Abstract
In the present study, cyclic deformation behavior on the early stage of fatigue of an FCC single crystal was analyzed by using the finite element method based on the crystal plasticity theory. The hardening model proposed by Cuitino et al. based on interactions between primary and forest dislocations was combined with Peirce's rate-dependent plasticity theory in the present analysis. The cyclic stress-strain behavior was analyzed by using Asaro's double slip model, and the change of plasticity parameters with number of stress cycles was discussed.
