The thermodynamic dislocation theory developed for non-uniform plastic deformations is used here for the analysis of twisted copper wires. With a small set of physical parameters that we expect to be independent of strain rate and temperature, we can simulate the torque-twist curves that match the experimental ones of Liu et al. (2012). It is shown that the size effect results from the accumulation and pile-up of excess dislocations.

中文翻译：

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热力学位错理论：扭转中的尺寸效应

此处使用针对非均匀塑性变形开发的热力学位错理论来分析绞合铜线。通过我们期望与应变率和温度无关的一小组物理参数，我们可以模拟与 Liu 等人的实验曲线相匹配的扭矩-扭曲曲线。(2012)。结果表明，尺寸效应是由多余位错的积累和堆积引起的。