Abstract
The propagation of transverse waves in a piezoelectric layer of class (622) is investigated, when excited by either (a) step electric potential, keeping zero stress or (b) step shear stress, keeping zero potential. The resulting electric potential or shear stress is presented graphically. For case (a), electric potential linearly increases as the thickness of the plate increases, whereas stress is maximum near nondimensional thickness r=0.1 and decreases gradually and becomes zero at the top surface. For case (b), electric potential becomes negative and linearly decreases up to nondimensional thickness, r=0.87 and then increases and becomes zero at the top surface with slight oscillatory nature as the thickness of the plate increases. It is also observed that mere application of time dependent electric potential in piezoelectric (622) class generates transverse waves, which is not possible in any other piezoelectric material.
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