Frictional Adhesive Contact of Multiferroic Coatings Based on the Hybrid Element Method

This paper investigates the frictional adhesive contact of a rigid, electrically/magnetically conductive spherical indenter sliding past a multiferroic coating deposed onto a rigid substrate, based on the hybrid element method. The adhesion behavior is described based on the Maugis-Dugdale model. The adhesion-driven conjugate gradient method is employed to calculate the distribution of unknown pressures, while the discrete convolution-fast Fourier transform is utilized to compute the deformations, surface electric and magnetic potentials as well as the subsurface stresses, electric displacements, and magnetic inductions. The goal of this study is to investigate the influences of adhesion parameter, friction coefficient, coating thickness, and surface electric and magnetic charge densities on contact behaviors, such as contact area and pressures, electric and magnetic potentials, and subsurface stresses.