An evolution equation was derived, for a curved glide dislocation, by using the concept of line tension and a parametric description of the dislocation line. A numerical method was used to solve the equation under general conditions. Beginning with an initial configuration, the temporal evolution of the gliding dislocation was computed for 2 simple cases (expanding circular dislocation loop, pinned dislocation). An inherent loss of the relationship between the initial and current dislocation configurations corresponded to reality, in that real dislocations eventually lost their link to any initial configuration. The present equations and numerical methods could be used to model dislocation glide in non-homogeneous and non-stationary stress and obstacle fields.

Viscous Glide of a Curved Dislocation R.Sedlácek: Philosophical Magazine Letters, 1997, 76[4], 275-80