Finite element simulation of dry rolling-sliding wear of similar elastic cylinders

초록

This paper is concerned with the development of finite element based wear simulation tools that can simulate wear on the contact surface in a dry rolling-sliding contact of similar elastic cylinders. The amount of slip and contact pressure at rolling contact condition is analysed by applying three-dimensional non-linear finite element steady state analysis for rolling contact of similar elastic cylinders. For the wear prediction, the modified Archard’s equation is applied and adaptive mesh smoothing technique is used. Wear simulations are carried out for different applied load and different slip conditions. The predicted worn surface profiles of cylinder are compared with the experimental results obtained by twin-disc rolling sliding contact test and the simulation results are discussed. Results show that as the contact surface wears, the contact area increases and contact pressure decreases. As the contact surface wears out, the contact length of rolling direction of the elliptical contact area decreases and the contact length of width direction of the contact area increases. With the increase in wear of the cylinder, the elliptical contact slowly approaches towards a line contact. The predicted worn surface profiles showed a good agreement with the experimental data.