Abstract
Electrodes that are stiff and thick compared with the underlying piezoelectric substrate material can substantially change the effective piezoelectric and elastic constants from those values which would be obtained in the absence of electrodes. A simple analytical model for the stress distribution inside a composite piezoelectric plate, consisting of two outer electrode layers and one inner piezoelectric layer, is used to calculate the effective g31, g32, and g33 piezoelectric constants, as well as the effective sij (i, j = 1,2,3) elastic compliance coefficients. Numerical results for copper‐clad poly (vinylidene) fluoride (PVDF) plates are presented. [Work supported by the Office of Naval Technology and by Raytheon Submarine Signal Division, Acoustic Transduction Research and Development Project (DR).]
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