Email this article and Applied Mechanics
56, 4, pp. 993-1004, Warsaw 2018
DOI: 10.15632/jtam-pl.56.4.993
Microstructural considerations on SH-wave propagation in a piezoelectric layered structure
of their high-sensitivity. The theoretical study of horizontally polarized shear (SH)
waves in a layered structure consisting of a piezoelectric ceramic of PZT − 5H or BaT iO3
material overlying a couple stress substrate is presented in this paper. The considered substrate
is supposed to be exhibiting microstructural properties. The closed form expression of
dispersion relations are derived analytically for electrically open and short conditions. The
effects of internal microstructures of the couple stress substrate, thickness of PZT − 5H
or BaT iO3 ceramic, piezoelectric and dielectric constants are illustrated graphically on the
phase velocity of the piezoelectric layer under electrically open and short conditions.
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