Mixed-mode fracture analyses of plastically-deforming adhesive joints

Q. D. Yang, M. D. Thouless

Research output: Contribution to journalArticle

254 Scopus citations

Abstract

A mode-dependent embedded-process-zone (EPZ) model has been developed and used to simulate the mixed-mode fracture of plastically deforming adhesive joints. Mode-I and mode-II fracture parameters obtained from previous work have been combined with a mixed-mode failure criterion to provide quantitative predictions of the deformation and fracture of mixed-mode geometries. These numerical calculations have been shown to provide excellent quantitative predictions for two geometries that undergo large-scale plastic deformation: asymmetric T-peel specimens and single lap-shear joints. Details of the deformed shapes, loads, displacements and crack propagation have all been captured reasonably well by the calculations.

Original languageEnglish (US)
Pages (from-to)175-187
Number of pages13
JournalInternational Journal of Fracture
Volume110
Issue number2
DOIs
StatePublished - Jul 1 2001

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Keywords

  • Adhesion
  • Fracture
  • Mechanical testing
  • Mode-mixedness
  • Numerical modeling
  • Plasticity

ASJC Scopus subject areas

  • Mechanics of Materials
  • Computational Mechanics

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