Probabilistic simulation of wear in loaded rolling contact

National audienceThe study presented in this paper deals with the wear phenomena which occurs during loaded rolling contact in industrial machinery. The local deformation of the local contact zone associated to the existence of tangential load generates micro slips and superficial wear. This damage leads to machinery diseases, for example in cam-roller system the kinetic of the machine may not be as smooth as initially needed. As a complement of the previous presentation in [1] authors show simulation of the wear profile which is due to successive passages of the roller on the cam path. This simulation is managed taking into account the dispersion of not well known parameters by a stochastic approach. These methods may be applied to other mechanical applications such as roller bearing analysis, for example. In this paper, we restrict our study to the quasi-stationary of a roller on a cylindrical specimen case where normal load, geometry and speed are constant during simulation. The study takes into account experimental dispersions via the construction of probabilistic density function associated with uncertain parameters such as the relative position of solids or contact characteristics such as the coefficient of friction mu