Modeling and simulation of the static and vibratory behavior of hybrid composite plate off-axis anisotropic

Abstract

This study presents the static and vibratory behavior of a hybrid sandwich plate with a magnetorheological elastomer core. In order to improve the static and vibrational behavior of the plate, the pseudo-fibers formed by the effect of the magnetic field on the elastomer charged by the ferromagnetic particles are oriented at 45° with respect to the direction of the magnetic field at 0°. Ritz's approach is taken to solve the physical problem. In order to verify and compare the results obtained by the Ritz approach, an analysis using the finite element method was carried out. The effect of the magnetic field on bending displacements, normal stresses, shear stresses, and static strain modes of the off-axis anisotropic hybrid sandwich plate are discussed. The rheological property of the MRE material at 0° and at 45° are determined experimentally, and are exploited in the two numerical approaches. The natural frequencies and the modal damping of the sandwich plate are calculated and discussed for various magnetic field intensities. The results obtained by the two methods are compared. These off-axis anisotropic MRE structures could open up new opportunities in various fields of aeronautics, aerospace, mechanical engineering and civil engineering.