Finite element analysis of textured surfaces under reciprocating sliding

Texturing of functional surfaces for engineering applications has steadily gained attraction in the last years as a technique for reducing friction. However, there is little knowledge of the contact behaviour of such surfaces. This paper analyses the loading behaviour of textured surfaces using the finite element method. The influence of texture on friction during reciprocating sliding is studied for different groove morphologies and loading conditions. Plastic deformation after 20 sliding cycles is evaluated in order to estimate the risk of failure of textured surfaces. The results are compared with simulations using untextured surfaces and are validated with available experimental data from the literature.

► We model a textured surface using the finite element method. ► During dry sliding contact over a groove, the tangential force changes. ► The changes appear even for grooves much smaller than the contact area. ► During sliding, stress concentrations at the border of the grooves appear. ► These stress concentrations can yield to fatigue damage.