Electroelastic Wave Scattering at a Finite Crack in a Piezoelectric Ceramic

Yasuhide Shindo, Eiki Ozawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Piezoelectric effects are extensively utilized in electric ceramic devices as well as high-power ultrasonic devices. The piezoelectric components work under elastic strain and electric fields. For the reliable service lifetime predictions of the components, an electro-fracture mechanics approach has to be considered. Piezoelectric analysis of crack problems is an important, basic subject to establish the electro-fracture mechanics in future. Following the dynamic theory of linear piezoelectricity, we consider the scattering of normally incident longitudinal waves by a finite crack in an infinite orthotropic piezoelectric solid. The problem is formulated by means of integral transforms, and reduced to the solution of a Fredholm integral equation of the second kind. Numerical calculations are carried out and dynamic stress and electric field intensity factors are obtained for piezoelectric ceramics.

Original languageEnglish
Pages (from-to)480-484
Number of pages5
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume57
Issue number535
DOIs
Publication statusPublished - 1991 Jan 1

Keywords

  • Elasticity
  • Electric Field Intensity Factor
  • Electro-Fracture Mechanics
  • Electroelastic Wave
  • Finite Crack
  • Integral Transform
  • Piezoelectric Ceramics
  • Stress Intensity Factor

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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