Love wave Propagation in Fiber-Reinforced Composites with Interfacial Spring-Membrane Effects

Abstract

A thorough theoretical analysis of the propagation characteristics of Love waves are presented in this study for a layered composite system comprising an FRC layer over an FRC substrate, separated by a combined thin spring layer and a thin elastic membrane interface. In contrast to elastic models that presume perfect bonding, the current work takes into account the mechanical discontinuities and interfacial flaws brought about by the membrane and classical spring, including localized mass effects and shear compliance. The dispersion behavior and amplitude attenuation of Love waves are considerably altered as a result of these interfacial imperfections, which also have a considerable impact on wave dynamics. Deeper understanding of how wave characteristics change in such intricate structures is made possible by this work, which models analytically the interaction between interfacial elasticity, inertia, and the anisotropic features of FRC materials. In the design and optimization of smart layered materials, non-destructive evaluation (NDE) of bonded interfaces, and sophisticated acoustic sensing technologies, where mechanical behavior and structural integrity at material junctions are crucial, the results may find use.