Finite element model of erosive wear on ductile and brittle materials

摘要

Materials failure is usually caused by corrosion, wear and mechanical damage. According to previous research, erosion wear holds about 8% of the regular wear in industrial production. In this study, the mechanism of erosive wear on brittle and ductile materials is briefly introduced. The numerical methods of erosion have been summarized. A brand new universal finite element (FE) model of erosive wear was established. The Johnson-Cook and Johnson-Holmquist materials model and the corresponding equation of state used in the FE model were described in more details. Utilizing the FE model, two examples of ductile materials and brittle materials were employed to simulate the effect of the impact angle, impact velocity and particles penetration on the targets. It is shown that the predicted results are in agreement with published results obtained experimentally and from analytical erosion models. The present study could be useful and efficient in studying erosive wear.