Wear of Multiphase Composites in the Friction Area: Mathematical Model

Abstract

The wear of multiphase composite materials is modeled as accumulation of microstructural defects for each component. To assess the probability of defects for components of a composite, a statistical boundary-value problem from the micromechanics of structurally inhomogeneous environments connecting deformation and microdestruction processes is solved. The accumulation of microstructural defects is described by random functions whose statistics for each component of a composite material are determined experimentally. To assess the accuracy of the proposed approach, the wear of 15 multiphase composite materials determined by calculation and experiment is compared. It is established that the content of fiber component, expandable graphite, and boron nitride influences the wear of composite materials.