Length scale control for high-resolution three-dimensional level set–based topology optimization

Niels Aage, Reinier Giele, Casper Schousboe Andreasen

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This work considers an efficient approach for length scale control in high-resolution three-dimensional level set–based topology optimization. A contrast parameter–based cut element method is employed to ensure a crisp interface representation while working on fixed background hexahedral meshes. This enables the use of efficient multigrid preconditioned Krylov methods in massively parallelized computations. The minimum length scale is controlled using a projection filter without the need for β-continuation. The capabilities of the proposed approach is demonstrated on several numerical examples using more than 62 million hexahedral elements.

Original languageEnglish
Number of pages13
JournalStructural and Multidisciplinary Optimization
DOIs
Publication statusPublished - 2021

Keywords

  • Cut elements
  • Large-scale
  • Length scale control
  • Level set method
  • Topology optimization

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