应力轴

In this paper,the factors influencing fatigue life of bellows were sfudiad and analysed by a statistical method.

运用统计学的方法对影响膨胀节疲劳寿命的因素进行了分析和研究，证实了EJMA标准对多层膨胀节的应力计算，对非轴向位移的当量化处理以及对压力应力的影响系数方法都是恰当的。

The numerical simution results show that there is slug flow in the plunger-cylinder of the annulus pipe,because of the existence of Casson yield stress.

数值研究结果表明，由于Casson屈服应力的作用，轴向同心环空内存在柱塞流动，柱塞的大小与Casson屈服应力成正比，与压力梯度成反比。

Linear hardening model is used for residual stresses after autofrettage pressurization and after autofrettage depressurization.

采用线性强化模型，得到了液压联轴器外套自增强卸载后的残余应力、自增强压力和安装后的应力公式。

Several factors are taken into account, such as design parameters, eccentricity ratio, loading history, quantity of carbon fiber reinforcement and space of straps.

结果 给出了柱的荷载挠度曲线、混凝土轴向应力的分布情况、纤维布应力的分布情况等。

The current research points out that for the CFCHS joints the linear extrapolation method can be used for chords,whereas the quadratic extrapolation method must be used for braces.The hot spot stress distributions on the CFCHS joints tend to be more uniform and their SCFs become smaller significantly,compared with the CHS joints.Axial tension on the brace puts the CFCHS joints at a disadvantage,which produces higher SCFs than axial compression.The effects of nondimensional geometric parameters β,τ and γ on SCFs of the chords of the CFCHS joints are basically the same as those of the CHS joints,but for the braces,there is a bit difference in the effects of parameters β,τ and γ between the two kinds of joints.Concrete has the function of improving the CFCHS joint rigidity and then decreasing SCFs which is expected to increase fatigue strength,but concrete strength grade does not exert significant influence on SCFs.

研究表明：CFCHS节点的热点应力，对主管可采用线性外推方法，对支管需采用二次外推方法；相比CHS节点，CFCHS节点的热点应力分布趋于均匀，SCF显著减小；CFCHS节点支管轴向受拉比受压不利，SCF增大；CFCHS节点几何参数β，τ，γ对主管SCF的影响效应与CHS节点基本一致，但是对支管SCF的影响效应与CHS节点有些差异；混凝土的作用主要是改善CFCHS节点刚度，从而降低SCF，并预期可提高疲劳强度，但混凝土自身强度等级的高低没有显著影响节点的SCF。

Turned perfect complete stress-strain curve in uniaxial compression test into Cauchy stress- logarithmic strain curve,so the tangential modulus can be acquired which is available for analyzing large deformation.

将材料常规单轴压缩全过程的应力-应变曲线转化为真实应力-真实应变的曲线，从而得到可用于大变形分析的切向弹性模量。

The monotone property of multivariate function proved that the maximum stress strength point exists on the inner surface of

应用多元函数单调性理论，证明了在三轴应力条件下管体中最大应力强度值出现在套管内壁。

Facet joints oriented parallel to the sagittal plane provide substantial resistance to axial rotation but minimal resistance to shearing forces, whereas joints oriented more in a coronal plane tend to protect against flexion and shearing forces but provide minimal protection against rotation fig.

小关节朝向趋于矢状位可以限制脊柱的轴向旋转但是减少了对剪应力的限制。而趋于水平的小关节可以更好的保护屈曲和剪切下的应力，但对旋转的抵抗力降低（图3）。

Dam deformation and inner water pressure of the penstock are main factors to cause axial tensile stress and circumferential tensile stress respectively.

坝体变位和管内内水压力分别是背管产生轴向拉应力和环向拉应力的主要因素。

The apparatus for static and dynamic universal triaxial and torsional shear soil testing is employed to perform stress-controlled cyclic coupled vertical and torsional shear test by different cyclic stress paths. Through a series of tests on saturated clay, the dynamic deformation, stress-strain relationship and dynamic strength are systematically investigated under rotation of principal stress axes.

针对饱和黏土，利用土工静力－动力液压三轴－扭转多功能扭剪仪进行了均等固结下的耦合循环剪切试验，着重研究了不同循环应力路径对应力－应变关系和强度特性的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。