yield stress

Tensile modulus and yield stress of blends increase with concent ratio n of PMMA.

结果表明，共混物的拉伸模量、屈服应力随PMMA含量增加略有增大。

The pipeline steel with strain-based design is usually characterized by high initial work hardening rate, good ductility, and low yield stress to tensile strength ratio.

抗大变形管线钢就是基于应变设计的方法得到的具有连续屈服、较低的屈强比、较高的加工硬化指数以及均匀塑性变形延伸率等特性的管线钢。

The yield stress of this MR fluid is 70 kPa at a shear rate of 110 rad/ s and in a magnetic field of 600 mT.

通过自行研制的磁流变仪测得该磁流变液在磁场为600mT，剪切率为110rad/s时的剪切屈服应力达到70kPa。

The influence of thermal oxygen on the tensile yield stress, tensile breaking stress, impact strength, elongation at break, melt point and the heat of melting of PF Nylon 1212 is investigated.

通过热氧老化试验，考察了热氧对尼龙1212拉伸屈服应力、拉伸断裂应力、冲击强度、断裂伸长率、熔点、熔融热的影响。

Factorial experiment design was carried on by dint of Design-Expert software for studying the yield stress and apparent viscosity. By variance analysis finding the remarkably influential factors, thereout the equations of the yield stress and the apparent viscosity were obtained.

借助Design-Expert试验设计软件对屈服应力和表观粘度进行正交试验，通过方差分析寻找显著影响因素，并得到了屈服应力和表观粘度的公式。

Whn a capillary viscometer is used to measure the two constants of a Bingham body, the coefficient of viscosity K and the yield stress f, a quartic equation, is obtained and there are four solutions.

用毛细管测定宾汉体的两个常数，即粘度系数K和屈服应力f时，方程是四次的，会有四组解答。

The results showed that tensile strength, tensile yield stress and tensile breaking stress were increased with the increase of bore distance;

结果表明，随筛板孔距的增加，其拉伸强度、拉伸屈服应力及拉伸断裂应力均提高；

The torsional stress of element in elastic stage and plastic stage is analyzed, the torsional failure phenomenon of element is theoretically explained, and three quarters factor of yield stress formula in torsinal test of circle shaft of plastic materials is certificated.

对构件在弹性阶段和塑性阶段时的应力进行了分析，对构件扭转破坏现象进行了理论上的解释，并对塑性材料的圆轴扭转实验屈服应力公式的3/4系数给出了证明。

Residual stress concentration a notch depends on both notch geometry and yield strength of the material.

缺口根部的残余应力存在应力集中效应,应力集中值不仅取决于缺口几何形状而且和材料的屈服强度有关.

Correlation between yield stress and strain rate for metallic materials and thermal activation approach

金属材料屈服强度的应变率效应和热激活理论

The effect of relevant process parameters, namely tool radius, sheet thickness, step size, wall angle, yield stress and hardening exponent, upon their intensity was statistically analyzed.

对工具头半径、板厚、加工步长、成形角、屈服应力和加工硬化指数等参数对成形缺陷的影响程度做了计算。

When the average diameter increased, the size distribution narrowed and the tacticity higher of nanometer cubic calcium carbonate, the thixotropy and yield stress of the suspension were enhanced.

当立方纳米碳酸钙平均粒径越大，粒径分布区间越窄，颗粒规整程度越高，形成的悬浮体触变性越好，屈服应力也越高。

The elastic modulus, tensile yield stress, fracture stress, and elongation of n Cu are 0.65, 1.42, 1.82 and 0.15 times of that of p Cu, respectively.

纳米铜的弹性模量、屈服强度、断裂强度和延伸率分别为多晶粗晶铜的0.65,1.42,1.82和0.15倍。

The PP/ PPga blend showed higher improvement in Youngs modulus in comparison with PP, while impact strength and tensile yield stress changed a little.

对PP/PPga（100/8）共混体系，PPga加入使杨氏模量提高，但对冲击强度和屈服强度影响不明显。

The effect of loading rate, test temperature and pre-plastic deformation on hydrogen induced apparent yield stress reduction have been investigated.

研究了变形速度，试验温度以及预先塑性变形程度对氢致表观屈服强度下降的影响。

The results show that the influences of the glass beads content and its diameter on the tensile yield stress and strain at yield are not significant.

结果显示，微珠含量及其直径对复合物的拉伸屈服应力和屈服发生时的应变影响不太明显。

Conventional yield stress, breaking stress and breaking extensibility of the blends with different proportions were also measured.

测定了共混物的屈服应力、断裂应力和断裂伸长率。

It was found that metallic wall and fold-in appear only when thick sheet is processed with small radius tool. And after their appearance, their intensity increases as the wall angle, step size and yield stress increases.

结果发现挤出飞边和向内褶皱在使用小工具头加工厚板的时候容易出现，其程度随成形角、加工步长和屈服应力的增长而增大。

Temperature and strain rate dependence of yield stress of Al-Li-Cu-Mg-Zr alloy

Al－Li－Cu－Mg－Zr（8090）合金屈服强度与变形温度和速率间的关系

The surface characteristics of the human temporomandibular joint ( TMJ) disc specimens in normal 6% stress relaxation and 0.05 mm/ s tensile yield strain conditions were observed with the scanning electronic microscopy.

用扫描电镜观察正常人体颞下颌关节盘加载后阶跃应变为6%时应力松弛和以0.05mm／s加载拉伸破坏后的关节盘表面特征。

Viscoelasticity is related to some properties such as gel point, gel strength, yield stress and thixotropy.

粘弹性与胶凝温度 、 胶凝强度 、 屈服应力和触变性等参数有关.

The relationships of thickness ratio with yield stress and tensile stress of the clad were established.

在传统的混合法则基础上，建立了宽度方向应力与相对厚度比和拉伸应变之间的关系。

The increment of yield stress due to adding coarse gravels in the mud slurry.

细泥浆体中加入不同含量之粗颗粒体后,其屈服应力随加入量之增加而增大.

A blood viscosity "Quality Control Substance" was studied for 3 years continuously for the apparent viscosity values, the curve gradient of viscosity versus shear rate, Casson yield stress and Casson viscosity, we found that above parameters decrease according to time going on.

对于一种血液粘度质控物进行了连续3年的表观粘度、剪切稀化曲线陡度、卡松屈服应力和卡松粘度的观察，发现该物质随着时间的进程上述参数逐年变低；

Effects of water stress on growth and yield of rice were studied in jointing-booting stage.

试验研究了拔节孕穗期水分胁迫对水稻生长发育及产量的影响.

Oxgen precipitates ( useful for gettering ) can reduce the yield strength ( critical shear stress ) up to fivefole.

氧沉淀 ( 可用作吸杂 ) 会使屈服强度 ( 临界剪应力 ) 降低为五分之一.

In order to avoid such a failure, an empirical model in terms of four process parameters, namely sheet thickness, step size, wall angle and yield stress, was developed to compute the minimum safe limit of tool radius.

为了避免这种失效，本论文中提出了一个以板厚、加工步长、成形角和屈服应力为变量的经验公式，以计算工具头半径的最小值。

Based on the fundamental theoretics of material science, mechanics, thermodynamics and physics, the theoretical formulas for yield stress and elongation of materials have been derived in this paper that they are difficult problems in material science and metal forging technology.

本文根据材料学、力学、热力学以及物理学的基本知识，推导出了材料和压力加工等学科领域中的两个重要难题，即材资的屈服应力和延伸率的理论解析式。

Because there are high yield stress, high reflect speed rate, low energy consumption, small pollution effect, etc., MR ( magnetorheological) becomes first choice for damper material.

MR材料具有屈服应力大、响应速度快、能耗低、显著的流变效应、对污染不敏感等特点，逐渐成为了新型阻尼器的首选材料。

The results showed that the notched Izod impact strength and conservation rate of tensile yield stress of HDPE E-TMB were markedly superior to those of HDPE elastomer, while the conservation rate of elastic modulus in bending of HDPE E-TMB and HDPE elastomer was nearly the same.

结果表明，HDPE/ETMB的悬臂梁缺口冲击强度的提高幅度、拉伸屈服应力保持率均显著优于HDPE/弹性体，二者的弯曲弹性模量保持率基本相同；