Experimental and numerical investigation of effect of size, position and geometry of some cutouts on fatigue life and crack growth path on AISI1045 steel plate

The main factor in determining path and rate in fatigue crack growth (FCG) problems is the stress field around the crack tip that is defined as stress intensity factor (SIF). Cutouts cause a stress concentration that depends on their size and geometry. This stress concentration can affect the stress field near the crack tip vicinity and deviates the FCG path. In this paper in order to study the effect of cutout parameters on FCG, first, a...