A crossing sensitivity filter for structural topology optimization with chamfering, rounding, and checkerboard-free patterns

San Bao Hu, Li Ping Chen, Yun Qing Zhang, Jingzhou Yang, Shu Ting Wang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Chamfering and rounding are the most common features of structures and mechanisms. Introducing these features is another way to make material usage more efficient by lowering or avoiding stress con centrations and making the structure even stronger. In this brief note, a new crossing sensitivity filter is proposed for structural topology optimization with chamfering and rounding. This method also ensures the final optimal solution without checkerboard patterns or mesh-dependency. It can also partially prevent one-node hinges. Numerical examples that include both design of stiffest/strongest structures and synthesis of compliant mechanisms are provided.

Original languageEnglish
Pages (from-to)529-540
Number of pages12
JournalStructural and Multidisciplinary Optimization
Volume37
Issue number5
DOIs
StatePublished - Feb 2009

Keywords

  • Chamfering and rounding
  • Checkerboards
  • Crossing sensitivity filter
  • Mesh dependency
  • Topology optimization

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