Bifurcation of a running crack in antiplane strain

J. D. Achenbach*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

An elastodynamic explanation of running crack bifurcation is explored. The geometry is a semi-infinite body in a state of antiplane strain, which contains a two-dimensional edge crack. It is assumed that a quasi-static increase of the external loads gives rise to rapid crack propagation at time t = 0, with an arbitrary and time-varying speed, but in the plane of the crack. A short time later the crack is assumed to bifurcate at angles -κπ and +gkπ, and with velocities v. The elastodynamic intensity factors are computed, and the balance of rates of energies is employed to discuss the conditions for bifurcation.

Original languageEnglish (US)
Pages (from-to)1301-1314
Number of pages14
JournalInternational Journal of Solids and Structures
Volume11
Issue number12
DOIs
StatePublished - Dec 1975

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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