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Calculation of Intensity Factors Using Weight Function Theory for a Transversely Isotropic Piezoelectric Material

횡등방성 압전재료에서의 가중함수이론을 이용한 확대계수 계산

  • Son, In-Ho (Dept. of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • An, Deuk-Man (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • 손인호 (부산대학교 기계공학부) ;
  • 안득만 (부산대학교 기계공학부)
  • Received : 2011.02.24
  • Accepted : 2011.12.14
  • Published : 2012.02.01

Abstract

In fracture mechanics, the weight function can be used for calculating stress intensity factors. In this paper, a two-dimensional electroelastic analysis is performed on a transversely isotropic piezoelectric material with an open crack. A plane strain formulation of the piezoelectric problem is solved within the Leknitskii formalism. Weight function theory is extended to piezoelectric materials. The stress intensity factors and electric displacement intensity factor are calculated by the weight function theory.

Keywords

Piezoelectric Material;Weight Function Theory;Stress Intensity Factor;Electric Displacement Intensity Factor

Acknowledgement

Supported by : 부산대학교

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