Journal of Theoretical
and Applied Mechanics
42, 1, pp. 69-82, Warsaw 2004
A non-local fatigue crack growth model and its experimental verification
The present paper is concerned with the modelling of fatigue crack initiation and propagation by applying the non-local critical plane model, proposed by Seweryn and Mróz (1996, 1998). Using the linear elastic stress field at the front of a crack or sharp notch, the damage growth on a physical plane is specified in terms of mean values of the stress and strength function. The model is applied to study crack propagation under cyclically varying tension-compression conditions. The predictions are compared with experimental data.
Keywords: fatigue; damage accumulation; crack propagation