A dislocation-based model for low-amplitude fatigue behaviour of face-centred cubic single crystals

A dislocation-based model intended to predict mechanical behaviour for low-amplitude fatigue loading is presented. It is based on a physical representation of the dislocation microstructure according to a statistical distribution of dislocation dipoles acting as efficient obstacles to plastic slip. This leads to a reduced set of equations that accurately predict the development of hysteresis loops during cycling.