| Project/Area Number |
26630209
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
Kato Junji 東北大学, 工学研究科, 准教授 (00594087)
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| Co-Investigator(Kenkyū-buntansha) |
京谷 孝史 東北大学, 工学研究科, 教授 (00186347)
寺田 賢二郎 東北大学, 災害科学国際研究所, 教授 (40282678)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | トポロジー最適化 / ミクロ構造 / マルチスケール解析 / 材料開発 / 材料非線形 / 幾何学的非線形 / 超弾性 / 弾塑性 / 応用力学 / 構造最適化 |
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| Outline of Final Research Achievements |
It is well known that the structural behavior strongly depends on the material microstructure. Recently, production technology enables to control/manufacture the microstructure to a degree and this kind of topics has been paid attention in world wide, especially in the research for advanced materials. However, most of them take empirical approaches strongly relying on the experiments. For the best of our knowledges, these approaches cannot lead to the truly optimal design.
The present study proposed topology optimization method to provide an optimal microstructure numerically for maximizing structural performance and eventually the usability and versatility of the proposed method was verified by the series of numerical examples. Specifically, we developed a method to optimize microstructure topology of hyperelastic composite material and also to optimize a metallic crystalline structure to maximize the macroscopic structural performance.
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