Feature based object decomposition for finite element meshing

Anshuman Razdan, Mark Henderson, Patrick F. Chavez, Paul A. Erickson

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Performing a finite element analysis requires overlaying an object with a mesh of varying density based on the expected stress levels within the part. Attempts have been made in the past to automat the finite element meshing procedure. The method presented here is "intelligent" in the sense that it examines the complete part for potential stress gradients and decomposes the part into hexahedral regions according to the geometry gradients in the part. High geometry gradients are regions of high curvature, especially edges. The algorithm segregates high gradient features into isolation volumes. It then continues to decompose each isolation volume dependent on the particular geometry contained in the feature. The result is a set of hexahedral bricks suitable for passing to an automatic meshing routine.

Original languageEnglish (US)
Pages (from-to)291-303
Number of pages13
JournalThe Visual Computer
Volume5
Issue number5
DOIs
StatePublished - Sep 1 1989

Keywords

  • Decomposition
  • Finite element
  • Geometric modeling
  • Solid modeling

ASJC Scopus subject areas

  • Software
  • Computer Vision and Pattern Recognition
  • Computer Graphics and Computer-Aided Design

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