A crack in a piezoelectric layer bonded to a dissimilar elastic layer under transient load |
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Authors: | B L Wang N Noda |
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Institution: | (1) Department of Mechanical Engineering, Shizuoka University, Johoku 3-5-1, Hamamatsu, 432-8561, Japan E-mail: tbwong@ipc.shizuoka.ac.jp, JP |
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Abstract: | Summary A piezoelectric layer bonded to the surface of an elastic structure is considered. The piezoelectric and the elastic layers
are infinite along the x-axis and have finite thickness in the y-direction. The polarization direction of the piezoelectric material is along the y-axis. By means of the method of singular integral equations, the solution in a Laplace transform plane is demonstrated. Laplace
inversion yields the results in the time domain. Numerical values of the crack tip fields under in-plane transient electromechanical
loading are obtained. The influence of layers thickness on stress and electric displacement intensity factors is investigated.
Received 16 March 2000; accepted for publication 16 August 2000 |
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Keywords: | Piezoelectric Material Smart Material Fracture Mechanics Crack |
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