Screw dislocation interacting with an interfacial edge crack between two bonded dissimilar piezoelectric wedges

Xiang Fa Wu, Yuris A. Dzenis, Wen Sheng Zou

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

This letter is concerned with an interfacial edge crack in a piezoelectric bimaterial wedge interacting with a screw dislocation under antiplane mechanical and in-plane electric loading. In addition to a discontinuous electric potential across the slip plane, the dislocation is subjected to a line-force and a line-charge at the tip. The out-of-plane displacement and electric potentials are obtained in closed-form based on conformal mapping technique and the solution for the screw dislocation in an infinite piezoelectric bimaterial with a semi-infinite interfacial crack. The intensity factors (IFs) and energy release rate (EER) are obtained explicitly. These solutions can be used as a base for constructing solutions for arbitrary coupled antiplane mechanical and in-plane electrical loadings.

Original languageEnglish (US)
Pages (from-to)L9-L14
JournalInternational Journal of Fracture
Volume117
Issue number3
StatePublished - Oct 2002

ASJC Scopus subject areas

  • Computational Mechanics
  • Modeling and Simulation
  • Mechanics of Materials

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