Course title
4M5540001
Advanced Strength of Materials

 utsunomiya takao Click to show questionnaire result at 2019

hashimura shinji
Course content
In critical design of mechanical structures, not only cost reduction but also weight reduction are demanded. In order to realize the critical design, we should use many kinds of materials such as composite materials for mechanical structures and have to secure safety and reliabilities.
The most important factor is safety in the mechanical design and we have to learn fracture mechanics and strength of materials. In the first half of this class, you learn basic theories of fracture mechanics and metal fatigue. The second half covers fracture phenomena of many kinds of materials and material strengths such as brittle / ductile materials including new materials, etc. In addition, the damage detection and evaluation technology used for safety maintenance is described.
Purpose of class
Students learn fracture mechanics and metal fatigue in this class in order to be able to design the critical mechanical parts and structures.
And students also learn basic knowledge on damage mechanisms, strength evaluation methods considering damage detection / evaluation techniques used for safety maintenance of materials / structures.
Goals and objectives
  1. To understand and explain phenomenon of material fracture
  2. To understand and explain stress intensity factor
  3. To understand phenomenon of Metal fatigue
  4. To understand and explain the strength evaluation methods for advanced materials and structures.
  5. To understandand explain the damage mechanisms for advanced materials and structures.
  6. To understand the damage detection technologies and apply those to the reliability evaluation of advanced materials and structures.
Language
Japanese
Class schedule

 Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1． Guidance and Outline Review of stress, strain, stress conversion and strength calculation. 100minutes
Preparation of stress concentration and stress intensity factor. 100minutes
2． Fracture mechanics and Stress Intensity Factors Review of stress intensity factor and small scale yielding. 100minutes
Investigation of metal fatigue and accident examples due to fatigue. 100minutes
3． Metal fatigue: Fatigue strength Review of metal fatigue. 100minutes
Preparation of Size Effect in metal fatigue . 100minutes
4． Metal fatigue: Size effect Review of Size Effect in metal fatigue . 100minutes
Preparation of Notch Effect in metal fatigue . 100minutes
5． Metal fatigue: Notch effect Review of Notch Effect in metal fatigue . 100minutes
Preparation of Manson-Coffin low. 100minutes
6． Metal fatigue: Low cycle fatigue Review of low cycle fatigue. 100minutes
Preparation of modified Miner's rule 100minutes
7． Metal fatigue: Fatigue under various loading Review of modified Miner's rule 100minutes
Investigation of causes of fatigue failure accidents. 100minutes
8． Guidance, Characteristics of aerospace structures, Fracture control Preparation of handout and review from class 1 to class 7. 120minutes
9． Brittle materials and ductile materials, Loading type and fracture mode Preparation of handoutand and review of this class. 90minutes
Preparation of report. 240minutes
10． Structure of composite materials, Strength tests of composite materials Preparation of handout and review of this class. 90minutes
11． 3-dimensional stress fields, Strain energy and equivalent stress Preparation of handout and review of this class. 90minutes
Preparation of report. 240minutes
12． Visualization of defects and strength design methods of casting materials, Strength design methods considering small defects Preparation of handout and review of this class. 90minutes
13． Fatigue fracture paranmeters and prediction of fatigue life Preparation of handout and review of this class. 90minutes
Preparation of report. 240minutes
14． Damege detection techniques of structure materials and smart structures Preparation of handout and review of this class. 100minutes
Total. - - 2790minutes
Relationship between 'Goals and Objectives' and 'Course Outcomes'

 quiz Reports during classes Total.
1. 15% 15%
2. 15% 15%
3. 20% 20%
4. 20% 20%
5. 15% 15%
6. 15% 15%
Total. 50% 50% -
Evaluation method and criteria
In the first part of the lecture, students are evaluated by three times quiz (50%).
In the second part of the lecture, students are evaluated based on reports during classes (50%).
Students can pass getting 60 points out of total 100 points. The details will be explained during the first class.
Textbooks and reference materials
Japanese textbook of "Strength of Materials", ISBN 978-4-901381-26-0
Handout.
References: H. Kobayashi, “Fracture mechanics”, Kyoritsu Shuppan Co., LTD. and Y. Murakami, “Metal fatigue: effects of small defects and nonmetallic inclusions”, Yokendo LTD.
Prerequisites
Basic knowledge of strength and fracture of materials.
Office hours and How to contact professors for questions
  • 14:50～15:50 of Tuesday, anytime when I’m in my room, except for the special situation.
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Course that cultivates an ability for utilizing knowledge
  • Course that cultivates a basic problem-solving skills
Active-learning course
More than one class is interactive
Course by professor with work experience
Work experience Work experience and relevance to the course content if applicatable
N/A N/A
Education related SDGs:the Sustainable Development Goals
  • 4.QUALITY EDUCATION
  • 9.INDUSTRY, INNOVATION AND INFRASTRUCTURE
  • 12.RESPONSIBLE CONSUMPTION & PRODUCTION
Last modified : Tue May 26 04:02:50 JST 2020