On the interaction between a semi-infinite anti-crack and a screw dislocation in piezoelectric solid

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1505-1513
Journal / PublicationInternational Journal of Solids and Structures
Volume39
Issue number6
Publication statusPublished - 12 Mar 2002
Externally publishedYes

Abstract

Electro-elastic stress investigation on the interaction between a semi-infinite anti-crack and a screw dislocation under anti-plane mechanical and in-plane electrical loading is carried out. The screw dislocation is subjected to a line-charge and a line-force at the core. Explicit closed-form analytical solutions for the stress fields are derived by means of complex variable and conformal mapping methods. The stress and electric intensity factors at the anti-crack tip are found to be classic 1/√r singularity. The force on the dislocation is also calculated and discussed for two typical PZT materials. © 2002 Elsevier Science Ltd. All rights reserved.

Research Area(s)

  • Anti-crack, Dislocation, Interaction, Piezoelectric material