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.

The test results indicate that the modulus of deformation and the strength of samples are reduced by wetting, that slaking deformations consists of either slaking volumetric strain or slaking deviator strain and that the slaking deformation is reduced with compacting factor of the samples is increased.

取得的湿化变形试验成果表明，湿化使土样的变形模量和强度均有所降低；湿化变形不仅包括湿化体应变，而且包括湿化偏应变；

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。

Using the resonant column triaxial test and static triaxial test results, and based on elastic theory for 1% of axial strain, the deviator stress and G max are found to be related.

同时本研究利用静力三轴试验结果，以弹性理论推求于轴应变为1%时所对应之偏应力与最大剪切模量具有相关联性。

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。

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。

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；

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

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。

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

This paper discusses the method of development for developable surface in order to solve the development problem in engineering.

为解决工程实际中的曲面展开问题，以微分几何学中可展面展开的基本原则等相关理论为基础，提出锥面和切线曲面展开的理论方法。

Algorithm for constructing G~ 2 continuous interpolation curve on developable surface

可展曲面上G~2连续的曲线插值方法

Developable Surface Made by Straight Line on Rectifying Place of Space Curve

空间曲线的从切线构成的可展曲面

Development of Developable Surface and Its Application

可展面在平面上的展开及其在工程上的应用

Method of development for developable surface and its application

可展面展开方法及其应用

At present, the research is limited in some special surface as developable surface, the research in free-form surface has no success in theory and method.

目前这方面的研究局限于一些特殊曲面，如可展曲面，对自由曲面则无系统的理论和方法。

A developable surface is one that can be made from a flat sheet without any in-plane strains.

可展曲面是一个可以由平板在不发生任何面内应变的条件下弯成的曲面。

Curves classified by their rectifying developable

曲线按其从可展曲面分类

In order to guarantee the deuteron beam can be smoothly transport to the target, the beam envelope of pulse line was calculated by the Transport and LEADS program.

为保证氘束流能够顺利传输到靶，使用Transport和LEADS两种束流光学程序计算脉冲束线的束流包络图。

A study on detrital minerals in the sediment of the Great Wall Bay

长城湾沉积物中碎屑矿物的初步研究