2016 Fiscal Year Final Research Report
Atomistically informed deformation theory of materials at finite temperature
| Project/Area Number |
23246025
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
君塚 肇 大阪大学, 基礎工学研究科, 准教授 (60467511)
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| Project Period (FY) |
2011-04-01 – 2016-03-31
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| Keywords | 塑性変形 / クリープ / 原子論 / ナノ材料 / 温度依存性 / ひずみ速度依存性 / サイズ依存性 |
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| Outline of Final Research Achievements |
We developed accelerated molecular dynamics method for analyzing materials plastic deformation processes at finite temperature. Using the newly developed method, we studied size, temperature, stress and strain rate effects on the activation behavior of plastic deformation processes. Based on the obtained properties of the the plastic deformation process, we constructed an unified theory between creep and ordinary plastic deformation theories, which is more general theory of materials deformation including size, temperature, stress and strain rate effects. We applied the theory to deformation study of nanocrystallne materials and proposed a design guide.
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| Free Research Field |
計算力学、計算材料科学
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