Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 49, Issue 4, Pages 595-608Publisher
SPRINGER
DOI: 10.1007/s00158-013-0994-6
Keywords
Topology optimization; Decoupling multi-scale analysis; Micro-structures; Homogenization
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Funding
- MEXT KAKENHI [23560561, 23656285]
- Grants-in-Aid for Scientific Research [23656285, 23560561] Funding Source: KAKEN
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The present study proposes topology optimization of a micro-structure for composites considering the macroscopic structural response, applying a decoupling multiscale analysis based on a homogenization approach. In this study, it is assumed that topology of macro-structure is unchanged and that topology of micro-structure is unique over the macro-structure. The stiffness of the macrostructure is maximized with a prescribed material volume of constituents under linear elastic regime. A gradient-based optimization strategy is applied and an analytical sensitivity approach based on numerical material tests is introduced. It was verified from a series of numerical examples that the proposed method has great potential for advanced material design.
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