Screw dislocation interacting with interfacial edge-cracks in piezoelectric bimaterial strips

Xiang Fa Wu, Yuris A. Dzenis, Bradley D. Rinschen

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

This paper is concerned with the interaction between an interfacial edge-crack and a screw dislocation under out-of-plane mechanical and in-plane electric loading in a piezoelectric bimaterial strip. 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 core. Under the framework of linear piezoelectricity, the out-of-plane displacement and in-plane electric potentials are constructed in closed-form by means of conformal mapping technique and the known solution for screw dislocation in cracked piezoelectric bimaterial. The intensity factors (IFs) and energy release rate (ERR) are derived explicitly.

Original languageEnglish (US)
Pages (from-to)341-346
Number of pages6
JournalInternational Journal of Nonlinear Sciences and Numerical Simulation
Volume5
Issue number4
DOIs
StatePublished - 2004

Keywords

  • Butt joint
  • Conformal mapping
  • Edge-crack
  • Energy release rate (ERRs)
  • Intensity factors (IFs)
  • Interfacial fracture
  • Piezoelectric bimaterials
  • Screw dislocation
  • Strips

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Computational Mechanics
  • Modeling and Simulation
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Applied Mathematics

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