Studies of Rheology and Deformation Mechanism of Amorphous materials
| Project/Area Number |
15607012
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
計算科学
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| Research Institution | Kyoto University |
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Principal Investigator |
ONUKI Akira Kyoto University, Dep. Of Physics, Professor, 大学院・理学研究科, 教授 (90112284)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Ryoichi Kyoto University, Dep. Of Chemical Engineering, Associate Professor, 大学院・工学研究科, 助教授 (10263401)
KITAMURA Hikaru Kyoto University, Dep. Of Physics, Research Associate, 大学院・理学研究科, 助手 (60335297)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2005: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | glass / plastic deformation / lattice imperfection / structural relaxation / poly crystal / 高分子動力学 / 絡み合い / ガラス転移 / せん断変形 / アモルファス / レオロジー / 変形 / 理論 / シミュレーション / プラスチック / 転移 / せん断 |
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| Research Abstract |
We have constructed a nonlinear elasticity theory in which the elastic energy is a periodic function of the strains. We can then describe plastic deformations of solids with a high dislocation density. We regard glasses as solids containing high density defects and claim that diffusion of the free volume relaxation in disordered environment gives rise to slow glassy relaxations. We have numerically demonstrated this mechanism by constructing a Ginzburg-Landau theory. We have also applied shear deformations to solids in two phase states to find dislocation formation and rheology in two phase states.
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Report
(4 results)
Research Products
(20 results)
