Rayleigh Wave Fields in a Multilayered Micropolar Media

Abstract

This paper investigates the motion of Rayleigh wave fields produced by a seismic surface pulse in an isotropic micropolar elastic half-space and in a multilayered micropolar media. The method of potentials followed by the Hankel transformation technique is used to determine explicitly the displacement vector components and microrotation vector components. Two different cases of surface seismic pulses are taken into account and the behavior of Rayleigh waves displacement components are studied separately. A matrix approach has been implemented to obtain solutions for the wave equations to reflect the motion of Rayleigh wave fields produced in multilayered micropolar elastic media due to surface seismic loadings. The displacement solutions for the half-space are obtained in the form of integral equations, which are further numerically evaluated and a few 2D and surface plots are plotted to describe the characteristics of the solutions. © 2024 American Society of Civil Engineers.