位错密度梯度结构Cu单晶微柱压缩的三维离散位错动力学模拟
熊健1,魏德安1,陆宋江1,阚前华1,康国政1,张旭1,2(
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A Three-Dimensional Discrete Dislocation Dynamics Simulation on Micropillar Compression of Single Crystal Copper with Dislocation Density Gradient
XIONG Jian1,WEI Dean1,LU Songjiang1,KAN Qianhua1,KANG Guozheng1,ZHANG Xu1,2()
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图7. 位错密度梯度结构模型沿X轴加载时，位错密度不同的各层塑性应变及位错密度随应变的变化
Fig.7. The evolutions of plastic strain (a) and the dislocation density (b) in bottom, middle and top layer, which have different dislocation densities, when loading direction is along X-axis which is perpendicular to the dislocation density gradient direction
