Analysis of dislocation microstructures: impact of force truncation and slip systems

We present a systematic investigation of the microstructures resulting from simulations of overdamped dislocation dynamics and quantitatively assess t he impact of Various slip system constraints and force truncation schemes. We show that the degree of local ordering in these structures correlates wi th the number of active slip planes. We compare the microstructures resulti ng from a common force cut-off scheme with those generated by applying full periodic boundary conditions and find that the dislocation structure is qu ite sensitive to the choice of boundary conditions.