Rough surface model using potential function superpositions

Abstract

A fast method of contact mechanics for rough surfaces is presented. The roughness beneath each contact element of the discretized contact area is described by a single asperity, having the shape of the Abbott Firestone Curve and the modified carrying stiffness for rough contact is modelled with the help of bars. The model was verified by solving several example problems, showing high computing speed. The number of elements can be changed easily in contact area and the repetitiveness of the method for a rough surface is demonstrated.