Material design applying numerical material testing and decoupling multiscale topology optimization

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630209
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tohoku University
• Principal Investigator: Kato Junji 東北大学, 工学研究科, 准教授 (00594087)
• Project Period (FY): 2014-04-01 – 2017-03-31
• 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

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.

Free Research Field

計算力学