Partial Slipping of Flat Punch in Thermomechanical Contact with Elastic Half-Space.

The problem of frictional thermomechanical contact of a rigid cylindrical flat-based punch with an elastic half-space has been solved numerically. The partial slipping with friction between the coupled surfaces, as a result of a compressive load, at the first stage, and a uniform heating of the bodies, at the second stage, has been investigated. To take into account the friction, we have used Coulomb's law. This problem is reduced to systems of nonlinear boundary integral equations that correspond to the mechanical and the thermal stress stages. The discretization of integral equations and iterative process have been used to obtain a numerical solution of these systems. The dependences of the normal and tangential contact stress distributions and the configuration of the stick and slip zones on the temperature have been analyzed for two possible cases of the relationship between the coefficients of thermal expansion of the bodies. [ABSTRACT FROM AUTHOR]