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Inclined Edge Crack in a Piezoelectric Material Under Antiplane Loads

압전재료에 대한 면외하중하의 모서리 경사 균열

  • 최성렬 (영남대학교 기계공학부) ;
  • 사종엽 (영남대학교 기계공학부) ;
  • 정재택 (전남대학교 기계공학부)
  • Received : 2015.02.02
  • Accepted : 2015.05.08
  • Published : 2015.06.01

Abstract

The occurrence of an inclined edge crack in transversely piezoelectric material is analyzed. Concentrated antiplane mechanical and inplane electrical loads are applied at the boundary and crack surface, respectively. The crack surfaces are assumed to be impermeable to the electric field. Using the Mellin transform with the introduction of a generalized displacement vector, the problem is formulated, and the Wiener-Hopf equation is derived. By solving the equation, the solution is obtained in a closed form. The intensity factors of the stress, the electric displacement, and the energy release rate are obtained for any crack length and inclination angle. These solutions can be used as fundamental solutions and can be superimposed to represent any arbitrary electromechanical loading.

Keywords

Piezoelectric;Antiplane;Intensity Factor

Acknowledgement

Supported by : 영남대학교

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