Author(s)

S. Glodez & J. Flasker

Abstract

A numerical model for simulation of short fatigue crack growth due to normal and tangential contact loading is presented in this work. The model can be used for predictions of the service life of various contacting mechanical elements (gears, bearings, wheels, cams, etc.) in respect to the surface pitting. The simulation of short crack growth takes into account the modified BCS (Bilby, Cottrell and Swinden) model for simulation of dislocations motion along slip bands in the material. The stress field in the contact area and relationship between the stress intensity factor and the crack length are determined by the finite element method, where the virtual crack extension method (VCE) is used for determination of the stress intensity factor. On the basis of numerical results and with co

Keywords