Skip to content

Peach-Koehler forces within the theory of nonlocal elasticity

Markus Lazar

cond-mat.mtrl-sciarXiv:cond-mat/0501732

Abstract

We consider dislocations in the framework of Eringen's nonlocal elasticity. The fundamental field equations of nonlocal elasticity are presented. Using these equations, the nonlocal force stresses of a straight screw and a straight edge dislocation are given. By the help of these nonlocal stresses, we are able to calculate the interaction forces between dislocations (Peach-Koehler forces). All classical singularities of the Peach-Koehler forces are eliminated. The extremum values of the forces are found near the dislocation line.

Create a lesson