应变

Then, an empirical formula of tensile strength of soil with the effects of dry density as well as water content is proposed, and the character of tensile stress-strain relationship of the clayey soil tested in this thesis.

同时，总结出了可以综合考虑干密度和含水率的抗拉强度计算公式，并且分析了本文所研究的粘性土的拉应力应变关系特征。

The elastic constants of bulk lithium with hexagonal close-packed structure under high pressures have been calculated, by using Density Functional Theory and the relationship between stress and strain.

採用密度泛涵理论第一原理贋势方法，利用应力和应变的关係计算了压力下六角密堆结构金属鋰的弹性常数。

The comparison indicates the strain variety ratio of strain and that of interface layer are closed, the theory formula based on this assumption is more reasonable and can be applied in engineering practice.

几种基本假设中，假定光纤与中间层一起变形，二者应变变化率相近最为合理，在此基础上推导出的理论公式可应用于工程实际。

Marc this paper carried out a finite element numerical simulation on the forming process of cold extruding for the starlike sleeve of constant speed cardan joint of car. The interrelated technological problems of numerical simulation were discussed in detail, the variation curve of extruding force during the course of loading, the cloud chart, which varies along with time, of temperature field distribution of workpiece, the equivalent plastic strain cloud chart of workpiece and the stress distribution cloud chart of diem inner ring were obtained thus explained fairly nice the reason of fatigue damage of dies.

Marc对轿车等速万向节星形套冷挤压成型过程进行了有限元数值模拟，详细讨论了有关数值模拟技术问题，得出了挤压力在加载过程中的变化曲线、工件随时间变化的温度场分布云图、工件等效塑性应变云图及模具内圈的应力分布云图，较好地解释了模具疲劳破坏的原因。

After 25% deformation at 850℃, and relaxation for 6 to 30 seconds, a great deal of fine Nb particles precipitates in steels, the size of particles is less than 10nm. With the increase of relaxation time, the amount of precipitates starts to decreases, the size coarsen to greater than 10nm.

在850℃变形后随驰豫时间的延长，在6～30秒内有大量细小的Nb粒子应变诱导析出，其尺寸小于10nm，驰豫时间再进一步延长，析出数量开始减少，粒子的尺寸粗化为10nm以上。

According to the forced state of rock mass, transmissibility coefficient was defined as the function of stress and strain which can reflect the evolution law of it.

根据岩体受力状态的不同，将渗透系数分别定义为应力和塑性应变的函数，能够相对合理地模拟渗透系数的演化规律。

These problems include the selfadjointness of the coefficient matrix operator, the functional of the matrix operator equation, the equivalence between variational problem and boundary value problem of eddy-current fields, and the extreme value principle of the functional.

本文首先从求解时谐涡流场的〓-ψ法与〓-Ω法的矩阵算子方程出发，提出了时谐涡流场的统一矩阵算子方程，进而系统地讨论了该方程的系数矩阵算子的自伴性、矩阵算子方程的泛函、涡流场边值问题与对应变分问题的等价性以及泛函的极值原理。

And the singularity exponent is uniquely determined by the viscosity coefficient of the material.

在线性硬化条件下，裂纹尖端的应力和应变场具有相同的幂奇异性，奇异性指数由材料的粘性系数唯一确定。

But it does not change the variation of coercivity with tension and compression.

但175℃时效并不改变矫顽力随拉伸和压缩的变化，亦即不改变预应变引人的背应力。

Inorder to reduce periodicity of cold-roll forming processs and improve the quality of products and me- chanical property the explicit dynamic finite element method with the software of ANSYS/LS-DYNA to simulate the cold-roll forming processs of channel stell,is studied including deforme,stresses and stains in the forming process.

采用ANSYS里的LS -DYNA模块对槽钢辊式加工工艺进行显示动力学有限元法模拟，分析成型中轧件的变型特点及应力应变分布，为冷弯成型CAD\CAE技术提供有力的实验数据和理论支持，最终应用于实际生产。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。