Rayleigh Wave Propagation in Micropolar Layered Media with Perfect and Slip Interfaces

Abstract

This study investigates the dispersion of Rayleigh waves propagating in fiber-reinforced medium over a compressible porous semi-infinite medium under the influence of micropolar elasticity. Perfect and slip boundary conditions are applied on the interface of stratum and substrate to yield the dispersion relation. The model incorporates one of the most effective scheme, the Finite Difference Scheme (FDS) to compute the phase velocities and group velocities of Rayleigh waves. Stability condition of FDS has been derived for the phase velocity and group velocity. The effects of porosity, reinforcement, and micropolarity on Rayleigh waves propagation are studied graphically. A higher mode of the dispersion curve is also analyzed with respect to welded (perfect) and slip boundary conditions. © The Author(s), under exclusive licence to Springer Nature B.V. 2025.