This article showed, on the base of recent results, that dislocation dynamics simulations provide a unique opportunity for establishing scale transitions in crystal plasticity. In the present study, transitions were performed between elementary dislocation mechanisms, collective and intermittent slip events at the mesoscale and the mechanical response of bulk materials with low lattice resistance. In face-centered cubic crystals, the insight that was obtained provides guidelines for the modelling of collective dislocation behavior. It also allows incorporating more physical input into phenomenological models for strain hardening and improving their predictive ability.

Scale Transitions in Crystal Plasticity by Dislocation Dynamics Simulations. B.Devincre, L.Kubin: Comptes Rendus - Physique, 2010, 11[3-4], 274-84