Fig. 1: Simulation setup and coupled motion.
From: Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
a Schematic view of the setup with two repulsively oriented screw dislocations I and II with Burgers vectors b1 and b2 respectively. The indicated directions r1 and r2 are parallel to the Peach–Kohler force due to the external loading resolved in the respective primary glide planes. Only repulsive pairs, where the glide directions r1 and r2 have a positive scalar product have to be considered. The location A and B marked on the dislocation line are the nearest points between the two dislocations defining the nearest distance d. b The variation of the velocity of dislocations I and II with Burgers vectors [111] and \([11\bar 1]\) is plotted versus the minimal distance of approach.
