The article describes a model of interaction dynamics between a dislocation and dipolar dislocation loops. The interaction was essential for dipolar dislocation structure formation in early stages of a hardening process. For the description of the dislocation curve a direct parametric approach was employed whereas the loops were treated as rigid objects. The model equations were solved approximately by means of the finite-volume method. Physically interesting phenomena could be captured by the model provided the simulation covers long time periods. The strong interaction between the dislocation and the loops causes growing non-uniformity of distribution of discrete nodes along the dislocation curve. This effect was balanced by two proposed types of tangential redistribution of the discrete nodes. The redistribution was tested in simulations of loop clustering.

Simulation of Dynamical Interaction between Dislocations and Dipolar Loops. V.Minárik, M.Beneš, J.Kratochvíl: Journal of Applied Physics, 2010, 107[6], 061802