颗粒土壤常以应力不变量( stress invariant)作为回弹模数组成的关系;而黏性土壤则以轴差应力 ( deviator stress )作为其组成的关系。
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stress invariant criteria 应力不变量准则
the second stress invariant 应力第二不变量
first rear axle stress invariant 初次应力恒定值
invariant of stress 应力不变量
invariant of stress tensor [力] 应力张量不变量
stress s invariant 应力不变量
stress tensor invariant 应力张量不变量
The main factors such as pressure, the third invariant of stress tensor, strain hardening and softening, stain rate and tensile damage have been taken into account in the constitutive model.
该本构模型全面考虑了压力、应力第三不变量、变形的硬化和软化、应变率强化以及拉伸损伤等各个影响因素。
The tests prove that saturated soils are a kind of strain hardened media and stress wave will maintain shock wave characteristic invariant during shock wave dynamic loading.
试验证明，饱和土属于应变硬化介质，在激波动力加载条件下，土中应力波将保持其激波特征不变。
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