In order to design of mechanical elements and structures, the calculation of strength is necessary to ensure the safety usage
without fracture. The calculation of deformation is also needed to ensure the mechanical operation without interfering among
deformed mechanical parts. Since these strength and deformation calculations are based on "Mechanics of material", Mechanics
of materials" is necessary for the design of machine elements and structures. In this lecture, basic concepts of material
mechanics such as stress, strain, Hooke's law, mechanical properties of materials, and safety design will be explained. This
lecture also explains the analysis methods for mechanical analyses for bars subjected to tension and compression, truss structures,
and beams subjected to bending.
Designing machines and structures are need to ensure safety use based on analyses of stress/deformation of the objects. Mechanics
of materials has a important role for design by rule, and it is necessary technical knowledge for mechanical engineers.
The purpose of this class is understanding a part of the concept of design by rule, the stress/deformation analysis of simple bar members and beams.
The purpose of this class is understanding a part of the concept of design by rule, the stress/deformation analysis of simple bar members and beams.
- Understanding the basic concepts of mechanics of materials such as stress, strain and Hooke's law.
- Understanding the stress and deformation analysis for structural bars subjected to axial loads.
- Understanding the bending stress and deflection analysis for beams subjected to bending moments.
| Midterm exam | Final exam | Report | Total. | |
|---|---|---|---|---|
| 1. | 15% | 5% | 20% | |
| 2. | 20% | 15% | 7% | 42% |
| 3. | 30% | 8% | 38% | |
| Total. | 35% | 50% | 15% | - |
Final grade is determined by two exams, midterm exam 35%, final exam 50%, and repot 15%.
At least 60 points out of 100 is needed to pass.
At least 60 points out of 100 is needed to pass.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | Introduction - Purpose of mechanics of materials - Fundamental knowledge - Coordinates, free body diagram, equilibrium of force/moment |
Review of the class and exercise. | 190minutes |
| 2. | Stress - Internal force and external force - Definition of stress |
Review of the class and exercise. | 190minutes |
| 3. | Strain, Hooke's law - Definition of strain - Mechanical property of materials - Stress-strain curve - Allowable stress and safety factor |
Review of the class and exercise. | 190minutes |
| 4. | Stress/deformation of simple bar members - Statically determinate problem for simple bar members - Stress of shear deformed objects |
Review of the class and exercise. | 190minutes |
| 5. | Exercise - Exercise and review on from 1st to 4th class |
Review of the class and exercise. | 190minutes |
| 6. | Midterm exam and review - Exam on from 1st to 5thh class - Review for the exam |
Review of the class and exercise. | 190minutes |
| 7. | Bending beams 1: bending moment by concentrated load - Equilibrium of force in bending beams - Shearing force diagram - Bending moment diagram |
Review of the class and exercise. | 190minutes |
| 8. | Bending beams 2: bending moment by distributed load - Equilibrium of force in bending beams - Shearing force diagram - Bending moment diagram |
Review of the class and exercise. | 190minutes |
| 9. | Bending beams 3 - Bending stress |
Review of the class and exercise. | 190minutes |
| 10. | Bending beams 4 - Characteristics of cross-section of bending beams - Moment of inertia of cross-section |
Review of the class and exercise. | 190minutes |
| 11. | Bending beams 5 - Deflection of bending beams |
Review of the class and exercise. | 190minutes |
| 12. | - Statically indeterminate problem - Indeterminate bar members - statically indeterminate beams |
Review of the class and exercise. | 190minutes |
| 13. | Exercise - Exercise and review on from 1st to 12th class |
Review of the class and exercise. | 190minutes |
| 14. | Final exam and review - Exam on from 1st to 14th class - Review for the exam |
Review of the class and exercise. | 190minutes |
| Total. | - | - | 2660minutes |
| ways of feedback | specific contents about "Other" |
|---|---|
| Feedback in the class |
Textbook is distributed.
Reference: "Zairyourikigaku", Imai, Hirano, Saimoto, Asakura publishing, (in Japanese).
"Point wo manabu zairyourikigaku",Nishimura publishing, (in Japanese).
Reference: "Zairyourikigaku", Imai, Hirano, Saimoto, Asakura publishing, (in Japanese).
"Point wo manabu zairyourikigaku",Nishimura publishing, (in Japanese).
- From 16:00 to 17:00 on Thursday, and before and after class in Omiya campus
- Course that cultivates a basic problem-solving skills
| Work experience | Work experience and relevance to the course content if applicable |
|---|---|
| N/A | N/A |
- 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
- 12.RESPONSIBLE CONSUMPTION & PRODUCTION
Last modified : Thu Mar 06 10:13:18 JST 2025