viscous strain

The distributions of temperature, stress, strain, strain rate, displacement and viscous damping coefficient within ductile shear zone at different time intervals are distinguished in the cases of accelerating creep age and strain softening.

并对加速蠕变和应变软化两种情况，给出了不同时刻韧性剪切带内的温度、应力、应变、应变率、位移和粘滞系数的分布特征，描述了岩石递进变形的规律。

With this method, the matrix form of the3D viscous strain increment for the standard linear solid model is obtained; and the corresponding tensor form is derived, which can be also generalized tot.

首先，根据该代换下的标准线性固体三维黏性应变增量的矩阵形式，导出与之相对应的张量形式，进而推广得到常泊松比下一般黏弹性体三维微分型本构关系。