Life Prediction of a Mono Contact Aluminum/Steel at Constant and Variable Amplitudes Loading in Fretting Fatigue Configuration

The fretting fatigue behavior of Al–Mg–Si alloy (6082-T6) was investigated using a configuration of a cylindrical pad of Z160CDV12. Experimental tests were performed under constant amplitude loading and variable loading Finite Element Analyses using ABAQUS commercial code were also performed to calculate stress distribution in the contact zone. Two multiaxial fatigue parameters, Smith-Watson-Topper “SWT”, and Crack Energy Density “ΔCED” were coupled with the linear law developed by Palmgren-Miner and the nonlinear Damage Stress Model (DSM). The estimates obtained with the modified (DSM) model are in good agreement with the experiments and seem very promising to predict fatigue life under conditions of fretting fatigue.