Intersonic crack propagation in homogeneous media under shear-dominated loading: Theoretical analysis

Dhirendra V. Kubair, Philippe H. Geubelle*, Yonggang Y. Huang

*Corresponding author for this work

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

The mechanics of cohesive failure under mixed-mode loading is investigated for the case of a steadily propagating subsonic and intersonic dynamic crack subjected to a follower tensile and shear distributed load. The cohesive failure model chosen in this study is rate independent but accounts for the coupling between normal and tangential damage. Special emphasis is placed here on mixed-mode cases with predominantly shear loading. The analysis shows that the size of the mixed-mode cohesive zone is smaller than that obtained in the pure shear case. The relative extent of the shear and tensile cohesive damage zones depends on the crack speed and the mode mixity. In the intersonic regime, the failure process takes place exclusively in shear, even under remote mixed-mode loading conditions.

Original languageEnglish (US)
Pages (from-to)1547-1564
Number of pages18
JournalJournal of the Mechanics and Physics of Solids
Volume50
Issue number8
DOIs
StatePublished - Aug 1 2002

Keywords

  • A. Dynamic fracture
  • B. Elastic material
  • C. Boundary integral equations

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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