Analysis of transverse shear wave in pre-stressed piezoelectric fiber-reinforced composite cylindrical models with non-ideal interface: a comparative study

Abstract

In the present literature, two types of piezoelectric fiber-reinforced composite (PFRC) based cylindrical models are considered to investigate the circumferential shear wave propagation on a cylinder. Model I consists of a pre-stressed PFRC layer imperfectly bonded to a pre-stressed piezoelectric cylinder of infinite length. Model II comprises a pre-stressed PFRC layer that is imperfectly bonded to a fiber-reinforced core cylinder. The dispersion equations have been derived for both models, assuming electrically open and short boundaries. The numerical simulations are carried out, and results are portrayed graphically to show the effects of various parameters. The radius ratio, pre-stress, mechanical imperfect bonding parameter, fiber reinforcement and fiber-matrix volume ratio exert considerable effects on the PFRC cylinder. Comparative analysis of the dispersion behavior reveals that the shear wave’s phase velocity varies differently for Model I and Model II, and the phase velocity for Model I is higher compared to Model II. The phase velocity reaches its minimum when the piezoelectric fiber is 0.5–0.6 by volume fraction in the PFRC layer.