Abstract
This work shows the analysis of dislocation dynamics analyses of copper single crystal. A copper single crystal with uniaxial tensile loading axis along [1 1 1] crystallographic axis is considered. Each dislocation dynamics simulation cell is populated with Frank-Read sources randomly distributed on octahedral slip-systems. The strain-hardening behavior of a single crystal is controlled by interaction between dislocations which may result into formation of junctions. The interactions occurring between the dislocations, formation of junctions, occurrence of cross-slip and dislocation density evolution were analyzed. The contribution of individual reactions on the evolution of stress was then analyzed and strain-hardening coefficient representing each reaction was determined.
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