| Academic Year |
2026Year |
School/Graduate School |
Graduate School of Advanced Science and Engineering (Master's Course) Division of Advanced Science and Engineering Mechanical Engineering Program |
| Lecture Code |
WSH20401 |
Subject Classification |
Specialized Education |
| Subject Name |
材料強度学特論 |
Subject Name
（Katakana） |
ザイリョウキョウドガクトクロン |
Subject Name in
English |
Applied Fracture Mechanics |
| Instructor |
AKEBONO HIROYUKI,OGAWA YUKI |
Instructor
(Katakana) |
アケボノ ヒロユキ,オガワ ユウキ |
| Campus |
Higashi-Hiroshima |
Semester/Term |
1st-Year, Second Semester, 3Term |
| Days, Periods, and Classrooms |
(3T) Thur1-4：ENG 108 |
| Lesson Style |
Lecture |
Lesson Style
(More Details) |
Face-to-face, Online (simultaneous interactive) |
| |
| Credits |
2.0 |
Class Hours/Week |
4 |
Language of Instruction |
B
:
Japanese／English |
| Course Level |
6
:
Graduate Advanced
|
| Course Area（Area） |
25
:
Science and Technology |
| Course Area（Discipline） |
09
:
Mechanical Engineering |
| Eligible Students |
Graduate Student |
| Keywords |
Fracture mechanics, Fatigue fracture, Fatigue crack propagation, Surface treatment, Non-destructive testing |
| Special Subject for Teacher Education |
|
Special Subject |
|
Class Status
within Educational
Program
(Applicable only to targeted subjects for undergraduate students) | |
|---|
Criterion referenced
Evaluation
(Applicable only to targeted subjects for undergraduate students) | |
|---|
Class Objectives
/Class Outline |
Objectives
Ability to identify various damage mechanisms using fractography
Understanding fatigue phenomena and various influencing factors
Ability to perform fatigue-resistant design to ensure the long-term reliability of machines and structures
Understanding the classification, principles, and characteristics of surface treatment methods
Outline
Materials strength is the study of methods to prevent the failure of machines and structures. Based on the fundamental knowledge of materials mechanics and mechanical materials learned so far, this lecture will discuss the fatigue strength of mechanical materials that make up various structures and explain fatigue-resistant design approaches, which are important in manufacturing. We will also explain various surface treatments that are frequently used to achieve superior strength properties and their effects, as well as non-destructive testing, which is becoming increasingly popular as a method for damage detection. |
| Class Schedule |
Lecture 1: Fracture Case Studies
Lecture 2: Laws of Fracture, Tensile Strength, and Hardness
Lecture 3: Stress Intensity Factor K
Lecture 4: Fracture Toughness
Lecture 5: Basic Knowledge of Fatigue Fracture
Lecture 6: Factors Affecting Fatigue 1
Lecture 7: Factors Affecting Fatigue 2
Lecture 8: Fatigue Limit Diagrams
Lecture 9: Surface Treatment Using Heat
Lecture 10: Surface Treatment Using Liquid Phase
Lecture 11: Surface Treatment Using Gas Phase
Lecture 12: Damage and Strength Evaluation of Surface-Treated Materials
Lecture 13: Nondestructive Testing 1
Lecture 14: Nondestructive Testing 2
Lecture 15: Nondestructive Testing 3 |
Text/Reference
Books,etc. |
Printed synopsis of a lecture are prepared. |
PC or AV used in
Class,etc. |
Text, Handouts, Visual Materials, Microsoft Teams, Microsoft Stream, moodle |
| (More Details) |
Online, or face-to-face style depending on the situation
Textbook, Handouts, Powerpoint |
| Learning techniques to be incorporated |
|
Suggestions on
Preparation and
Review |
Aggressively question |
| Requirements |
|
| Grading Method |
Evaluated by both reports(80%) and learning attitude(20%) |
| Practical Experience |
|
| Summary of Practical Experience and Class Contents based on it |
|
| Message |
|
| Other |
|
Please fill in the class improvement questionnaire which is carried out on all classes.
Instructors will reflect on your feedback and utilize the information for improving their teaching. |