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A screw dislocation interacting with an interfacial crack in two dissimilar piezoelectric media

  • Ai Kah Soh
  • , Jin Xi Liu*
  • , Dai Ning Fang
  • *Corresponding author for this work
  • The University of Hong Kong
  • Shijiazhuang Tiedao University
  • Tsinghua University

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper the interaction of a screw dislocation with a semi-infinite interfacial crack of two dissimilar piezoelectric materials is considered. The expressions for the electroelastic fields, intensity factors, and image force acting on a screw dislocation are given in explicit form in terms of complex functions. When one of two materials is purely elastic, the influence of electromechanical coupling on the stress intensity factor and the image force is analyzed in detail. In addition, the results obtained in the present paper can be reduced to several special cases that have been reported previously in the literature.

Original languageEnglish
Pages (from-to)273-282
Number of pages10
JournalPhysica Status Solidi (B): Basic Research
Volume232
Issue number2
DOIs
Publication statusPublished - 1 Aug 2002
Externally publishedYes

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