uniaxial strain test

On the basis of the uniaxial compressive test and routine triaxial test results of Q_2 and Q_3 loess, the features of strain-stress curves of Q_2 and Q_3 loess are compared.

通过对Q2和Q3黄土的单轴压缩和常规三轴试验研究，对两种黄土单轴压缩曲线和CU剪切的应力应变曲线特征进行分析比较，探讨了两种黄土应力应变本构模型。

On the basis of uniaxial tension test data, the Lagrange polynomial interpolation is adopted to construct the stress and strain fields of unannealed and annealed TRBs, which can solve the problem of TRB material parameters for simulation.

以单向拉伸试验数据为基础，采用拉格朗日多项式插值法构造了未退火和已退火差厚板的应力应变场，解决了数值仿真过程中差厚板的材料参数问题。