应力

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。

In the process of venting and exposure, the compressive component increases rapidly with the admission of room air and then reaches saturation, followed by a logarithmic decrement of the compressive state in the succeeding hours.

真空室放气和样品暴露大气的过程中，首先是压应力迅速上升，达到饱和状态，然后有一个与对数时间呈现线性关系的压应力衰减过程。

By means of statistical inference as well as hypothesis test method, it is determined that the variables of compressive stress and shearing stress are of Extreme-value Ⅰ Distribution and that the variables of frictional coefficient and cohesion coefficient are of Logarithmic Normal Distribution.

应用统计推理和假设检验方法分析得知，压应力与切应力随机变量呈极值Ⅰ型分布，摩擦系数与粘结力系数随机变量呈对数正态分布。

Given that product life follows lognormal distribution,fatigue life scatter factor method is applied to evaluating the reliability of product with 1 or 2 samples.

引言针对小子样产品，文献 [1～ 2 ]提出了基于经典方法、通过提高产品承受的应力并运用应力强度干涉模型进行产品可靠性评估。

The delay fracture time is shortest in aqueous solution and longe...

试验结果还表明，当空气相对湿度大于70％，在载荷应力强度因子较高的条件下能发生明显的应力腐蚀延迟断裂。

Above all, the meaning and value of the paper are as follows. By using FEM the stress of 3D finite model is analyzed. The trend of stress in different parts of the tooth is got and questions about the intensity of the loxodrome normal circular-arc spiral bevel gear are answered. Results of this paper give the important bases for applying the new gear into practice.

综上所述，本论文的意义与价值在于：应用有限元所提供的平台，对新型齿轮进行三维有限元的应力分析，得到该齿轮副在实际载荷下各部分应力变化规律，从工程角度回答了斜航式法向圆弧螺旋锥齿轮的强度特性等问题，为其技术实现提供重要依据。

In view of the microscopic mechanism of ferromagnetic material, the influence of internal stresses on magnetic domains and domain wall is studied, and the influence of internal stresses on initial susceptibility is also explored for different variation states of domain movement.

3从铁磁晶体的微观机理出发，研究了内应力对磁畴和磁畴壁的影响机理，讨论了内应力在磁畴运动变化不同状态下对起始磁化率的影响。

The investigation is based on the new conception that some internal changes in materials when treated by high intensity magnetic field will cause residual stress to reduce.

材料内部的残余应力对工件的质量与寿命有着重要的影响，因而残余应力的控制与消除是材料加工领域的一个重大课题。

The result showed that,if only the necessary but insufficient condition,the equilibrium condition ,was adopted to deal with the infinite uncertain boundary condition,the solution to the stress was non-unique due to the fact that the boundary problem here was a mal posed mathematic problem.

通过两个典型的半无限体实例，对水平表面作用无限均布压力下弹性地基的应力和位移解答进行研究，结果表明：对边界条件不明确的无限边界仅采用解答的必要非充分条件——平衡条件来等效处理，其应力解答不是唯一的，因为此时该边值问题不是一个适定的数学问题。

Corresponding mathematics model was developed, hole-edge stress analysis on composite material plate with multiform holes was carried out, accurate boundary conditions was founded by conformal mapping method, boundary problems of the two stress functions could be treated by affine transformation in the same way synchronously.

建立了相应的数学模型，对含不同孔型复合材料板进行了孔边应力分析，通过保角映射方法建立精确的边界条件，解决了复杂孔型的边界条件问题，借助仿射变换能同时并且同方法的处理这两个应力函数在边界上的问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。