A continuum model for discrete dislocation dynamics

Abstract eng:
This work reports on a 2-d edge dislocation model within the framework of a PDE-based continuum dislocation mechanics theory (Field Dislocation Mechanics) [1] . We numerically explore such physical phenomena as Peierls stress, dislocation pile-ups, dislocation annihilation & dissociations, supersonic dislocations (even in 2-d); Within the same framework,‘self-healing’, an important tectonic phenomena that cannot be predicted by the mostly used crack-based dynamic rupture models, is also modelled.

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