Thermoelastic Instability in Coupled Thermoelastic Sliding Wear Problem

摘要

Thermoelastic instability is considered in the case of the rigid semi-infinite body sliding over the coating surface, exposing it to abrasive wear and frictional heating. The solution of the formulated quasi-static coupled thermoelas-ticity problem is represented in the form of integrals of the inverse Laplace transform, which are found to be dependent on four dimensionless parameters. Analysis of the integrand poles with respect to these parameters reveals four types of stability and instability regions. Expressions for temperature, contact stresses and wear of the coating are obtained in form of series over integrands poles. Numerical analysis of the solution is carried out with respect to the dimensionless and dimensional parameters of the problem. Particular attention is paid to the effect of the thermoelastic coupling parameter.