Moving particle finite element method with global smoothness

Su Hao, Wing Kam Liu*, Ted Belytschko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We describe a new version of the moving particle finite element method (MPFEM) that provides solutions within a C0 finite element framework. The finite elements determine the weighting for the moving partition of unity. A concept of 'General Shape Function' is proposed which extends regular finite element shape functions to a larger domain. These are combined with Shepard functions to obtain a smooth approximation. The Moving Particle Finite Element Method combines desirable features of finite element and meshfree methods. The proposed approach, in fact, can be interpreted as a 'moving partition of unity finite element method' or 'moving kernel finite element method'. This method possesses the robustness and efficiency of the C0 finite element method while providing at least C1 continuity.

Original languageEnglish (US)
Pages (from-to)1007-1020
Number of pages14
JournalInternational Journal for Numerical Methods in Engineering
Volume59
Issue number7
DOIs
StatePublished - Feb 21 2004

Keywords

  • Finite element
  • Meshfree
  • Moving particle finite element
  • Partition of unity
  • Reproducing condition

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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