The first seven lectures deal with the concepts of stress, strain and elastic constitutive equations in three-dimensional
elasticity. Then the mechanics and the design method of composite are provided based on the mechanics of materials.
The second seven lectures deal with the elasto-plastic behavior and failure criteria in complex stress condition and fatigue stress condition.
Each lecture consists of teaching section and exercise section. The achievement of objectives is evaluated by exams.
The second seven lectures deal with the elasto-plastic behavior and failure criteria in complex stress condition and fatigue stress condition.
Each lecture consists of teaching section and exercise section. The achievement of objectives is evaluated by exams.
The purpose of this class is understanding the mechanical behavior of elastoplastic or composite materials in order to design
machine and structures using these materials.
- Understanding the concept of mechanics of materials and the method to apply it advanced problems.
- Understanding the mechanical behavior of composite materials.
- Understanding the mechanical behavior of elastoplastic materials.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | Fundamental of elastic theory 1 - Stress and strain in elastic theory - Coordinate transformation - Constitutive equation |
Review of the class. | 190minutes |
| 2. | Composite material 1 - Unidirectional reinforced materials - Constitutive equation for transverse isotropic materials |
Review of the class. | 190minutes |
| 3. | Composite material 2 - Fiber orientation angle |
Review of the class. | 190minutes |
| 4. | Composite material 3 - Lamination theory - Isotropic lamination |
Review of the class. | 190minutes |
| 5. | Composite material 4 - Yield condition - Fracture |
Review of the class. | 190minutes |
| 6. | Composite material 5 - Short fiber reinforced material - Exercises on from 1st to 6th lecture |
Review of the class. | 190minutes |
| 7. | Midterm exam and review - Exam on composites - Review for the exam |
Review of the class. | 190minutes |
| 8. | Strength evaluation 1 - Brittle materials and ductile materials - Elastic failure - Bending stress in a beam |
Review of the class. | 190minutes |
| 9. | Strength evaluation 2 - Mohr’s stress circle - Principal stress and principal shear stress - Fundamental design of shaft - Failure of materials |
Review of the class. | 190minutes |
| 10. | Design of shaft - Design of shaft under bending and twisting, - Moment of inertia of area and polar moment of inertia of area (Section modulus and polar section modulus) |
Review of the class. | 190minutes |
| 11. | Concept of weight saving - Weight saving method - Weight saving of swing arm, - Weight saving of a shaft considering bending and twisting |
Review of the class. | 190minutes |
| 12. | Concept of shape optimization - Beam and shaft of uniform strength - Optimum design supported by computer (Constitutive law of growth and genetic algorithm) |
Review of the class. | 190minutes |
| 13. | Fatigue design - Fatigue limit and fatigue strength - Design based on fatigue strength |
Review of the class. | 190minutes |
| 14. | Final exam and review - Exam on elasto-plastic materials - Review for the exam |
Review of the class. | 190minutes |
| Total. | - | - | 2660minutes |
| Midterm exam | Final exam | Total. | |
|---|---|---|---|
| 1. | 15% | 15% | 30% |
| 2. | 35% | 35% | |
| 3. | 35% | 35% | |
| Total. | 50% | 50% | - |
Final grade is determined by two exams, midterm exam 50% and final exam 50%.
At least 60 points out of 100 is needed to pass.
At least 60 points out of 100 is needed to pass.
References, for example, "Theory of Elasticity" S P Timoshenko
K. Watanabe, “Zairyo rikigaku”, Baifukan Co., Ltd., Y.Hatamura, “Jissai no sekkei”, Nikkan Kogyo Shimbun Ltd. and Y. Hagiuwara, “Yokuwakaru Kikougaku”, Ohmsha Ltd.
K. Watanabe, “Zairyo rikigaku”, Baifukan Co., Ltd., Y.Hatamura, “Jissai no sekkei”, Nikkan Kogyo Shimbun Ltd. and Y. Hagiuwara, “Yokuwakaru Kikougaku”, Ohmsha Ltd.
- Course that cultivates a basic problem-solving skills
| Work experience | Work experience and relevance to the course content if applicable |
|---|---|
| Applicable | Based on the experience of estimate and detail design, I introduce the practical problems on the design calculation as necessary. |
- 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
- 12.RESPONSIBLE CONSUMPTION & PRODUCTION
Last modified : Fri Mar 18 22:31:37 JST 2022