Love wave on a flexoelectric piezoelectric-viscoelastic stratified structure with dielectrically conducting imperfect interface

Abstract

The present work investigates the propagation of Love wave in a flexoelectric piezoelectric-viscoelastic stratum imperfectly bonded to a piezoelectric-viscoelastic substrate. To study the impact of imperfect interfaces, the non-traditional boundary conditions for two different types of imperfect interfaces have been taken into account. The frequency relation has been obtained in complex form employing a suitable variable separable technique. The dispersion and damping equations of Love wave have been analytically determined in the closed form by separating the real and imaginary part of the frequency relation for two distinct interfaces, i.e., mechanically compliant and dielectrically weakly/highly conducting interfaces in both electrically open and electrically short cases. Numerical calculations are carried out to reveal the impact of the width of stratum, imperfectness parameter, flexoelectric parameters, and flexoelectric loss moduli on the phase velocity and attenuation coefficient of Love wave and are also depicted through graphs for both the interfaces. For validation purposes, the expressions derived as a result of the present study are matched with the standard Love wave equation.