Loading and Friction of Elastoplastic Line Contact with Thermal Deformation

Abstract

The loading and friction of the elastoplastic line contact in boundary lubrication is studied by accounting for the
contact thermal deformation effect. When the contact is
mainly in the elastic deformation, the contact thermal
deformation has significant influences on both the contact width and contact friction coefficient for a given load, and it reduces their values; However when the contact is
mainly in the plastic deformation, the effect of the contact thermal deformation is weak or even negligible. Owing to the contact thermal deformation, the critical load for the initiation of the contact plastic deformation is also reduced.