Abstract
The Fourier analysis and the singular integral equation technique were used to investigate the propagation characteristics of elastic wave through frictional contact interface between 2 generally anisotropic piezoelectric materials. The method and procedure were developed to solve the question in the case of slipping but not separating in local interface areas, and the extents and locations of slipping and sticking regions varying with the external mechanical-electrical loads were given. Furthermore, with a polarized ceramic material and quartz, which belong to the hexagonal crystal system and the trigonal crystal system respectively, as the examples, different responses of the friction contact interface between different materials to incident elastic wave were analyzed, and the interface behaviors influenced by different incident angles and external mechanical-electrical loads were studied. High-frequency harmonics will occur because of non-linearity (boundary non-linearity) brought by separation or slip in local interface areas if the incident wave is strong enough. Finally, with quartz as an example, the amplitudes of the reflected and refracted high-frequency harmonics varying with mechanical-electrical loads were comparatively discussed.
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