, 6 (REDUCED) analysis type for ANSYS 4.4A, or

the ANTYPE, HARMIC analysis type for ANSYS 5.

STEADY-STATE HEAT TRANSFER will run the KAN, -1 analysis type for ANSYS 4.4A, or the

ANTYPE, STATIC analysis type for ANSYS 5. For ANSYS 5 the degree(s)-of-freedom is used to

determine the analysis discipline. ANTYPE, STATIC defines the solver algorithms used within ANSYS.

163Chapter 3: Running an AnalysisSolution Parameters

Solution Parameters

Linear Static

This subordinate form appears when the Solution Parameter button is selected on the Analysis form when

Static is the selected Solution Type.

Patran Interface to ANSYS Preference GuideSolution Parameters

164

Nonlinear Static (ANSYS 4.4)

This subordinate form appears when the Solution Parameter button is selected on the Analysis form

when Nonlinear Static is the selected Solution Type and the Preference is set to ANSYS (ANSYS

Revision 4.4).


More data input is available for defining the Nonlinear Static Solution Parameters shown on the previous

page. Listed below are the remaining parameters contained in this menu.


Stepped=Boundary Conditions

Causes the analysis to step the boundary conditions rather than ramp them. If

selected, this will generate the KBC,1 command.

Large Deflection Analysis=

Causes the analysis to include the large deflection option in the solution. This

is the KAY,6, 1 command.

Include StressStiffening

If selected, this causes the analysis to include the effects of stress stiffening

in the analysis. This is the KAY,8, 1 command.

Virtual Wavefront Solution

If selected, this will cause ANSYS 4.4 to select a virtual equation solver for

analyses that cannot be solved in-memory. This is the KAY,10, 1 command.


166

Nonlinear Static (ANSYS 5)


Nonlinear Static is the selected Solution Type and the Preference is set to ANSYS 5.


168

Convergence Criteria

This subordinate form appears when the Convergence Criteria button is selected from the Nonlinear

Static Solution Parameters forms and the Preference is set to ANSYS 5.


Advanced Options (ANSYS 4.4)

This subordinate form appears when the Advanced Options button is selected from the Nonlinear Static

Solution Parameters forms and the Preference is set to ANSYS (ANSYS Revision 4.4).


170

Advanced Options (ANSYS 5)

This subordinate form appears when the Advanced Options button is selected from the Nonlinear Static

Solution Parameters forms and the Preference is set to ANSYS 5.


Eigenvalue Buckling (ANSYS 4.4)

This subordinate form appears when the Solution Parameter button is selected on the Analysis form

when Eigenvalue Buckling is the selected Solution Type and the Preference is set to ANSYS (ANSYS

Revision 4.4).


172

More data input is available for defining the Eigenvalue Buckling Solution Parameters shown on the

previous page. Listed below are the remaining parameters contained in this menu.


Mode Expansion Procedure

Defines the method to use for expanding modes. Available options are:

Expand First Mode Only, Expand No Modes and Expand N Modes. If

Expand N Modes is selected, the Number of Modes Databox will be active.

This is the KEXPM parameter on the ⁄BUCKLE command.

Number of Modes This will be active when the Mode Expansion Procedure is set to Expand

N Modes. The number entered in this databox will be used as the KEXPM

parameter on the /BUCKLE command.

Calculate Buckling Stresses

If selected, this will cause the KPSTR parameter of the /BUCKLE

command to be set to 1.


If selected, this will cause ANSYS 4.4A to select a virtual equation solver

for analyses that cannot be solved in-memory. This is the KAY,10, 1

command for ANSYS 4.4A. This option is not displayed if the Selected

Preference is “ANSYS 5.”


Eigenvalue Buckling (ANSYS 5)


Eigenvalue Buckling is the selected Solution Type and the Preference is set to ANSYS 5.


174

More data input is available for defining the Eigenvalue Buckling Solution Parameters shown on the



Mode Expansion Procedure

Defines the method to use for expanding modes. Available options are:

Expand First Mode Only, Expand No Modes and Expand N Modes. If

Expand N Modes is selected, the Number of Modes Databox will be active.

If Expand No Modes is the selected procedure, no MXPAND command and

no EXPASS command will be written. If Expand First Mode Only is

selected, the EXPASS, ON command and the MXPAND command will be

written with NMODE set to 1. If Expand N Modes is selected, the EXPASS,

ON and MXPAND command will be written. The value of NMODE will be

set by the data in the Number of Modes databox.

Number of Modes Becomes active when the Mode Expansion Procedure is set to Expand N

Modes. The number entered in this databox will be used as the NMODE

parameter on the MXPAND command.

Calculate Buckling Stresses

If selected, this will cause the ELCALC parameter of the MXPAND

command to be set to “YES.” Otherwise, the ELCALC parameter will be set

to “NO.”


Modal


Modal is the selected Solution Type.


176

More data input is available for defining the Modal Solution Parameters shown on the previous page.

Listed below are the remaining parameters contained in this menu.

Mode Expansion Parameters

This subordinate form appears when the Expansion Parameters button is selected from the

Mode/Frequency Solution Parameters form.


NormalizeShapes 12to Unity

Controls the normalization of the mode shapes. If it is selected, the

KPMOD parameter of theKAY,3 command will be set to the negative of

the value in the Number of Modes to Print databox for ANSYS 4.4.

If ANSYS 5 is being used, this will set the Nrmkey parameter of the

MODOP command to ON.

Include StressStiffening

If selected, this causes the analysis to include the effects of stress

stiffening in the analysis. This is the KAY,8, 1 command for ANSYS 4.4,

or the SSTIF, ON command for ANSYS 5.


If selected, this will cause ANSYS 4.4A to select a virtual equation

solver for analyses that cannot be solved in-memory. This is the KAY,10,

1 command for ANSYS 4.4. This option is not displayed if the Selected

Preference is “ANSYS 5.”

Expansion Parameters Brings up the subordinate form to allow definition of the parameters that

will control the expansion of the modes. See Mode Expansion

Parameters.


Harmonic


Harmonic is the selected Solution Type.


178

More data input is available for defining the Harmonic Solution Parameters shown on the previous page.

Listed below are the remaining parameters contained in this menu.


Output Format Defines the KPPHA parameter of the KAY,3 command for ANSYS 4.4 or

the REIMKY parameter of the HROUT command for ANSYS 5. Options

are Amplitude and Phase, or Real and Imaginary (default).

Mass Damping Value Defines the VALUE parameter of the ALPHAD command.

Stiffness Damping Value Defines the VALUE parameter of the BETAD command.

Damping Ratio Defines the RATIO parameter of the DMPRAT command.


Expansion Parameters (Multiple Solutions)

This subordinate form appears when the Expansion Parameters button is selected from the Harmonic

Solution Parameters form, and the Method of expansion is set to Multiple Solutions. The Expansion

Parameters button can only be selected if the solution method is Reduced.


180

More data input is available for defining the Multiple Solutions Expansion Parameters shown on the


Expansion Parameters (One Loadstep/Substep)


Solution Parameters form, and the Method of expansion is set to One loadstep/substep. The Expansion



Phase Angle Options Defines the KIMG parameter of the /STRESS command for ANSYS

4.4, or the ANGLE parameter of the HREXP command for ANSYS

5. Available options are All or Specify. If All is selected, KIMG is set

to 1 for ANSYS 4.4 or ANGLE is set to “All” for ANSYS 5.

Phase Angle Value Defines the PHASE parameter of the HARFRQ command for

ANSYS 4.4 or the ANGLE parameter of the HREXP command for

ANSYS 5. This databox is presented only if the Phase Angle Options

option menu is set to Specify.

Calculate Stresses and Reactions

Defines the ELCALC parameter of the NUMEXP command for

ANSYS 5. It has no effect for ANSYS 4.4.


Expansion Parameters (Specified Frequency)


Solution Parameters form, and the Method of expansion is set to Specified Frequency. The Expansion



182

Master Degrees of Freedom

This subordinate form appears when the Master Degrees of Freedom button is selected from the

Eigenvalue Buckling, Modal/Frequency or Harmonic Solution Parameters forms.

When running a modal analysis with ANSYS Revision 4.4 using Subspace extraction setting the Total

Master Degrees of Freedom to 0 (zero) and not selecting any DOF Lists will cause a Full Subspace

analysis to be performed. Otherwise, a Reduced Subspace Analysis will be performed.


Steady-State Heat Transfer


Steady-State Heat Transfer is the selected Solution Type.


184

More data input is available for defining the Nonlinear Transient Dynamic Solution Parameters shown

on the previous page. Listed below are the remaining parameters contained in this menu.


Uniform Temperature Defines the value of the uniform temperature for the analysis. The

value here will appear in the TUNIF command.

Reference Temperature Defines the value of the reference temperature for the analysis. The

value here will appear in the TREF command.

Virtual Wavefront Solution If selected, this will cause ANSYS 4. to select a virtual equation

solver for analyses that cannot be solved in-memory. This is the

KAY,10, 1 command for ANSYS 4.4. This option is not used for

ANSYS 5.

185Chapter 3: Running an AnalysisSelect Load Cases

Select Load Cases

This form appears when the Select Load Cases button is selected on the Analysis form. Use this form to

select a sequence of load cases to be included in the run.

Patran Interface to ANSYS Preference GuideOutput Requests

186

Output Requests

The Output Requests form is used to request results from the ANSYS analysis for use in postprocessing

results file, and verification (output file). After the desired results have been requested, the settings can

be accepted by selecting the OK button at the bottom of the form. If the Cancel button is selected instead,

the form will be closed without any changes being accepted. Selecting the Defaults button resets the form

to the initial default settings. The appearance of the form changes based upon the Preference selected.

Versions for ANSYS Revisions 4.4A and 5.0 are described in the following pages.

The results types brought into Patran, due to any of these requests, is documented in Results Created in

Patran. Tables are presented there which associate the ANSYS results items to the Patran primary and

secondary results labels.

187Chapter 3: Running an AnalysisOutput Requests

Output Requests Form

This subordinate form appears when the Output Requests button is selected on the Analysis form, and

the selected preference is ”ANSYS.”

Patran Interface to ANSYS Preference GuideOutput Requests

188

This subordinate form appears when the Output Requests button is selected on the Analysis form, and

the selected preference is “ANSYS 5.” This will produce OUTRES, and/or OUTPR commands.

Chapter 4: Read Results


4 Read Results

� Review of the Read Results Form 190

� Translation Parameters 193

� Select File 194

� Results Created in Patran 195

� Model Entities Created in Patran 204

� Delete Result Attachment Form 205

Patran Interfaces to ANSYS Preference GuideReview of the Read Results Form

190

Review of the Read Results Form

The Analysis form will appear when the Analysis toggle, located on the Patran main form,

is chosen.

Read Results as the selected Action allows you to read results data into the Patran database from an

ANSYS results file, or to access ANSYS results directly from the ANSYS results file (ANSYS Revision

5 and up only). For ANSYS Revision 4.4A, the results file name can be “jobname12.dat”, for a

binary (FILE12) file, or “jobname14.dat” for a text (FILE14) file. For ANSYS Revision 5, the

results file name can be “jobname.rst” for a structural analysis results file, “jobname.rth” for a

thermal analysis results file, or “jobname.rmg” for a magnetics analysis results file.

Other Analysis forms are used to define translation parameters and select the ANSYS results file. These

forms are described on the following pages.

191Chapter 4: Read ResultsReview of the Read Results Form

Read Results Form

This form appears when the Analysis toggle is selected on the main form. When Read Results is the

selected Action, the type of data to be read from the analysis code results file into Patran is defined.

Patran Interfaces to ANSYS Preference GuideReview of the Read Results Form

192

Flat File Results

In some cases, the translation will not be able to write the data directly into the Patran database. In those

cases, a text file will be created. This file contains instructions as to how this data is to be loaded into the

database. This file can be transferred between computers if necessary, then read into the proper database

using the File Import functionality. The full functionality of this form is described in Importing Results

(p. 190) in the Patran Reference Manual.

193Chapter 4: Read ResultsTranslation Parameters

Translation Parameters

This subordinate form appears when the Translation Parameters button is selected on the Analysis form.

Patran Interfaces to ANSYS Preference GuideSelect File

194

Select File

This form appears when the Select Results File button is selected on the Analysis form when Read

Results is the selected Action. The Select file form allows a specific file to be read.

Note: The default file filters will change depending on the Current analysis code in the

Preferences menu.

195Chapter 4: Read ResultsResults Created in Patran

Results Created in Patran

The following table indicates all the possible element results quantities which can be loaded into the

Patran database (or accessed from the ANSYS results file via the “Attach” method) when reading results

from ANSYS. The Primary and Secondary Labels are items selected from the postprocessing menus. The

Type indicates whether the results are Scalar, Vector, or Tensor. These types will determine which

postprocessing techniques will be available in order to view the results quantity. Result Label indicates

which ANSYS result label is associated with the data. The Description gives a brief discussion about the

results quantity.

Primary Label Secondary Label Type

Result Label Description

Angle Maximum

Interlaminar Shear

Scalar ILANG The angle of the shear stress

vector.

Failure Criteria Maximum Scalar VALUE The maximum value of the

failure criteria.

Failure Criteria Type Scalar FC The failure criteria number as

defined in ANSYS.

Force Vector MFOR(X,

Y,Z)

The components of the force

tensor.

Force Out of Plane Shear X Scalar NX The value of the element X out

of plane shear.

Force Out of Plane Shear Y Scalar NY The value of the element Y out

of plane shear.

Layer At Maximum Failure

Criteria

Scalar LN(FCMAX) The layer number where the

maximum failure criteria

occurred.

Layer Maximum

Interlaminar Shear

Scalar ILLN The layer number where the

maximum interlaminar shear

occurred.

Layer Total Number Scalar NL The total number of layers in

the composite laminated

element.

Moment Vector MMOM(X,Y,

Z)

The components of the

Moment tensor.

Pressure Foundation Scalar FOUND

PRESS

The value of the foundation

pressure.

Shell Forces Vector TX, TY The force per unit length in

shell elements.

Patran Interfaces to ANSYS Preference GuideResults Created in Patran

196

Shell Moment Vector MX, MY The moment per unit length in

shell elements.

Shear Force Shell Scalar TXY The shear force per unit length

in shell elements.

Shear Moment Shell Scalar MXY The shear moment per unit

length in shell elements.

Strain At Maximum Failure

Criteria

Scalar EP (FCMAX) The value of the strain for the

maximum failure criteria.

Strain Component Tensor EP The components of the strain

tensor.

Strain Creep Tensor EPCR The components of the creep

strain tensor.

Strain Equivalent Scalar EPEQ The value of the equivalent

strain.

Strain First Principal Scalar EP1 The value of the first principal

strain.

Strain Second Principal Scalar EP2 The value of the second

principal strain.

Strain Third Principal Scalar EP3 The value of the third principal

strain.

Strain Plastic Tensor EPPL The components of the plastic

strain tensor.

Strain Swelling Scalar EPSW The value of the swelling

strain.

Strain Thermal Tensor EPTH The components of the thermal

strain tensor.

Stress Component Tensor S or SIG The components of the stress

tensor.

Stress First Principal Scalar SIG1 The value of the first principal

stress.

Stress Second Principal Scalar SIG2 The value of the second

principal stress.

Stress Third Principal Scalar SIG3 The value of the third principal

stress.

Stress At Maximum Failure

Criteria

Scalar S (FCMAX) The value of the stress at the





Stress Axial Scalar SDIR The value of the axial stress in

a beam element.

Stress Beam - Maximum Scalar SIG1 The value of the maximum

stress in a beam element.

Stress Beam - Minimum Scalar SIG3 The value of the minimum

stress in a beam element.

Stress Bending -Z Scalar SBZ The beam bending stress on the

+Z side of the element.

Stress Bending -Y Scalar SBY The beam bending stress on the

-Y side of the element.

Stress Combined - 1 Scalar SDIR-

SBZ+SBY

The combined stress at output

point 1 for a beam element.

Stress Combined - 2 Scalar SDIR+SBZ+

SBY



Stress Combined - 3 Scalar SDIR-SBZ-

SBY



Stress Combined - 4 Scalar SDIR+SBZ-

SBY



Stress Equivalent Scalar SIGE The value of the equivalent

strain.

Stress Equivalent Plastic Scalar SIGEPL The value of the equivalent

plastic strain.

Stress Intensity Scalar S.I. The value of the stress

intensity.

Stress Maximum

Interlaminar Shear

Scalar ILMAX The maximum value of the

interlaminar shear stress.

Stress Ratio Scalar SRAT The value of the ratio of the

current stress to the stress on

the yield surface.

Stretch Scalar STRETCH The stretch of a spring.

Temperature Elemental Scalar TEMP The value of the element

temperature.

Twist Scalar TWIST The twist of a spring.

Velocity Axial Scalar VELOCITY Velocity for spring damping.




198

The following additional element results will be available from ANSYS Revision 5 results files.

Primary LabelSecondary

Label TypeResult Label Description

Coupled Field Force Vector Element nodal coupled field

forces.

Current Density Vector Element current densities.

Euler Angles Vector THXY,

THYZ,

THZX

Element Euler Angles.

Euler Angle Theta Scalar THETA Layered Shell layer rotation

angle.

Pressure Hydrostatic Scalar HPRES Element hydrostatic

pressure.

Plastic State Variable Scalar PSV The plastic state variable.

Work Plastic Scalar PLWK The plastic work per volume.

Volume Scalar VOLU The element volume.

Element Reaction Damping Force Vector Element nodal damping

forces.

Element Reaction Inertia Force Vector Element nodal inertia forces.

Element Reaction Force Vector Element nodal force.

Element Reaction Damping Moment Vector Element nodal damping

moments.

Element Reaction Inertia moment Vector Element nodal inertia

moments.

Element Reaction Moment Vector Element nodal moments.

Energy Elemental Scalar ENER Element energy associated

with the “stiffness” matrix.

Energy Kinetic Scalar KENE Element kinetic energy.

Stress Layer Maximum Scalar Stress for the layer with the


Strain Layer Maximum

Creep

Scalar Creep strain for the layer

with the maximum failure

criteria.



Plastic

Scalar Plastic strain for the layer


criteria.

Stress Shear Vector Sum Scalar ILSUM The vector sum of the shear

stress.

Strain Layer Maximum Scalar Strain for the layer with the


Temperature Layer Maximum Scalar Temperature for the layer


criteria.


Thermal

Scalar Thermal strain for the layer


criteria.


Swelling

Scalar Swelling strain for the layer


criteria.

Strain Axial Scalar EPEL,DIR Axial strain in one

dimensional elements.

Strain Bending Scalar EPEL, BYT

EPEL, BYB

EPEL, BZT

EPEL, BZB

Bending strain in one


Strain Thermal Axial Scalar EPTH, DIR Axial thermal strain in one


Strain Thermal Bending Scalar EPTH, BYT

EPTH, BYB

EPTH, BZT

EPTH, BZB

Thermal bending strain in

one dimensional elements.

Strain Swelling Axial Scalar EPSW, AXL Swelling strain in one


Strain Initial Axial Scalar EPIN, AXL Initial axial strain in one


Strain Plastic Axial Scalar EPPL, AXL Plastic axial strain in one





200

Strain Creep Axial Scalar EPCR, AXL Axial creep strain in one


Gradient Fluid Vector Fluid nodal field gradient.

Gradient Thermal Vector TG (X, Y, Z) Thermal nodal field gradient.

Gradient Electric Vector Electric nodal field gradient.

Gradient Magnetic Vector Magnetic nodal field

gradient.




Results which are not related to the elements are outlined in the table below. These results will generally

be from the Group 3 and/or Group 5 segments of the ANSYS 4.4A results file. For ANSYS 5, the results

will appear in the nodal solution section or the reaction force section of the results file. These results will

be available even if the element type used in a given analysis is not supported.

Flux Thermal Vector TF(X,Y,Z) Thermal nodal field flux.

Flux Electric Vector Electric nodal field flux.

Flux Magnetic Vector Magnetic nodal field flux.

Fluence Scalar FL Neutron flux * time.

Thickness Scalar THICK Thickness of Shell elements.

Area Scalar AREA The AREA real constant

repeated in the results file.

Length Scalar LENGTH The length of a one

dimensional element.

Form Factor Scalar FORM

FACTOR

The geometric form factor

for a radiation element.

Membrane Diagonal Tension

Angle

Scalar ANGLE Diagonal tension angles

between element x-axis and

tensile stress directions.

Membrane Status Scalar STAT Element status: tension

and/or collapse.

Force Inertia Vector Element inertia forces from a

transient analysis.

Force Damping Vector Element damping forces

from a transient analysis.


Label Type Result Label Description

Displacements Translational Vector 3 nodal solution The translational components

of the displacements (UX,

UY, UZ).

Displacements Rotational Vector 3 nodal solution The rotational components of

the displacements (ROTX,

ROTY, ROTZ).

Pressure Nodal Scalar 3 nodal solution Nodal pressures (PRES).

Temperature Nodal Scalar 3 nodal solution Nodal temperatures (TEMP).




202

Voltage Nodal Scalar 3 nodal solution Nodal voltages (VOLT).

Magnetic Potential Scalar Scalar 3 nodal solution Magnetic scalar potential

value (MAG).

Magnetic Potential Vector Vector nodal solution The Vector magnetic

potential (AX, AY, AZ).

Temperature Total Scalar nodal solution FLOTRAN result (TTOL).

Heat Flux Scalar nodal solution FLOTRAN result (HFLU).

Film Coefficient Scalar nodal solution FLOTRAN result (HFLM).

Conductivity Thermal Scalar nodal solution FLOTRAN result (TCON).

Pressure Coefficient Scalar nodal solution FLOTRAN result (PCOE).

Pressure Total Scalar nodal solution FLOTRAN result (PTOT).

Velocity Fluid Vector nodal solution The VX, VY, and VZ

FLOTRAN results from the

ANSYS 5 results file.

Energy Turbulent Kinetic Scalar nodal solution FLOTRAN result (ENKE).

Dissipation Rate Turbulent Scalar nodal solution FLOTRAN result (ENDS).

Mach Number Scalar nodal solution FLOTRAN result (MACH).

Stream Func. or

Velocity Mag.

Scalar nodal solution FLOTRAN result (STRM).

This is the stream function if

2D or the Velocity Magnitude

if 3D.




In addition to these standard results quantities, several Global Variable results can be created. Global

Variables are results quantities where one value is representative of the entire model. The following table

defines the Global Variables which may be created.

Density Static Scalar nodal solution FLOTRAN result (NDEN).

Viscosity Absolute Scalar nodal solution FLOTRAN result (NVIS).

Viscosity Effective Scalar nodal solution FLOTRAN result (EVIS).

Conductivity Effective Scalar nodal solution FLOTRAN result (ECON).

Nodal Reaction Reaction Force Vector 5 reaction force Components of the reaction

force at the nodes.

Nodal Reaction Reaction Moment Vector 5 reaction force Components of the reaction

Moment at the nodes.

Nodal Reaction Fluid Flow Scalar 5 reaction force The nodal flow value.

Nodal Reaction Heat Flow Scalar 5 reaction force The nodal heat value.

Nodal Reaction Amps Scalar 5 reaction force The nodal amp value.

Nodal Reaction Magnetic Flux Scalar 5 reaction force The nodal magnetic flux

value.

Nodal Reaction Magnetic Current

Segment

Vector reaction force The nodal magnetic current

segment.

Global Variable Label Group Description

Time Real Used with full harmonic, nonlinear transient dynamic, linear

transient dynamic, or transient heat transfer analyses.

Load Factor Real Used with buckling analyses.

Frequency Real Used with modal or reduced harmonic response analyses.

Subincrement Real The ANSYS iteration number.

Load Case Real The ANSYS load case number.

Harmonic Symmetry

Flag

Real Flag indicating if the loading was symmetrical (Flag = 1) or

anti-symmetrical (Flag = -1) for harmonic loading cases.



Patran Interfaces to ANSYS Preference GuideModel Entities Created in Patran

204

Model Entities Created in Patran

The following table describes the finite element model data that is translated from the ANSYS results file

into the Patran database when “Model Data” or “Both” is the selected Object. These entities should be

sufficient to allow postprocessing of the finite-element results.

Category Description

nodes The node number.

Nodal coordinates, in the global rectangular coordinate frame.

Analysis coordinate frame ID.

elements Element topology (e.g., quad 4 or hex 20).

Element connectivity is translated.

coordinate frames For ANSYS 4.4 results files, only ANSYS LOCAL coordinate frames are

translated.

For ANSYS 5 results files, the ANSYS global cylindrical (CS 1) and global

spherical (CS 2) coordinate frames are translated in addition to any ANSYS

LOCAL coordinate frames.

Note: The ANSYS elliptical option for the cylindrical and spherical coordinate frames and the toroidal coordinate frame are not supported. If these are encountered, a warning will be written in the message file (jobname.msg) and the frame will be translated as standard cylindrical, spherical or rectangular frames, respectively.

205Chapter 4: Read ResultsDelete Result Attachment Form

Delete Result Attachment Form

The following form may be used to remove a results attachment, created via the Attach method, from the

database.

Patran Interfaces to ANSYS Preference GuideDelete Result Attachment Form

206

Chapter 5: Read Input File


5 Read Input File

� Review of the Read Input File Form 208

� Data Translated from the ANSYS Input File 211

Patran Interfaces to ANSYS Preference GuideReview of the Read Input File Form

208

Review of the Read Input File Form

The Analysis form will appear when the Analysis toggle, located on the Patran main form,

is chosen.

Read Input File as the selected Action allows model data to be read into the Patran database from an

ANSYS input file. Patran can read two types of ANSYS input files. The first is the ANSYS input file

created by Patran,<jobname.prp>. The second type of file is the file produced by the ANSYS CDWRITE

command <jobname.cdb>. Currently, the input ile reader will only work with CDWRITE files that have

been produced by including the UNBLOCKED option in the CDWRITE command.

The reader will accept input files from either ANSYS version 4.x or 5.x.

Read Input File Form

It is possible to read an existing ANSYS input file (jobname.inp) into Patran. This is not a fully supported

feature and must be invoked by setting a special parameter. This is done by editing the settings.pcl

file and adding the following line:

pref_env_set_logical( "shareware_input_file", TRUE )

If this setting is set to TRUE, then an additional Action item appears under the Analysis form called Read

Input File. This file can exist in the installation, local or home directories.

Simply select the file from the file browser that appears when you pick the Select Input File button on

the Analysis Form.

The translator will import nodes, elements, coordinate frames, and basic materials, element properties,

and loads. See Supported Keywords.

This form appears when the Analysis toggle is selected on the main menu. Read Input File, as the selected

Action, specifies that model data is to be translated from the specified ANSYS input file into the Patran

database.

209Chapter 5: Read Input FileReview of the Read Input File Form

Patran Interfaces to ANSYS Preference GuideReview of the Read Input File Form

210

Selection of Input File

This subordinate form appears when the Select Input File button is selected on the Analysis form and

Read Input File is the selected Action. It allows the user to specify which ANSYS input file to translate.

211Chapter 5: Read Input FileData Translated from the ANSYS Input File

Data Translated from the ANSYS Input File

The following sections describe which specific ANSYS card types can currently be read into Patran.

The ANSYS cards described in this document are the only cards read when importing an ANSYS input

file into Patran. All non-supported cards will be ignored. When errors occur during the import of a

supported card type, the card being processed may or may not be imported, depending on the severity of

the problem encountered. An error message will be presented regardless of whether or not the offending

card is actually imported.

Any references from supported cards to cards that were not imported (either due to not being a supported

card type or due to serious import errors) will still be attempted. If this reference is required in Patran for

the card currently being processed, it too will fail to import. For example, if there is a serious error on a

N (node) card which causes it to not imported, then all elements attached to that node will also fail to

import.

Patran Interfaces to ANSYS Preference GuideData Translated from the ANSYS Input File

212

Supported Keywords

Node Description

N Node

NROT Node Rotate

Elements and Properties Description

ET Element type

EMOR Additional element data

EN Element connectivity

REAL Select Real Constant Set

R Real Constant data

RMOD Modify Real Constant Sets

RMOD Add real constant data to Sets

TYPE Select Element type

Loads and Boundary Conditions Description

D Degree of Freedom constraints

F Force

BFDE Deletes nodal body force loads

DDEL Deletes degree of freedom constraints

FDEL Deletes force loads on nodes

HFDE

SFED Deletes surface loads from elements

Materials Description

MAT Select Material

MP Define Material Property Data

MPTE Defines a temperature table for material properties

MPDA Defines property data to be associated with the temperature table

213Chapter 5: Read Input FileData Translated from the ANSYS Input File

Setup and Solution Commands Description

/TIT Define the Title

/STI Define the Subtitle

/SOL Enter the solution Processor

SOLV Solve

/PRE Enter the Preprocessor (PREP7)

FINI Finish

/BAT Run in Batch mode

/NOP Set no print option

/EXI Exit

/COM Comment

/EOF End of File

KAN Option

Patran Interfaces to ANSYS Preference GuideData Translated from the ANSYS Input File

214

Chapter 6: Delete


6 Delete

� Review of Delete Form 216

� Deleting an ANSYS Job 217

Patran Interfaces to ANSYS Preference GuideReview of Delete Form

216

Review of Delete Form

The Analysis form will appear when the Analysis toggle, located on the Patran main form, is chosen and

the selected Action is Delete.

The Delete option under Action allows the user to delete jobs that have been created for the ANSYS or

ANSYS5 preference.

217Chapter 6: DeleteDeleting an ANSYS Job

Deleting an ANSYS Job

This format of the Analysis form appears when the Action is set to Delete. The user may delete job

definitions that were created for the ANSYS or ANSYS5 preference with this form.

Patran Interfaces to ANSYS Preference GuideDeleting an ANSYS Job

218

Chapter 7: Files


7 Files

� Files 228

Patran Interfaces to ANSYS Preference GuideFiles

228

Files

There are several files either used or created by the Patran ANSYS Application Preference. The

following table describes each file and its uses. The occurrence of “jobname” in the definition will be

replaced with the jobname assigned by you. When using ANSYS Revision 4.4A, the first six characters

of the jobname will be used. This allows ANSYS to include the unit numbers in the file names it creates

without overwriting part of the jobname. For example, if the Patran jobname were ansys44job, the

ANSYS results file produced as a result of running an analysis from the Patran Analysis form would be

ansys412.dat. For ANSYS Revision 5, the first eight characters of the jobname will be used. The

Revision 5 version of the results file produced for a Patran jobname of ansys50job would be

ansys50j.rst. See the ANSYS User’s Manual for more information about jobname restrictions

when using ANSYS.

File Name Description

jobname.db This is the Patran database from which the model data is read during an

analyze pass, and into which model and/or results data is written during a

Read Results pass.

jobname.dba The ANSYS 5.0 database file is renamed to jobname.dba from

jobname.db to avoid conflicts with the Patran database.

jobname.jba

jobname.jbr

These are small files used to pass certain information between Patran and

the Application Preference during translation. You should never have

need to do anything directly with these files.

jobname.prp This is the ANSYS input file created by the interface.

jobname12.dat

jobname14.dat

These are the ANSYS Revision 4.4A binary or text results files which are

read by the Read Results pass.

jobname.rst

jobname.rth

jobname.rmg

These are the ANSYS Revision 5 structural, thermal, or magnetic results

files which will be read by the Read Results pass.

jobname.flat This file may be generated during a Read Results pass. If the results

translation cannot, for any reason, write data directly into the

jobname.db Patran database, it will create this jobname.flat file.

jobname.msg These message files contain any diagnostic output from the translation,

either forward or reverse.

AnsysSubmit This is a UNIX script file which is called on to submit the forward

PAT3ANS translation program, as well as to submit ANSYS after

translation is complete. This file should be customized for you particular

site installation.

229Chapter 7: FilesFiles

ResultsSubmit This is another UNIX script which is called on to submit the reverse

ANSPAT3 or ANS5PAT3 translation program. This file should also be

customized for your particular site.

*.res FLOTRAN binary results files. These can be read into Patran by using the

Import Results functionality of Patran for importing Patran 2.5 style

results files.See File Types and Formats (p. 46) in the Patran Reference

Manual.

*.rsf FLOTRAN text results files. These can be read into Patran by using the

Import Results functionality of Patran for importing Patran 2.5 style

results files. See File Types and Formats (p. 46) in the Patran Reference

Manual.

File Name Description

Patran Interfaces to ANSYS Preference GuideFiles

230

Chapter 8: Errors/Warnings


8 Errors/Warnings

� Errors / Warnings 232

Patran Interfaces to ANSYS Preference GuideErrors / Warnings

232

Errors / Warnings

There are a number of error or warning messages which may be generated by the Patran ANSYS

Application Preference.

In addition to the errors listed, a fatal error which cannot be trapped by the translator sometimes occurs.

This error occurs when anspat3 is translating many results on a machine with a relatively small “/tmp”

directory. When results are being translated into a Patran database, the Patran database must sort the

results before they are stored permanently. In order to sort these results, it must create relatively large

files in the /tmp directory of the working machine. The names of these files are gds_sort_xxx. If

there is not enough room in the /tmp directory for these files, the sorting will fail and the results will not

be sorted. This error is usually accompanied by messages such as, “write failed: file system

full: directory /tmp” appearing in the console window. The Patran database needs to be

instructed to create these gds_sort_xxx files elsewhere by declaring an environment variable TMP,

and setting it to the targeted directory. For example, setenv TMP /myscratch.

Alternatively, augment the size of the current machines’ “/tmp” directory, or run the translation on a

machine with a larger /tmp directory.

The following table describes the messages that may be generated while creating an input deck.

Message Description

Unable to open the specified database, “...”.

The program was unable to open the Patran database

specified. Check file permissions mode.

Unable to open the ANSYS input file “...”.

The program was unable to open the input file (*.prp)

specified. Check file permissions mode.

WARNING: No element properties were detected in the database.

No element properties were found in the database.

Without element properties, no elements can be created.

No materials were detected in the database.

No material properties were found in the database. This

may not be a problem if the elements used do not require

material properties.

WARNING: None of the element property regions have properties defined for them.

Element properties may have been created then deleted.

Check the element properties definitions in Patran.

WARNING: No elements were detected in the database for group “...”. Translation continuing.

No elements were found in the database for the specified

group. Translation will continue without creating

elements.

No loads or boundary conditions were detected for load case “...”.

No loads or boundary conditions were found in the

database associated with the specified load case name.

Check the load case definition in Patran.

233Chapter 8: Errors/WarningsErrors / Warnings

The loads or boundary conditions “...” is of a type that the PAT3ANS translator does not currently support.

The loads or boundary conditions specified is not

currently supported by Patran ANSYS. Change the loads

or boundary conditions to one that is supported.

Time dependent fields are currently not supported. The field referenced in the loads or boundary condition “...” will not appear in the input file.

Time dependent loads or boundary conditions are not

supported by Patran ANSYS.

No material properties were defined for “...”.

A material name exists in the Patran database with no

properties associated to it. Check Patran material

definitions.

No load cases were specified for the analysis.

No load cases were specified for an analysis type that

requires load cases to be defined.

The elements in region “...” are of a type that the PAT3ANS translator does not currently support.

The elements in the specified region are not currently

supported by the Patran ANSYS interface.

The number of layers is set to INT which is not allowed for STIF number INT.

An illegal number of layers is specified for an ANSYS

element.

The elements in region “...” are of STIF type INT which requires a laminated material.

The elements in the specified region require the use of a

laminated material.

The orientation node INT for element INT was not found in the database.

The orientation node for a bar element was not defined.

WARNING: A loading was applied to a face or edge that is not supported in ANSYS. LBCs case is “...”. Translation is continuing without this loading.

A loading was applied to an element in a manner that

ANSYS does not support.

WARNING: HEAT FLUX is not supported by ANSYS Release 4.X. You must have ANSYS Release 5.X to use HEAT FLUX. Translation is continuing without this loading.

The heat flux lbcs is not supported in ANSYS Revision

4.4A. To use this lbc, you must run ANSYS Revision 5.

Translation will continue without this loading.

Message Description


234

WARNING: Nonzero coefficients are ignored in MPC # INT.

For future use with implicit MPCs.

Error translating mpc # INT. Recheck mpc geometry.


DOF was required at node INT for Patran MPC #.


The number of total nodes in an “...” MPC must be INT times the number of dependent nodes.


Unknown node INT referenced in “...” type MPC.


Unknown coordinate frame INT referenced by MPC INT.


MPC # INT not translated. For future use with implicit MPCs.

An unrecognized degree-of-freedom was found while “...”.

A DOF was specified that is not recognized by Patran

ANSYS.

No independent term was found for MPC number INT, of type “...”.

The specified MPC did not contain a definition for the

required independent term. Specify an independent term

and resubmit.

No dependent term was found for MPC number INT, of type “...”.

The specified MPC did not contain a definition for the

required dependent term. Specify a dependent term and

resubmit.

More than the allowed number of INT were specified for the MPC set. The maximum number allowed for a “...” type mpc is INT.

ANSYS 4.4 restricts the number of terms in an MPC set

to 199. Reduce the number of terms specified below the

allowed number and resubmit.

WARNING: An unsupported MPC type was detected for MPC number INT. Translation continuing without this MPC.

The MPC type selected is not supported by Patran

ANSYS. Translation will continue without creating this

MPC type.

The translation must be resubmitted from the Analysis form.

The loads and boundary conditions applied to geometry

were not evaluated onto the finite elements model. The

analysis must be resubmitted from the analysis form to

cause the evaluation of the loads and boundary

conditions.

Message Description

235Chapter 8: Errors/WarningsErrors / Warnings

The following errors or warnings may be generated while reading the analysis results into the Patran

database.

Message Description

ANSYS element STIF# is not supported by the translator. Execution proceeding without this element type.

An element of the specified STIF number was detected in

the ANSYS results file that is not supported by the Patran

ANSYS interface. Translation is continuing without using

this element type.

Input Results File is From Pre 4.2 Version of ANSYS. Translation Stopped.

The ANSYS results file was created with a version of

ANSYS prior to Revision 4.2 and cannot be translated.

Illegal STIF number (#) detected in ANSYS results file. Execution stopped.

An element type number was detected that is not in the

allowable range for an ANSYS element.

Error translating ANSYS Group 5 (Reaction Force) data block. Translation Stopped.

An error was encountered translating the Group 5 data

block in the ANSYS results file.

Error Adding ANSYS Group 5 (Reaction Force) data to database. Translation Stopped.

An error was encountered while adding Group 5 data to the

Patran database.

Error translating displacements. Translation Stopped.

An error was encountered translating the displacement data

block (Group 3) of the ANSYS results file.

The element number# of type STIF No. =# with shape =”...” is not supported. Translation is continuing without this element.

The specified element with ANSYS STIF number and the

specified shape is not supported by the Patran ANSYS

interface. Translation will continue without this element.

Error while translating local coordinate systems. Translation Stopped.

An error occurred while translating local coordinate

systems from the ANSYS results file.

An Unsupported Toroidal coordinate system (Number #) was encountered. It was translated as a rectangular coordinate system. NOTE: Results referring to this coordinate system may be improperly displayed.

The specified coordinate system number is a Toroidal

coordinate system that is not currently supported by Patran.

A rectangular coordinate system was created. This will

cause results that reference this coordinate system to be

improperly displayed.


236

An Unsupported Elliptical “...” coordinate system (Number #) was encountered. It was translated as a “...” coordinate system. NOTE: Results referring to this coordinate system may be improperly displayed.

An elliptical, cylindrical or spherical coordinate system of

the specified number was found in the ANSYS results file.

Patran does not support the elliptical systems. The

coordinate system will be translated as a standard

cylindrical or spherical coordinate system. This may cause

the results to be improperly displayed.

The configuration of element # is currently not supported for STIF number #.

The topology specified in the ANSYS results file for the

specified element is not supported for the element type

specified.

WARNING: INT Nodes were not found while adding “...” results.

The specified number of nodes were not found in the model

when trying to add the named results. These results will not

appear in the database.

Error reading the ANSYS results file. Error occurred while “...”.

An error occurred while reading the ANSYS results file

while attempting to perform the named function.

File “...” does not exist. Translation stopped.

The specified file does not exist in the users path.

Translation will not continue.

Error while initializing ANSYS binary file using ANSYS BINSET routine.

An error occurred by initializing the ANSYS result file

using the ANSYS BINSET routine. The translation will not

continue.

Error while reading the ANSYS results file standard header. Translation stopped.

An error occurred while reading the standard header from

the ANSYS results file. Translation will not continue.

The selected file, “...”, is not an ANSYS 5 results file. Translation stopped.

The specified file was not created by ANSYS Revision 5

and can not be translated.

Error while translating element results for “...” data.

An error occurred while translating the element results for

the specified data. Translation will not continue.

Message Description

jp`Kc~íáÖìÉ=nìáÅâ=pí~êí=dìáÇÉ

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Index

AACEL, 145

BBEAM3, 94

BEAM4, 72

BEAM44, 80

BEAM54, 101

BF, 145

CCE, 21, 22

CERIG, 21, 24, 25

COMBIN14, 85, 86, 128

COMBIN40, 91, 129

composite

laminated, 63

CONTAC12, 88

CONTAC52, 87

contact, 141

convection, 141, 150

coordinate frames, 16

CP, 21, 26, 28

DD, 143, 146, 152

displacement, 143

displacements, 141

DOF List, 26

DOMEGA, 145

EEC, 150

element properties, 65

0D, 67

1D, 67

2D, 67

3D, 68

elements, 19

EN, 19

EP, 144

FF, 143

files, 228

.db, 228

.dba, 228

.flat, 228

.jba, 228

.jbr, 228

.msg, 228

.prp, 228

.res, 229

.rmg, 228

.rsf, 229

.rst, 228

.rth, 228

12.dat, 228

14.dat, 228

AnsysSubmit, 228

ResultsSubmit, 229

flat file results, 192

force, 141, 143

Hheat flux, 141, 151

heat source, 141, 152

HFLOW, 152

Iinertial loads, 145

inertial_load, 141

Llaminate, 63

LINK1, 83


238

LINK10, 89

LINK31, 126

LINK32, 127

LINK33, 124

LINK34, 125

LINK8, 84

load cases, 153

loads and boundary conditions, 139, 140

LOCAL, 16

MMASS21, 69, 70, 71

MASS71, 123

materials, 29

3D orthotropic, 41, 49

3D orthotropic (thermal), 59, 61

composite, 63

isotropic, 32, 34, 35, 43

isotropic (thermal), 57

MP, 33, 41, 57, 60

MPDATA, 33, 41, 57, 60

MPTEMP, 33, 41, 57, 60

multi-point constraints, 20

multi-point constraints

CP, 21, 26

degrees-of-freedom, 21

explicit, 21, 22

rigid (fixed), 21, 24

rigid (pinned), 21, 25

NN, 18

NL, 36, 37, 45, 46

nodes, 18

NROTAT, 16, 18

NT, 146, 150, 152

OOMEGA, 145

PPLANE2, 109, 110

PLANE35, 131, 133

PLANE42, 109, 110

PLANE55, 131, 133

PLANE77, 131, 133

PLANE82, 109, 110

pressure, 141, 144

Rread results, 191

results

global variables, 203

table, 195

results files

FILE12, 190

FILE14, 190

model entities translated, 204

rmg, 190

rst, 190

rth, 190

SSFE, 144, 150, 151

SHELL28, 114, 115

SHELL41, 111

SHELL43, 105

SHELL51, 92

SHELL57, 131

SHELL63, 103, 108

SHELL91, 64, 107

SHELL93, 105

SHELL99, 64, 105

SOLID45, 118

SOLID46, 64, 120

SOLID7, 119

SOLID70, 136

SOLID72, 119

SOLID87, 136

SOLID90, 136

SOLID92, 118

SOLID95, 118

TT, 145

TEMP, 150

temp (thermal), 141, 149

temperature, 141, 144

TREF, 159, 160, 161, 162, 163, 164, 165, 166,

171, 172, 173, 175, 176, 177, 178, 179, 180,

239INDEX

181, 183, 184, 185, 186, 188

VVOLT, 146

voltage, 141, 145

voltage thermal, 141, 152

Wwavefront optimization, 155


240

patran 2008 r1 interface to ansys preference guide

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