Strain gradient theory

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；

The strain gradient enhanced damage model based on strain gradient theory and continuum damage mechanics is established and applied to forecasting the localized damage in rock material.

本文提出基于应变梯度的损伤模型，并用于材料局部化损伤模拟预测中。

The second shear strain gradient and the function reflecting the effect of strain rate are introduced into the yield function of classical elastoplastic theory.

在经典弹-塑性理论的屈服函数中引入应变梯度及考虑应变率效应的函数。