Modeling of Stationary Frictional Heating of a Coated Body

Resumo

A model of stationary friction heating of a coated body is proposed in this paper and a discrete contact for periodically located circular areas is considered. The elastic properties of materials are assumed to be temperature independent in the considered temperature range. The stress-strain state of the coating is considered to be known from the solution of the contact problem for a two-layer elastic base. Relations for calculating the temperature distribution in the surface layer and the base in the vicinity of a separate asperity taking into account the effect of neighboring asperities were obtained. As an example, we calculated the temperatures for a ceramic coating obtained by micro-arc oxidation and deposited on an aluminum alloy substrate. The results can be used to predict fracture upon frictional loading of coated bodies.