Fatigue In Conventional and Advanced Materials
Mechanical Engineering
Faculty of Engineering
First Cycle (Bachelor's Degree)
| Course Unit Title | Course Unit Code | Type of Course Unit | Level of Course Unit | Year of Study | Semester | ECTS Credits |
|---|---|---|---|---|---|---|
| Fatigue In Conventional and Advanced Materials | MTH405 | Elective | Bachelor's degree | 4 | Fall | 6 |
Name of Lecturer(s)
Assistant Prof. Dr. Okan GÜL
Learning Outcomes of the Course Unit
1) Causes of failure and fracture in buildings, types of damage, damage analysis steps, fracture mechanisms and factors
2) S-N curves, endurance limits, notches and stress concentrations
3) Plastic stress factors, low and high cycle fatigue, transition life, cyclic softening hardening
4) Load history analysis, cycle counting techniques, cumulative damage, miner theory
5) Phases in fatigue life, crack growth, advanced cracking and fracture
6) Dislocations, fatigue and fracture surfaces, crack formation and strength
7) Potential energy and surface energy, crack stress analysis, thickness toughness fracture relationship
8) Stress intensity factors for typical geometries
9) Safe life, safe design, fatigue tests
10) Crack failure in aerospace structures
11) Crack failure in composite materials and structures
Program Competencies-Learning Outcomes Relation
| Program Competencies | ||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | ||
| Learning Outcomes | ||||||||||||||||||||
| 1 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 2 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 3 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 4 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 5 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 6 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 7 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 8 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 9 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 10 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
| 11 | Low | Middle | High | Middle | Middle | Low | Low | Low | Low | No relation | High | Low | Low | Low | No relation | High | Middle | Low | Low | |
Mode of Delivery
Face to Face
Prerequisites and Co-Requisites
None
Recommended Optional Programme Components
Not Required
Course Contents
We aim to ensure that participants understand fatigue failure criteria, apply these criteria, and evaluate the safety factor to predict the safety of structures under working loads. This training aims to enable participants to understand the fatigue failures of structures, fatigue mechanisms, fatigue lives, fracture surfaces and statistical aspects of fatigue behavior. Participants will learn to understand fatigue failure criteria, improve their ability to apply and evaluate the safety factor of structures under working loads, and understand the fracture mechanics design concept. They will also gain the skills to perform fatigue design and testing and apply safe life and fail-safe design philosophies.
Weekly Schedule
1) Causes of failure and breakage in buildings, types of damage, damage analysis steps2) Fracture mechanisms and factors
3) S-N curves, endurance limits, notches and stress concentrations
4) Plastic stress factors, low and high cycle fatigue, transition life, cyclic softening hardening
5) Load history analysis, cycle counting techniques, cumulative damage, miner theory
6) Phases in fatigue life, crack growth, advanced cracking and fracture
7) Dislocations, fatigue and fracture surfaces
8) Midterm examination/Assessment
9) Crack formation and strength
10) Potential energy and surface energy, crack stress analysis, thickness toughness fracture relationship
11) Stress intensity factors for typical geometries
12) Safe life, safe design
13) Fatigue tests
14) Crack failure in aerospace structures
15) Crack failure in composite materials and structures
16) Final examination
Recommended or Required Reading
Planned Learning Activities and Teaching Methods
1) Lecture
2) Question-Answer
3) Problem Solving
Assessment Methods and Criteria
Contribution of Semester Studies to Course Grade |
40% |
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Contribution of Final Examination to Course Grade |
60% |
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Total | 100% | |||||||||||
Language of Instruction
English
Work Placement(s)
Not Required