Finite element analysis of three dimensional crack growth by the use of a boundary element sub model

Tore Lucht

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A new automated method to model non-planar three dimensional crack growth is proposed which combines the advantages of both the boundary element method and the finite element method. The proposed method links the two methods by a submodelling strategy in which the solution of a global finite element model containing an approximation of the crack is interpolated to a much smaller boundary element model containing a fine discretization of the real crack. The method is validated through several numerical comparisons and by comparison to crack growth measured in a test specimen for an engineering structure.
Original languageEnglish
JournalEngineering Fracture Mechanics
Volume76
Issue number14
Pages (from-to)2148-2162
ISSN0013-7944
DOIs
Publication statusPublished - 2009

Keywords

  • Sub model
  • 3D crack growth
  • FEM
  • Remesh
  • BEM

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