The general couple stress theory is one of the strain gradient theories.
偶应力理论是应变梯度理论的一种。
参考来源 - 基于偶应力理论的局部彼得洛夫—伽辽金无网格（MLPG）法This paper systematically introduces some methods of micro-forming and a universal theory about strain gradient plasticity at present.
本文系统地介绍了微细塑性成形方法以及目前较常用的应变梯度塑性理论。
参考来源 - 微细塑性成形实验技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The design of strain gages in regions of high strain gradient is discussed.
本文讨论了大梯度应变区电阻应变片的设计问题。
Then, we introduce a strain gradient theory and its main applications, in which no high-order stresses are included.
其次主要介绍了不含高阶应力的一类应变梯度理论及其应用；
This paper deals with X-ray diffraction profile analysis for the sample with a micro-strain gradient in its surface layer.
本文讨论了样品表面层有微观应变梯度时X射线衍射线形分析的方法。
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