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Transient Response of a Permeable Crack Normal to a Piezoelectric-elastic Interface: Anti-plane Problem  

Kwon, Soon-Man (Department of Mechanical Design ＆ Manufacturing, Changwon National University)
Lee, Kang-Yong (School of Mechanical Engineering, Yonsei University)
Publication Information
Journal of Mechanical Science and Technology / v.18, no.9, 2004 , pp. 1500-1511 More about this Journal
Abstract
In this paper, the anti-plane transient response of a central crack normal to the interface between a piezoelectric ceramics and two same elastic materials is considered. The assumed crack surfaces are permeable. By virtue of integral transform methods, the electro elastic mixed boundary problems are formulated as two set of dual integral equations, which, in turn, are reduced to a Fredholm integral equation of the second kind in the Laplace transform domain. Time domain solutions are obtained by inverting Laplace domain solutions using a numerical scheme. Numerical values on the quasi-static stress intensity factor and the dynamic energy release rate are presented to show the dependences upon the geometry, material combination, electromechanical coupling coefficient and electric field.
Keywords
Anti-Plane Shear Impact; Piezoelectric-Elastic Composites; Permeable Crack; Intensity Factors; Electromechanical Coupling Coefficient;
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Times Cited By KSCI : 1  (Citation Analysis)
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