The characteristic of a material returning to its original shape after removing the external force applied to solid materials
is called elasticity, and the characteristic of a material not returning to its original shape is called plastic behavior.
By utilizing the plastic behavioral characteristic of materials, they can be processed into various shapes and are being used
in wide-ranging applications. When materials undergo plastic deformation, various material properties change. In addition,
by utilizing plastic deformation and thermal processing in combination, shape control as well as material texture control
is possible.
The aim of this course is to introduce basic knowledge relating to the stress state within materials during plastic deformation,
basic theories to investigate strain states, and changes in material properties accompanying shape change.
- To understand stress and strain conditions of deformed materials
- To understand various changes on material properties with plastic deformation
- To understand basics of crystal plasticity
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1． | Lecture guidance, Synopsis of plastic deformation, Stress-Strain diagram on uniaxial tensile deformation, True stress and logarithmic strain | Confirmation of syllabus. | 20minutes |
| Review of material dynamics. | 170minutes | ||
| 2． | Mathematization of true stress and logarithmic strain diagram, Multiaxial stress condition, Mohr’s stress circle | Review of plastic dynamics | 190minutes |
| 3． | Equivalent stress and equivalent plastic strain, yield criterion (von Mises, Tresca) | Review of plastic dynamics | 190minutes |
| 4． | Equivalent plastic strain increment, Relation of stress and strain (Levy-Mises) | Review of plastic dynamics | 190minutes |
| 5． | Strain increment theory and total strain theory | Review of plastic dynamics | 190minutes |
| 6． | Elementary method analysis on upsetting and plane strain compression | Review of plastic dynamics | 190minutes |
| 7． | FEM analysis on plastic deformation | Review of FEM | 190minutes |
| 8． | Non-uniform and local deformation on cold working, crystal plasticity | Review of plastic crystalline plasticity mechanics | 190minutes |
| 9． | Dislocation theory, Formation of material properties with deformation, Mechanism of work hardening | Review of plastic crystalline plasticity mechanics | 190minutes |
| 10． | Measurement for the orientation of crystal by means of X-ray diffraction | Review of X-ray diffraction. | 190minutes |
| 11． | Texture measurement by means of X-ray diffraction | Review of X-ray diffraction. | 190minutes |
| 12． | Formation of material properties with deformation and heat treatment, recover and recrystallization | Review of heat treatment. | 190minutes |
| 13． | Control method for material structure on Thermo Mechanical Control Process (TMCP) | Review of heat treatment. | 190minutes |
| 14． | Control method for material structure on Severe Plastic Deformation (SPD) | Review of Severe Plastic Deformation (SPD) | 190minutes |
| Total. | - | - | 2660minutes |
| Report | Total. | |
|---|---|---|
| 1. | 33% | 33% |
| 2. | 33% | 33% |
| 3. | 34% | 34% |
| Total. | 100% | - |
It is preferable to take the undergraduate lecture "Technology of Plasticity", "Material science".
- Monday's lunch break, in the professor's room
- I respond to the questions by E-mail at anytime.
- Course that cultivates an ability for utilizing knowledge
| Work experience | Work experience and relevance to the course content if applicatable |
|---|---|
| N/A | N/A |
Last modified : Thu Mar 21 15:06:14 JST 2019