Thermomechanical state near rolling contact area

A numerical investigation of the temperature rise in the vicinity of a moving contact area is performed. A steady-state motion is assumed. A coupled thermomechanical algorithm is used. The coupling is realised: i) in the thermal equations by volumic heat sources (intrinsic dissipation (σ - cɛ^p): ɛ^p, reversible heat source pθs) and by interfacial dissipation; ii) in the mechanical equations, by thermal expansion. Numerical calculations are carried out to evaluate separately the parts of the temperature rise due to volumic and interfacial dissipations.