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권순만,최효승,이강용,Gwon, Sun-Man,Choe, Hyo-Seung,Lee, Gang-Yong 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.2
In this paper, we consider the dynamic electromechanical behavior of an eccentric Yoffe permeable crack in a piezoelectric ceramic strip sandwiched between two elastic orthotropic materials under the combined anti-plane mechanical shear and in-plane electrical loadings. 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. The initial crack propagation orientation for PZT-5H piezoceramics is predicted by maximum energy release rate criterion.
전기 절연 균열을 갖는 압전 세라믹 스트립의 세기 계수 결정
권종호,권순만,신정우,이강용,Gwon, Jong-Ho,Gwon, Sun-Man,Sin, Jeong-U,Lee, Gang-Yong 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.6
Using the theory of linear piezoelectricity, we consider the problem of piezoelectric ceramic infinite strip containing a finite crack with free surface traction and surface charge under anti-plane shear. The crack is symmetrically parallel to the edges of infinite strip. Fourier transforms are used to reduce the problem to two pairs of dual integral equations, which are then expressed in terms of Fredholm integral equations of the second kind. Numerical results for PZT-5H ceramic are obtained and discussed.