stress deviator

Secondly, the process of drafting utilizing foreign capital Secondly, legalization. Effects of the second and third invariants of the stress deviator on metal forming

偏应力张量第二及第三不变量在塑性加工中的作用

Based on a dislocation dynamic model, a dependence between the second invariants of the inelastic deformation rate and those of stress deviator is proposed and thus a rate-dependent visco/ plastic constitutive equation is built.

基于一种位错动力学模型建立了非弹性应变率偏张量第二不变量与应力偏张量第二不变量之间的函数关系，由此给出一种粘塑性本构方程。

Moreover, the invariants of the stress deviator were employed to analyze the metal deformation process of ring compression and hydro-bulging toroidal shell by numerical simulation, and also the simulated and experimented results have a good agreement.

并且通过数值模拟的方法，采用偏应力张量不变量对圆环压缩和环壳液压胀形过程中金属的变形进行了分析，模拟结果和实验现象一致。

Three resolutions of the stress Deviator and unified yield criteria

应力偏量的三种分解形式与统一屈服准则

A relationship between the energy consumption due to particle breakage, angle of friction, dilatancy, and deviator stress ratio was derived.

对钙质砂的颗粒破碎机理进行分析，给出了关于破碎消耗能量、摩擦角、剪胀与偏应力比的关系式。

The Duncan-Chang E-B model is used to simulate the non-linear mechanical behavior of soil. With the separation of hydrostatic stress and stress deviator, a partial derivative formulation about displacement and parameter is derived in finite element evaluation.

以能较好模拟土体非线性力学行为的Duncan-Chang E-B模型为基础，通过分解应力球量与应力偏量，导出一个在有限元计算中，位移对参数偏导数的数值计算公式。

So, a deeper understanding of the significance and the role of the invariants of the stress deviator which are considered more abstractly has been given.

由此对通常认为比较抽象的偏应力张量不变量的意义与作用有更深层次的理解。

The more is principal stress deviator peak, the more possible is to emerge negative pore water pressure and to show more shear dilatation with high dry density.

干密度越大，主应力差峰值越大，表现出较大的剪胀性，孔隙水压力易出现负孔隙水压力；