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2016　Advanced Course of Deformation and Fracture of Engineering Materials

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Academic unit or major
Graduate major in Materials Science and Engineering
Instructor(s)
Yasuda Kouichi  Tatami Junichi  Tanaka Satoshi 
Class Format
Lecture     
Media-enhanced courses
Day/Period(Room No.)
Mon7-8(S7-201)  Thr7-8(S7-201)  
Group
-
Course number
MAT.C501
Credits
2
Academic year
2016
Offered quarter
3Q
Syllabus updated
2016/12/14
Lecture notes updated
2016/9/20
Language used
Japanese
Access Index

Course description and aims

This course gives an overview 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 brings 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
2) understand the strengthening and toughening mechanisms of the materials
3) think from the standpoint of fracture mechanics
4) analyze the strength distribution data to estimate strength reliability

Keywords

Elasticity, Metals Dislocation, Strengthening mechanisms of metals, Polymers, visco-elasticity, Stress relaxation, Creep, Internal friction, Ceramics, Composites, Fracture mechanics, Stress intensity factor, Energy release rate, Fracture toughness, Process zone, Toughening mechanisms of ceramics, Fracture statistics, Weibull distribution, Thermal stress, Thermal shock fracture

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 learning materials in every class and read it before coming to class.
The instructor explains important points in each class.
The instructor poses questions for debate.
Students designated by the instructor will express their ideas to the question.
The instructor will summarize the discussion.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Elasticity, Elastic stiffness tensor, Energy elasticity, Entropy elasticity Explain elastic stiffness tensor.
Class 2 Dislocation theory in metals, Edge dislocation, Screw dislocation, Mixed dislocation, Glide motion, Climb motion, Fracnk-Reed source Explain structure and motion of dislocations.
Class 3 Grain boundary of metals, Tilt boundary, Twist Boundary, Coincidence site lattice, Overview on metals Explain grain boundaries in metals
Class 4 Strengthening mechanisms of metals, Work hardening, Solid solution strengthening, Precipitation strengthening, Dispersion strengthening, Fiber reinforcement, Composite materials Explain strengthening mechanisms of metals
Class 5 Visco-elasticity, Maxwell model, Voigt model, Stress relaxation, Creep. Integral law Explain visco-elasticity in polymers
Class 6 Anelasticity, Internal friction Overview on polymers Explain anelasticity and internal friction
Class 7 Overview on ceramics, Al2O3, ZrO2, Si3N4, SiC, C/C composites Explain typical ceramics
Class 8 Al2O3, Powder compaction process Explain alumina ceramics and powder compaction process
Class 9 Si3N4, Sintering process Explain silicon nitride ceramics and sintering process
Class 10 Fracture mechanics, Stress intensity factor, Critical stress intensity factor, Strength and flaw size, Process zone Explain fracture based on stress intensity factor
Class 11 Fracture mechanics, Energy release rate, Critical energy release rate, Relation between KIC and GIC Explain fracture based on energy release rate
Class 12 Toughening mechanisms in ceramics, Elastic inhomogeneity, Thermal expansion inhomogeneity, Crack bowing, Crack deflection Explain the basic toughening mechanisms in ceramics
Class 13 Toughening mechanisms in ceramics, Stress-induced phase transformation toughening, Microsrack Toughening, Elastic bridging, Fiber pullout Explain the special toughening mechanisms in ceramics
Class 14 Fracture statistics, Weibull distribution, Weakest flaw, Weakest link theory, Weibull plot, Most likelihood method Explain fracture statistics
Class 15 Thermal stress, Thermal shock fracture, Stationary thermal stress, Non-stationary thermal stress, Un-coupled quasi-static theory, Thermal shock fracture theory Explain thermal stress and thermal shock

Textbook(s)

Teaching materials are distributed in OCW-i

Reference books, course materials, etc.

Hertzberg, Deformation and Fracture Mechanics of Engineering Materials, 4th ed. Wiley

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 several reports (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

Office hours

Contact by e-mail in advance to schedule an appointment

Other

The classes are served for students to use their brains and polish their intelligence.

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