Quantifying viscoelastic, piezoelectric and couple stress effects on Love-type wave propagation

Abstract

The propagation of Love-type wave in multilayered structures plays a vital role for designing of Love wave-based devices. In this present paper, we have considered a theoretical model consisting of a heterogeneous viscoelastic layer lying under a finite layer of piezoelectric medium and lying over size-dependent couple stress substrate. The traction free surface is considered on the top layer of the considered geometry of the problem. The closed form of secular equations are derived for electrically open and short circuits. The impacts of heterogeneity, internal friction related to viscoelastic layer, together with the internal microstructures of couple stress substrate are demonstrated graphically. The effect of piezoelectric medium is displayed by taking or BaTiO3 materials of the piezoelectric layer. The validation has been carried out for the study, which is in close agreement with the already established results.