Development of a novel phase-field method for local stress-based shape and topology optimization

Seung Hyun Jeong, Gil Ho Yoon*, Akihiro Takezawa, Dong Hoon Choi

*この研究の対応する著者

研究成果: Article査読

32 被引用数 (Scopus)

抄録

This research develops a stress-based topology optimization method (STOM) using the phase-field method representing topological changes. This research shows that to apply the phase field method, regional and localized stress constraints should be addressed. Thus, we use an Augmented Lagrange multiplier approach for the stress constraints and present a new numerical solution for the Lagrange multipliers inside the Allen-Cahn equation with the topological derivatives. Through several two dimensional illustrative problems, the results of the phase-field method have larger objective values, but are robust from a stress point of view compared with the results of the STOM by the density method.

本文言語English
ページ(範囲)84-98
ページ数15
ジャーナルComputers and Structures
132
DOI
出版ステータスPublished - 2014 2月
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • モデリングとシミュレーション
  • 材料科学(全般)
  • 機械工学
  • コンピュータ サイエンスの応用

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