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2017　Deformation and Fracture of Engineering Materials

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Academic unit or major
Undergraduate major in Materials Science and Engineering
Instructor(s)
Yasuda Kouichi  Wakai Fumihiro  Yano Toyohiko 
Class Format
Lecture     
Media-enhanced courses
Day/Period(Room No.)
Mon7-8(S7-202)  Thr7-8(S7-202)  
Group
-
Course number
MAT.C309
Credits
2
Academic year
2017
Offered quarter
4Q
Syllabus updated
2017/9/11
Lecture notes updated
2017/12/4
Language used
Japanese
Access Index

Course description and aims

This course gives an introduction of fracture and deformation of engineering materials including metals, polymers, ceramics and their composites. It is necessary for the students to understand mechanical responses of materials in general and also to know a special phenomenon of each material relating to the mechanism. Different two viewpoints of generalization and analysis are very strong way to estimate the mechanical reliability of materials used in the real world, and also bring the students touch of learning in their lifes.

Student learning outcomes

By the end of this course, students will be able to
1) grasp general feature of mechanical response of materials including metals, polymers, ceramics, and their composites (overall)
2) understand dislocation in metals (K.Yasuda)
3) think from the standpoint of fracture mechanics and fracure statistics (K.Yasuda)
4) understand toughening mechanism of ceramic composites (T.Yano)
5) understand how to fabricate ceramic composites (T.Yano)
6) understand visco-elasticity in polymers (F.Wakai)
7) understand high temperature deformation of ceramics and sintering (F.Wakai)

Keywords

Elasto-plasticity, True stain, Dislocation, Overview in metals, Al2O3, ZrO2, Si3N4, SiC, Theoretical strength, Stress intensity factor, Fracture toughness, Weibull distribution(K.Yasuda), Classification and application of composite materials, Particulate composite, Nano particle-dispersed composite, Fiber-reinforced compsoite, Processing of composite materials(T.Yano), Visco-elasticity, Overview in polymers, High temperature deformation, Creep, Superplasticity, High temperature fracture, Mechanics of sintering(F.Wakai)

Competencies that will be developed

✔ Specialist skills Intercultural skills ✔ Communication skills ✔ Critical thinking skills ✔ Practical and/or problem-solving skills

Class flow

The students are required to download teaching materials in every class and read it before coming to class.
The instructor explains the essential points of each class and gives assignment to the students.
The students should solve the assignments during the class, and submit them to the instructor..
The instructor gives a brief answer of the assignment.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Stress/strain curve in metals, Elasto-plasiticity, True strain (K.Yasuda) Explain stress/strain curves in metals
Class 2 Dislocation in metals, Edge dislocation Screw dislocation, Burgers vector, Glide motion and plasticity (K.Yasuda) Explain dislocation theory in metals
Class 3 Processing of Engeneering ceramics, Al2O3, ZrO2, Si3N4, SiC, C/C composite (K.Yasuda) Explain overview in engineering ceramics
Class 4 Theoretical strength, Stress concentration at crack tip, Stress intensity factor, Fracture toughness (K.Yasuda) Explain fracture mechanics
Class 5 fracture statistics, pre-exisitig flaw, Weakest link model Weibull distribution, Weibull plot, Mostlikelihood method (K.Yasuda) Explain fracure statistics
Class 6 Classfication an application of composite materials (T.Yano) Explain classification of composite materials
Class 7 Ceramic composite, Particulte composite (T.Yano) Explain particulate composite
Class 8 Ceramic composite, Nano particle-dispersed composite (T.Yano) Explain nano particle-dispersed composite
Class 9 Ceramic composite, Fiber-reinforced composite (T.Yano) Explain fiber-reinforced composite
Class 10 Processing of ceramic composites (T.Yano) Explain processing of ceramics composites
Class 11 visco-elasticity, Constitutive equation of linear visvo-elatic materials, Stress relaxation, Complex elastic modulus, Complex copliance (F.Wakai) Explain visco-elasticity
Class 12 Overview in polymers, Relaxation mechanism in visco-elasticity, Non-Newtonian fluid (F.Wakai)　 Explain overview in polymers
Class 13 High temperature deformation, Difusional creep, Dislocation creep. Solution-preciitation creep, Deformation map (F.Wakai)　 Explain high temperature deformation
Class 14 High temperature fracture, Fracture map, Grain boundary creep fracture, creep crack extension and fracture, Superplasticity (F.Wakai)　 Explain high temperature fracture
Class 15 Continuum mechanics in sinteing, micro^scale, Sintering mechanics in multi-scale (F.Wakai)　 Explain sintering mechanics

Textbook(s)

Teaching materials are distributed in OCW-i or in class

Reference books, course materials, etc.

No reference

Assessment criteria and methods

Students will be assessed on their understanding of fracture and deformation of engineering materials, and their ability to apply them to estimate and discuss mechanical reliability.
Students’ course scores are based on reports in every class (100%)

Related courses

  • LAS.P101 ： Fundamentals of Mechanics 1
  • LAS.P102 ： Fundamentals of Mechanics 2
  • MAT.A202 ： Fundamentals of Mechanics of Materials F
  • MAT.C308 ： Continuum Mechanics

Prerequisites (i.e., required knowledge, skills, courses, etc.)

Taking the related classes is recommended, not mandatory.

Contact information (e-mail and phone)    Notice : Please replace from "[at]" to "@"(half-width character).

kyasuda [at]ceram.titech.ac.jp (1st - 5th class)
tyano[at]nr.titech.ac.jp (6th-10th class)
wakai.f.aa[at]m.titech.ac.jp (11th-15th class)

Office hours

Contact by e-mail in advance to schedule an appointment

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