Edge Crack Behavior in a Three Layered Piezoelectric Composite Under Anti-Plane Impact Loads

면외 충격하중을 받는 3층 압전 복합재료내의 가장자리 균열거동

  • 권순만 (영남대학교 기계공학부) ;
  • 손명섭 (연세대학교 대학원 기계공학부) ;
  • 이강용 (연세대학교 기계공학과)
  • Published : 2002.10.01


In this paper, we examine the dynamic electromechanical behavior of an edge crack in a piezoelectric ceramic layer bonded between two elastic layers under the combined anti-plane mechanical shear and in-plane electric transient loadings. We adopted both the permeable and impermeable crack boundary conditions. Fourier transforms are used to reduce the problem to the solution of two pairs of dual integral equations, which are then expressed to a Fredholm integral equation of the second kind. Numerical values on the dynamic energy release rate are presented to show the dependences upon the geometry, material combination, electromechanical coupling coefficient and electric field.


Piezoelectric Material;Permeable Crack;Impermeable Crack;Anti-Plane Shear Impact;EMCC


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