An easy implementation of displacement calculations in 3D discrete dislocation dynamics codes
An easy implementation of displacement calculations in 3D discrete dislocation dynamics codes
复制标题
在 3D 离散位错动力学代码中轻松实现位移计算
DOI：
10.1080/14786435.2014.949326
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发表时间：
2014
影响因子：
1.6
通讯作者：
C. Déprés
中科院分区：
文献类型：
--
作者：
M. Fivel;C. Déprés
以三维离散位错动力学代码实现的观点重新审视了各向同性介质中三角环位移场的Barnett无坐标表达式。提出了求解非平面环的一般网格划分方法。该方法在不定义闭环连通性的情况下给出了每个位错段对全局位移场的贡献，方便用户使用，可用于数值模拟。该方法易于实现并行计算，已成功应用于大规模仿真。
Barnett’s coordinate-free expression of the displacement field of a triangular loop in an isotropic media is revisited in a view to be implemented in 3D discrete dislocation dynamics codes. A general meshing procedure solving the problems of non-planar loops is presented. The method is user-friendly and can be used in numerical simulations since it gives the contribution of each dislocation segment to the global displacement field without defining the connectivity of closed loops. Easy to implement in parallel calculations, this method is successfully applied to large-scale simulations.