Simplified method to determine contact stress distribution and stress intensity factors in fretting fatigue

摘要

In this paper, first, a procedure to calculate the stress intensity factors, K_I and K_II of the oblique crack initiated under fretting fatigue conditions is described, and secondly, a technique for determining the distributions of contact pressure and friction stress at the contact interface between plate and fretting pad is proposed. Finally, the computer program, which can calculate K_i, and K_II for arbitrary geometrical and loading conditions, is developed. The program is also applicable to the study of fretting fatigue crack propagation mechanism.