| 1. | Principal axis of strain
主应变轴 |
| 2. | Major principal strain
最大主应变 |
| 3. | It points out that the principal strain rate is coaxial with the principal stress at critical state and is independent of the critical stress surface
指出散粒体临界状态下的主应变率与主应力共轴，而与临界应力面形状无关。 |
| 4. | It is very difficult to determine the directions of the principal stresses or strains in plane problem for teaching material mechanics and engineering application
摘要平面应力和平面应变状态下主应力和主应变方向的确定，无论是在工程应用还是在材料力学教学中都是非常重要的难点。 |
| 5. | A valid method to make the anisotropic deformation behavior of load bearing unit clear is to research principal stress and principal strain relationship , and true triaxial test is a necessary means
弄清受荷单元的主应力主应变关系是认识各向异性变形性状的有效方法，而真三轴试验是必要的手段。 |
| 6. | These three aspects of anisotropic index can be sufficiently embodied in the property of compliment matrix of anisotropic elasticity and compliment marix of principal stress and principal strain relation with general sense
这三方面的各向异性指标可以在各向异性增量弹性和更具一般意义的增量主应力主应变关系的柔度矩阵性质中得到充分体现。 |
| 7. | The research of soil anisotropic deformation characteristic in this paper is mainly to study the anisotropy of lateral deformation and the anisotropy of principal stress and principal strain relationship in different load direction
本文土体各向异性变形性状的研究主要为了研究侧向变形以及不同主应力加荷向的主应力主应变关系的不同变化规律。 |
| 8. | The results of fem are analyzed , and the action of the strain isoline , stress level isoline , energy isoline and safety factor isoline is applied . in addition , the destroy process of slope is simulated by element regulation and repeat calculation
对有限元的计算结果进行了分析，对运用最大剪应变等值线、大主应变等值线确定可能滑动面，运用应力水平分析单元的受力状态进行了研究。 |
| 9. | Many computational analysis of soil constitutive models appear to be irrational because of taking no account of or not thoughtfully considering the anisotropic deformation when they face the direct or indirect simulation of principal stress and principal strain relationship of load bearing unit
诸多土体本构模型都会直接或间接面临对受荷单元主应力主应变关系的模拟，但由于不考虑或考虑各向异性变形特性不周，对各向异性变形问题的计算分析就会出现不合理。 |
| 10. | Taking the results as boundary constraint and the velocity field of horizontal movement after transforming reference frame as the load of fem node , the velocity field of horizontal movement in the region is simulated , the principal strain rate field and maximal shear strain rate field are calculated , the variety characteristics of the two rate fields and relation between the variety characteristics and strong earthquake preparation are analyzed
将反演结果作为边界约束并将变换参考框架后的水平速度场作为有限元节点载荷，模拟区域内部水平运动场并计算其主应变率场、最大剪应变率场，以分析这两个时段中这两种场的变化特征及其与地震孕育之间的关系。 |
