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- Common courses
- Liberal arts and basic science courses
- Academic unit or major
- Undergraduate major in Mechanical Engineering
- Instructor(s)
- Todoroki Akira Mizutani Yoshihiro
- Class Format
- Lecture (Face-to-face)
- Media-enhanced courses
- Day/Period(Room No.)
- Fri3-4(I1-256(I121))
- Group
- -
- Course number
- MEC.C331
- Credits
- 1
- Academic year
- 2024
- Offered quarter
- 2Q
- Syllabus updated
- 2024/3/14
- Lecture notes updated
- -
- Language used
- Japanese
- Access Index
-
Course description and aims
Based on the fundamentals of mechanics learned in Mechanics of Materials and Elastoplastic Mechanics, the instructor will teach the points listed below.
1.Introduction of material strength and failure rule
2. Energy release rate and stress intensity factor
3. Principle of superposition, relationship between stress intensity factor and energy release rate
4. Effect of plastic deformation, small scale yielding and Fracture toughness test
5. Fracture resistance curve, brittleness at low temperature and dynamic fracture
6. Fatigue failure, stress corrosion cracking and creep fracture
Student learning outcomes
By the end of this course, students will be able to:
1. Understanding of Introduction of material strength and failure rule
2. Understanding of Energy release rate and stress intensity factor
3. Understanding of Principle of superposition, relationship between stress intensity factor and energy release rate
4. Understanding of Effect of plastic deformation, small scale yielding and Fracture toughness test
5. Understanding of Fracture resistance curve, brittleness at low temperature, dynamic fracture and stress corrosion cracking
6. Understanding of Fatigue failure, stress corrosion cracking and creep fracture
This subject corresponds to acquisition of the learning objectives as follows
6. Advanced specialized academic ability in mechanical engineering
7. Ability to utilize specialized knowledge to solve new problems and make creative proposals.
Keywords
Failure accident, Crack, Energy release rate, Stress intensity factor, Fracture toughness, R-curve, Fatigue, Non-Destructive Inspection, Fracture control design
Competencies that will be developed
| ✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | ✔ Practical and/or problem-solving skills |
| ✔ 6. Advanced specialized academic ability in mechanical engineering 7. Ability to utilize specialized knowledge to solve new problems and make creative proposals. | ||||
Class flow
Students will understand of basic properties of material strength, as well as the fundamentals of fracture mechanics.Homework or mini-examinations will be assigned in some classes for students to deepen their understanding. Please carefully read the learning goals for each class, and prepare and review diligently.
Course schedule/Required learning
| Course schedule | Required learning | |
|---|---|---|
| Class 1 | Introduction of material strength and failure rule | Understand the strength of materials. |
| Class 2 | Energy release rate and stress intensity factor | Understand the mechanical evaluation of a crack. |
| Class 3 | Principle of superposition, relationship between stress intensity factor and energy release rate | Understanding of Principle of superposition, relationship between stress intensity factor and energy release rate. |
| Class 4 | Effect of plastic deformation, small scale yielding and Fracture toughness test | Understanding of Effect of plastic deformation, small scale yielding and Fracture toughness test . |
| Class 5 | Fracture resistance curve, brittleness at low temperature and dynamic fracture | Understanding of Fracture resistance curve, brittleness at low temperature and dynamic fracture. |
| Class 6 | Fatigue failure, stress corrosion cracking and creep fracture | Understanding of Fatigue failure stress corrosion cracking and creep fracture. |
| Class 7 | Exercise |
Out-of-Class Study Time (Preparation and Review)
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Textbook(s)
Distributing materials for each class
Reference books, course materials, etc.
Hideo Kobayashi, Fracture Mechanics (ISBN 978-4-320-08100-0), Kyoritsu Shuppan Co., Ltd.
Assessment criteria and methods
Graded with the results of several exercises
Related courses
- Mechanics of materials
- Elastoplastic mechanics
Prerequisites (i.e., required knowledge, skills, courses, etc.)
It is preferable that all the students have enough knowledge on mechanics of materials and elastoplastic mechanics.
