MODELING THE PLASTIC DEFORMATION STATE OF THE CONTACT SURFACE DURING FRICTION

The mechanics of contact destruction of compounds during friction under conditions of complex thermodynamic loading was researched. The possibility of a mathematical description of complex damage to friction units and wear intensity is shown, taking into account the peculiarities of the surface layer formation during contact. A method for calculating the surface strength and durability of tribo-compounds is presented. This allows us to relate the parameters of the stressed state of a point (friction coefficient, shape factor) with the thermomechanical parameters of the process. By assessing changes in the friction coefficient and shape parameters, it becomes possible to determine the yield stress and establish structural transformations corresponding to a given stress state.