Journal of Theoretical
and Applied Mechanics

42, 1, pp. 69-82, Warsaw 2004

A non-local fatigue crack growth model and its experimental verification

Andrzej Seweryn, Adam Tomczyk, Zenon Mróz
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