principal value of stress tensor

例句：

1. 1.The stress tensor is a fundamental concept in the study of elasticity.
   应力张量是研究弹性学的基本概念。
2. 2.In this model, the principal value of the stress tensor plays a crucial role in determining the material's response.
   在这个模型中，应力张量的主要值在决定材料响应方面起着至关重要的作用。
3. 3.The calculation of the principal value of the stress tensor is essential for predicting the behavior of materials under various loading conditions.
   计算应力张量的主要值对于预测材料在不同加载条件下的行为至关重要。