| Project/Area Number |
24360044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
IZUMI Satoshi 東京大学, 工学(系)研究科(研究院), 教授 (30322069)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Shinsuke 東京大学, 大学院工学系研究科, 教授 (80134469)
TANAKA Hiro 東京大学, 大学院工学系研究科, 助教 (70550143)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Keywords | マルチスケール解析 / 摩擦 / 凝着 / 樹脂 / 機械材料・材料力学 / 有限要素法 / 分子動力学 / 摩擦係数 |
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| Outline of Final Research Achievements |
Friction between solids is known as a complicated phenomenon including multi-scale roughness (multi-asperity). In this study, the scale of roughness is decomposed to three region, macro-mezo-nano. Multi-scale simulator to integrate each scale modellings has been developed. For macro-scale undulation, explicit contact-friction finite element method is applied. For mezo-scale fractal roughness, the Persson model is newly modified. For nano-scale, molecular dynamics simulation is applied. Finally, we have tried to connect each scale effectively.
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