An efficient procedure for determining mixed-mode energy release rates in practical problems of delamination

Barry D. Davidson, Hurang Hu, Hongwei Yan

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

A computationally efficient procedure is presented for the prediction of mixed-mode strain energy release rates in practical problems of delamination. In this procedure, an analytical crack tip element analysis is used for the determination of all singular field quantities. By comparison with two- and three-dimensional finite element results, the procedure is shown to be accurate for mixed-mode problems where mode I, mode II and/or mode III crack tip singularities are present. The procedure is applicable for those cases where a near-tip inverse-square-root singularity exists, as well as those where an oscillatory singularity exists. For these latter cases, an alternative approach to using oscillatory field quantities to characterize crack advance is suggested.

Original languageEnglish (US)
Pages (from-to)193-210
Number of pages18
JournalFinite Elements in Analysis and Design
Volume23
Issue number2-4
DOIs
StatePublished - Nov 15 1996

ASJC Scopus subject areas

  • Analysis
  • Engineering(all)
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics

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