Dislocation dynamics simulations of slip systems interactions and forest strengthening in ice single crystal
Dislocation dynamics simulations of slip systems interactions and forest strengthening in ice single crystal
复制标题
冰单晶中滑移系统相互作用和森林强化的位错动力学模拟
DOI：
10.1080/14786435.2012.699689
复制
发表时间：
2013
影响因子：
1.6
通讯作者：
B. Devincre
中科院分区：
文献类型：
--
作者：
B. Devincre
森林相互作用的冰单晶的流动应力和应变硬化的贡献进行了评估从位错动力学模拟。位错-位错相互作用的系统映射和滑移系之间相互作用强度的计算表明共线湮灭反应的重要贡献。与实验结果的比较表明，森林强化引起的一个小密度的共线位错段在交叉滑移面可能被低估了目前的冰塑性模型。
The contribution of forest interactions to flow stress and strain hardening in ice single crystals is evaluated from dislocation dynamics simulations. The systematic mapping of dislocation–dislocation interactions and the calculation of the interaction strength between slip systems suggest an important contribution of collinear annihilation reactions. Comparison with experiment shows that the forest strengthening induced by a small density of collinear dislocation segments in cross-slip planes may have been underestimated in current models for ice plasticity.