剪应变是指物体受力产生变形时，体内各点处变形程度一般并不相同，用以描述一点处变形的程度的力学量是该点的应变。简单讲就是两个相互垂直的面在受力变形后以弧度表示的夹角的改变量。
The paper has finds out the E_d～εcurve under the large strain. Damping ratio changes with shear strain under different confining pressure .
得到了不同围压条件下动阻尼比随剪应变变化的关系曲线。
参考来源 - 路基压实粉土动强度特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
据此，建立基于最大主剪应变的岩土材料延性剪切破坏应变准则；
The strain criterion for ductile shear failure based on the maximum principal shear strain is established.
另外，对叠层橡胶支座的阻尼比随剪应变、压应力及荷载频率的变化情况进行了分析。
Moreover, this paper analyses the shear strain and compressive stress and loading frequency dependence of the damping ratio.
对于剪应变，在整个土层深度内，非均质土层的最大期望值大于均质土层的最大期望值；
The maximum value of the shear for the non homogeneous soil layer is always greater than that for the homogeneous soil layer in the whole depth.
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