stress deviator

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。

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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。

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This paper presents the experimental results for the strength character of loess in Longxi area, and probes the relationship between strain and stress under deviator stress.

本文介绍了对陇西地区黄土的强度特性进行的试验研究结果。陇西地区Q3和Q4黄土在偏应力作用下的应力&应变关系基本上可用康德纳双曲线模式来表示。

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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。

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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；

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Based on the test results of sand, mechanics of internal parameters ( plastic volumetric strain and plastic deviator strain) depending on stress path is explained. General equation expressing hardening parameter independent of stress path is proposed.

在分析砂土试验结果的基础上，揭示了基本硬化内参量（塑性体积应变、塑性剪应变）变化的应力路径相关性，提出了应力路径无关硬化参量的一般表达式。

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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。

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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

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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。

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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

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