Multi-scale topology optimization considering elastoplastic composite material

DOI Open Access

Bibliographic Information

Other Title
  • 複合材料の弾塑性挙動を考慮したマルチスケールトポロジー最適化

Abstract

<p>The present study proposes topology optimization of microstructure considering elastoplastic deformation based on a decoupling multi-scale analysis. Energy absorption capacity of macrostructure is maximized under a prescribed material volume of microstructure. It is assumed that microstructure consists of a two-phase material based on elastoplastic von Mises model and that macrostructure is modeled with anisotropic Hill’s elastoplasticity. In this study, we extend the analytical sensitivity method used for mono-scale analysis to the decoupling multi-scale analysis and propose a framework of new multi-scale topology optimization, which can reduce the computational costs with keeping sensitivities highly accurate. It is verified by a series of numerical examples that the proposed method provides reliable optimization results and has a great potential for advanced material design.</p>

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Details

  • CRID
    1390564238048417408
  • NII Article ID
    130007520834
  • DOI
    10.11421/jsces.2018.20180015
  • ISSN
    13478826
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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