Electroelastic Fracture Mechanics Analysis of Piezoelectric Ceramic Strip

DOI
  • NARITA Fumio
    Department of Materials Processing, Graduate School of Engineering, Tohoku University
  • SHINDO Yasuhide
    Department of Materials Processing, Graduate School of Engineering, Tohoku University
  • LIN Sen
    Department of Materials Processing, Graduate School of Engineering, Tohoku University

Abstract

The effects of crack face boundary conditions of the piezoelectric fracture mechanics are discussed by analyzing the plane strain electroelastic problem of an orthotropic piezoelectric ceramic strip with a central permeable or impermeable crack. The problem of a long strip is formulated by means of integral transforms and reduced to the solution of a system of Fredholm integral equations of the second kind. Fracture mechanics parameters such as stress intensity factor, energy release rate and energy density factor based on both permeable model and impermeable model are compared. A finite element method is also used to calculate these fracture mechanics parameters, and the results are compared with the exact solutions. The numerical results illustrate that the impermeable assumption can lead to significant errors regarding the effects of the electric fields on crack propagation.

Journal

Details 詳細情報について

  • CRID
    1390001205211149696
  • NII Article ID
    130004463476
  • DOI
    10.11345/nctam.51.23
  • ISSN
    13494244
    13480693
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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