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.
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)
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)
|✔ Specialist skills||Intercultural skills||✔ Communication skills||✔ Critical thinking skills||✔ Practical and/or problem-solving skills|
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|
|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|
Teaching materials are distributed in OCW-i or in class
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%)
Taking the related classes is recommended, not mandatory.
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)
Contact by e-mail in advance to schedule an appointment