Elasto-plastic finite element analysis of fretting stresses in pre-stressed strip in contact with cylindrical pad

An elasto-plastic analysis of fretting stresses in a pre-stressed strip in contact with a cylindrical pad is studied using a finite element solver, AB AQUS, The pad and the strip are made from a titanium alloy. A bilinear elas to-plastic iso tropic hardening model with a von Mises yield surface is emp loyed to characterize the material behavior of the titanium alloy. This mod el is first verified through comparison with an analytical elastic solution . Various parameters, such as friction coefficient, the normal force applie d on the top of the pad, tangential force applied to the left side of the p ad, and bulk tension applied on the right edge of the strip, are adopted to study the influences of these parameters on fretting stresses to understan d the implication and importance of elasto-plastic analysis in fretting fat igue experiments. (C) 2000 Elsevier Science B.V. All rights reserved.