Transonic crack growth along a bimaterial interface: An investigation of the asymptotic structure of near-tip fields

Y. Huang*, C. Liu, A. J. Rosakis

*Corresponding author for this work

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Transonic interfacial crack growth in bimaterial systems is analysed, and the asymptotic field around the moving crack tip is obtained by the straightforward approach of analytic continuation. The power of singularity is less than 1/2 for anti-plane shear deformation. For in-plane deformation, the power of singularity can be real or complex, depending on the speed of the crack tip. Across the Rayleigh wave speed, the real part of the power has a jump of -1/2, and the imaginary part approaches infinity. The stresses are singular, not only around the crack tip, but also on an entire ray moving with the crack tip. These observations are illustrated by examples using PMMA/steel and Al/Al2O3 bimaterial systems.

Original languageEnglish (US)
Pages (from-to)2625-2645
Number of pages21
JournalInternational Journal of Solids and Structures
Volume33
Issue number18
DOIs
StatePublished - Jul 1996

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ASJC Scopus subject areas

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

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