Adaptive generation of hexahedral element meshes for finite element analysis of metal plastic forming process

Zhang Hongmei*, Zhao Guoqun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A method for the adaptive generation of hexahedral element mesh based on the geometric features of solid model is proposed. The first step is to construct the refinement information fields of source points and the corresponding ones of elements according to the surface curvature of the analyzed solid model. A thickness refinement criterion is then used to construct the thickness-based refinement information field of elements from digital topology. The second step is to generate a core mesh through removing all the undesired elements using even and odd parity rules. Then the core mesh is magnified in an inside-out manner method through a surface node projection process using the closest position approach. Finally, in order to match the mesh to the characteristic boundary of the solid model, a threading method is proposed and applied. The present method was applied in the mesh construction of different engineering problems. The resulting meshes are well-shaped and capture all the geometric features of the original solid models.

Original languageEnglish
Pages (from-to)772-776
Number of pages5
JournalComputational Materials Science
Volume46
Issue number3
DOIs
Publication statusPublished - Sept 2009

Keywords

  • Adaptive generation
  • Curvature and thickness
  • Geometric features
  • Hexahedral element mesh
  • Refinement

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