# Syllabus (download pdf file)

**Instructor:**

Asst.Prof.Dr.Turgut AKYÜREK

e-mail: turgutakyurek@cankaya.edu.tr

Office: LA18

Office Telephone: 2331303

**Lecture Hours:**

Section 1 Monday 09:20–11:10 @M101, Friday 10:20–11:10 @LA14

Section 2 Monday 11:20–13:10 @HA04, Friday 09:20–10:10 @LA14

**Office Hours:** Friday 12:20-13:10. Appointments are accepted.

**Web site:** http://me202.cankaya.edu.tr

**Course Description: **The course covers the following topics; stress and strain concepts, axial load, statically indeterminate axially loaded members, thermal stress, torsion, angle of twist, statically indeterminate torque-loaded members, bending, eccentric axial loading of beams, transverse shear, shear flow in build-up members, combined loadings, stress and strain transformation, deflection of beams and shafts, statically indeterminate beams and shafts.

**Course Objectives:**

1. To 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.

**Course Material:** Text Book is “Mechanics of Materials, 6^{th} Edition Beer, Johnston, DeWolf, McGraw-Hill, 2012, ISBN 978-0-07-338028-5.”

Lecture notes are to be provided via the web site of the course (possibly before the lecture hour) as pdf files. These files will include PowerPoint slides presented in the class. Study sets will be posted on course’s web site at the beginning of each chapter. It is strictly recommended that the students review the topics by working on these study sets given for student’s benefit.

**Examinations: **There will be 2 mid-term examinations, 1 final examination, and 5 quizzes.

**Assignments: **Homework will be assigned 5 times. The students should do the homework, but will not be submitted for evaluation. They are to make the student ready for exams. They will be not be assessed within the overall grade of the student.

**Attendance: **According to the university regulations, students must attend at least 70 % of the lecture hours. Otherwise, the student gets NA (Not attended) from the course. Valid excuses are exempt from computation of these percentages.

Apart from the university regulations, it is of student’s benefit to attend all of the lecture hours..

**Grading: **Overall final grade will be over 1050 points. Weight of each grading item will be as below. Quiz question will be from the related homework.

MT-1 exam grade over 200

MT-2 exam grade over 250

Final exam grade over 300

Quiz grades over 250 (5 x 50__)__

__+ Attendance over 50 (for >70%)__

** **Final grade over 1050

All the announcements, including the examination dates will be posted on the course web site.

**Reference Books:**

**Mechanics of Materials,** 9^{th} Edition, Hibbeler, R.C.,Pearson Prentice Hall, 2014, ISBN: 9780133254426

**Engineering Mechanics of Solids**, E. P. Popov, Prentice-Hall,

**Tentative weekly course schedule:**

Chapter | Week | Subject | |
---|---|---|---|

1 | Introduction-Concept of Stress | 1 | Equilibrium of deformable body, average normal and shear stress, bearing stress, allowable stress, factor of safety, deformation. |

2 | Stress and Strain - Axial Loading | 2 | Normal and shear strain, the tension test, Hooke's law, Poisson's ratio. |

3 | Elastic deformation of axially loaded members, principle of superposition, statically indeterminate axially loaded member,thermal stress. | ||

3 | Torsion | 4 | The torsion formula, power tranmission. (HW1, Quiz 1) |

5 | Statically indeterminate torque-loaded members. | ||

4 | Pure Bending | 6 | Shear and moment diagrams, the flexure formula. (HW2, Quiz 2) |

7 | Bending of composite beams, stress concentrations, eccentric axial loading, un-symmetric bending (MT1) | ||

6 | Shearing Stress in Beams and Thin-Walled Members | 8 | The shear formula, shear stresses in beams, shear flow in built-up members. |

7 | Transformation of Stress and Strain | 9 | Plane stress transformation, general equations of plane stress transformation. (Hw3, Quiz 3) |

10 | Mohr's circle. | ||

11 | Plane strain, Mohr's circle, failure criteria. | ||

8 | Principal Stresses Under a Given Loading | 12 | State of stress caused by combined loading. (HW4, Quiz 4) |

9 | Deflection of Beams | 13 | The elastic curve, slope and displacement by integration method (MT2). |

11 | Energy Methods | 14 | Strain energy, strain energy density, strain energy for normal stress, shearing stress and general state of stress, work and energy under single and several loads, Catigliano's theorem. (HW5, Quiz 5) |