The effect of core modelling on the self-force and self-energy of a dislocation
Authors:
U. Stigh
Affiliation:
Division of Solid Mechanics, Chalmers University of Technology, S-412 96, Goteborg, Sweden
Abstract:
A verification example is solved using a core model recently introduced in a FEM approach to dislocation dynamics. The core model is compared to the more accepted cut-off procedures. It is demonstrated that these procedures give the correct self-force if the cut-off distance is selected properly. The cut-off procedures do however have some grave weaknesses. These limit their usefulness to a restricted number of problems.