department of highway and bridges college of technical ......of failure for static loading. 5....

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Ministry of Higher Education and Scientific research Directorate of Quality Assurance and Accreditation به ڕێوه به رایهتم جۆری و میای دڵنی تی انه به خشینDepartment of Highway and Bridges College of Technical Engineering University of Polytechnic Duhok Subject: Strength of Materials Course Book – (Year 2) Lecturer's name: Mr. Hawar Hasan Jasim Academic Year: 2017/2018

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Page 1: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

Department of Highway and Bridges

College of Technical Engineering

University of Polytechnic Duhok

Subject: Strength of Materials

Course Book – (Year 2)

Lecturer's name: Mr. Hawar Hasan Jasim

Academic Year: 2017/2018

Page 2: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

Course Book

1. Course name Strength of Materials

2. Lecturer in charge Mr. Hawar Hasan Jasim

3. Department/ College Highway and Bridges / Technical Engineering

4. Contact e-mail: [email protected] Tel: 0750 482 1742

5. Time (in hours) per week Theory: 6 Practical: Non

6. Office hours Tus (8:30-12:30), Wed (8:30-12:30)

7. Course code HE 1201 8. Teacher's academic profile

9. Keywords Mechanics of materials, Strength of materials, Structural Engineering, Civil Engineering, Structural analysis.

10. Course overview: The course covers the following topics; stress and strain concepts, axial load, statically indeterminate

axially loaded members, thermal stress, torsion, angle of twist, , bending, eccentric axial loading of

beams, transverse shear, shear flow in build-up members, combined loadings, stress and strain

transformation, design of beams and shafts.

11. Course objective: The Course objective is to:

1. Provide the basic concepts and principles of strength of materials.

2. To give an ability to calculate stresses and deformations of objects under external loadings.

3. To give an ability to apply the knowledge of strength of materials on engineering applications and

design problems.

12. Student's obligation Tardiness is not acceptable. Attendance includes particapating in the lecture, bringing required

supplies and support materials, and remaning the entire three hours.

Non-excused absences includes oversleeping, automobile breakdown, no parking space and

transporting roomate to doctor.

All homework assignments are due at the begging of the class unless otherwise noted

Make arrangments with your professor before your absence from class unless otherwise noted.

Page 3: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

13. Forms of teaching 1. Power point slides

2. White board

3. Handout.

14. Assessment scheme Assignments (Quizzes and Homeworks): 10%

Exam : 30% Final Exam: 60% 15. Student learning outcome: Students who successfully complete this course will have demonstrated an ability to:

1. Understand the concepts of stress and strain at a point as well as the stress-strain relationships for

homogenous, isotropic materials.

2. Calculate the stresses and strains in axially-loaded members, circular torsion members, and members

subject to flexural loadings.

3. Calculate the stresses and strains associated with thin-wall spherical and cylindrical pressure vessels.

4. Determine the stresses and strains in members subjected to combined loading and apply the theories

of failure for static loading.

5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses acting on a

structural member.

6. Design simple bars, beams, and circular shafts for allowable stresses and loads.

16. Course Reading List and References:

R.C. Hibbeler, Mechnics of Materials, Eghith Edition, Pearson Prentice Hall, Upper Saddle River,

New Jersey, 2011. Egor,P.,Popov , Engineering Mechanics of Solids, Prentice-Hall International Series in Civil Engineering

and Engineering Mechanics, Prentice Hall (January 1, 1990). Handouts and websites

17. The Topics: Lecturer's name

Ch1: Introduction-Concept of Stress

Ch2: Stress and Strain-Axial Loading

Ch3: Torsion

Ch4: Shear and Moment in Beams

Ch5: Stresses in Beams

Ch6: Stresses due to Combined Loads

Ch7: Stress Transformation

Ch8: Strain Transformation

Mr. Hawar Hasan Jasim 12hr 9hr 9hr 9hr 9hr 9hr 9hr 9hr

18. Practical Topics (If there is any)

Page 4: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

not found.

19. Examinations: Q1: Using Mohr’s circle, Determine the equivalent state of stress if an element is

oriented 45° clockwise from the element shown.

Solution:

Q2: The shaft is supported by smooth journal bearings at A and B that only exert

vertical reactions on the shaft. If d = 90 mm, determine the absolute maximum bending

stress in the beam.

Page 5: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

Solution:

Q3: If the vertical displacements of end A of the high strength precast concrete column

relative to B and B relative to C are 0.08 in. and 0.1 in., respectively, determine the

magnitudes of P1 and P2.

Page 6: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

Solution

20. Extra notes:

Page 7: Department of Highway and Bridges College of Technical ......of failure for static loading. 5. Determine and illustrate principal stresses, maximum shearing stress, and the stresses

Ministry of Higher Education and Scientific research

Directorate of Quality Assurance and Accreditation خشینبهانهتی دڵنیایی جۆری و متمرایهبهڕێوهبه

21. Peer review