Syllabus
| Methods of Instruction |
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| Semester | Fall 2018 – 2019 | |||||||||||||
| Instructor | Tufan GÜNGÖREN | |||||||||||||
| Assistant | - | |||||||||||||
| Schedule | Lecture Hours: Tuesday 09:20-12:10 |
Course Description
This course is designed to cover the following subjects: understanding failure formation; damage mechanisms such as fatigue, wear, corrosion, creep and other mechanical failures; procedural approaches in failure analysis; metallographic and fractographic studies. Mechanisms in overload, fatigue, impact and creep failures will be discussed in detail. The primary aim of this course is to provide general knowledge on the procedures and mechanisms involved in failure analysis.
Text book:
1) W.D. Callister, Jr., D.G. Rethwisch, Materials Science and Engineering: An Introduction, John Wiley & Sons, 2009.
2) G.E. Dieter, Mechanical Metallurgy (SI Metric Edition), McGraw-Hill, 1988.
3) W.F. Hosford, Mechanical Behavior of Materials, Cambridge University Press, 2009.
Reference Books:
1) A.J. McEvily, J. Kasivitamnuay, Metal Failures: Mechanisms, Analysis, Prevention, Wiley-Interscience, 2013.
2) I. Milne, R.O. Ritchie, B.L. Karihaloo (Eds.), Comprehensive Structural Integrity, Elsevier, 2006.
Attendance
70% attendance of all lecture hours is required by the Instructor in accordance with the university’s regulations. Absence from a quiz, lab. or an examination will result in zero grade.
Grading Scheme:
|
Midterm 1 |
25% |
|
Midterm 2 |
25% |
|
Final |
40% |
|
HW+Quiz |
5% |
| Attendance |
5% |
Tentative Course Outline
|
Week |
Topics |
Reading |
|
1 |
Introduction, Fundamentals of fracture – definitions, Fracture modes, Ductile fracture |
Chapter 8 |
|
2 |
Brittle Fracture, Cleavage and intergranular fractures |
Chapter 6, 8 |
|
3 |
Fracture mechanics, Stress concentration, the Griffith criterion, Fracture toughness |
Chapter 7, 8 |
|
4 |
Fracture mechanics (contd.), Sample problems |
Chapter 8 |
|
5 |
Fractography of ceramics |
Chapter 8 |
|
6 |
Impact fracture testing, The ductile-to-brittle transition |
Chapter 8 |
|
7 |
The ductile-to-brittle transition temperature (DBTT), Metallurgical factors affecting the DBTT |
Chapter 7, 8 |
|
8 |
Fatigue, the Wöhler curve, Fatigue probability curves |
Chapter 8 |
|
9 |
Crack initiation and crack propagation in fatigue |
Chapter 8 |
|
10 |
Beachmarks and striations, the Paris-Erdogan equation |
Chapter 8 |
|
11 |
Environmental factors affecting fatigue, design against fatigue |
Chapter 7, 8 |
|
12 |
Creep, Steady-state creep, Effects of stress and temperature on creep |
Chapter 5, 8 |
|
13 |
Creep mechanisms, Linear-viscous creep, Power-law creep |
Chapter 7, 8 |
|
14 |
Diffusion and Dislocation creep, the Larson-Miller parameter, High temperature alloys, Student Presentations |
Chapter 7, 8 |