1) normal stress difference
法向应力差
1.
The physical experiment on hydraulic fracturing propagation in laboratory showed that the penetration of hydraulic fracture into the salutatory barrier mainly depended on the normal stress difference between salutatory barrier and pay zone.
室内物理模拟实验研究发现,突变体法向应力对水力裂缝能否穿过突变体起着决定性作用,约4MPa的法向应力差可以促使水力裂缝穿透突变体,继续沿原来的方向延伸。
2.
he flow of a power-law fluid flowing through an enlarged conical channel wasstudied, thus regressive relationships between die swell ratio B and normal stress difference N were obtained.
从连续方程和运动方程出发，对一种幂律流体流过扩张型圆锥流道时的流动进行了分析计算，得到了挤出胀大比Ｂ与法向应力差Ｎ之间的回归关系。
3.
Results include secondary flow,axial velocity and normal stress difference,which are affected by the Weissenberg number and Reynolds number.
结果包括了Weissenberg数和Reynolds数对于粘弹流体流动的二次流、轴向速度以及法向应力差的影响。
2) first normal stress difference
第一法向应力差
1.
Prediction of first normal stress difference during extrusion flow of tube compound;
内胎胶挤出流动中第一法向应力差的预测
2.
The melt elasticity of PP filled with CaCO3 of nano-particles or micron particles or their assembling was studied by capillary rheometry measuring the values of first normal stress difference(N1) and extrudate swell(B) of the systems.
利用高压毛细管流变仪测量的第一法向应力差(N1)和挤出胀大比(B)研究了纳米CaCO3和微米CaCO3分别填充和同时填充聚丙烯(PP)体系的熔体弹性。
3.
By processing the datas with statistics, the standard values of the viscosity and the first normal stress difference of the certified reference material in various steady shear rate were defined and the related expanded uncertainties of which were given.
经对测定数据进行统计处理 ,确定了该标准物质在不同静态剪切速率下粘度和第一法向应力差的标准值并给出了其相对扩展不确定度。
3) primary normal stress difference
第一法向应力差
1.
Combining the theory of continuous medium mechanics with the theory of rheological measure, this paper studied the dynamic extrusion process of polymer melt under superimposed vibration and established the mathematical formula of primary normal stress difference of polymer melt under vibration force field.
基于连续介质力学、高分子微观结构动力学和流变测量学的基础理论,推导出了平行叠加振动条件下高分子熔体第一法向应力差的计算公式;相应地,建立了在自行研制的恒速型毛细管动态流变装置上计算高分子熔体第一法向应力差的步骤和方法。
2.
The primary normal stress difference at the wall of the capillary under the vibration force field was calculated besed on the set-up representative law for the polymer elastic behavior under the vibration force field.
实时采集毛细管的挤出胀大值 ,借助已建立的振动力场下聚合物熔体弹性行为的表征公式 ,计算振动力场下聚合物熔体在毛细管壁处的第一法向应力差。
4) normal stress difference coefficient
法向应力差系数
5) second normal-stress difference
第二法向应力差
6) normal stress
法向应力
1.
The values of normal stress in suck string generated by visco?-elastic fluid and eccentricity brought out by sucker string were measured quantitatively.
大庆油田实施聚合物驱油以后 ,出现了抽油杆受力状况恶化、抽油杆柱严重偏磨的现象 ,为此开展了粘弹性流体水动力学理论和试验研究 ,得出了粘弹性流体在抽油机井筒内的流动规律及对抽油杆柱法向应力的影响规律 ,定量测出了粘弹性流体对抽油杆柱的法向应力值和抽油杆柱产生的偏心率。
2.
For the post-tensioned prestressed steel-concrete composite beam,a method of calculating the concrete normal stress is presented.
针对在混凝土翼板中设置后张预应力的连续组合梁,提出由分担预加轴力、主弯矩和次弯矩产生的混凝土法向应力计算公式,主要分析施加于混凝土翼板的预应力通过剪力键向钢梁传递的力学模型,建立混凝土翼板承担的预压力沿梁纵轴的分布函数和理论解,求得考虑剪力键柔性的混凝土法向应力计算公式,作为组合梁抗裂设计依据。
补充资料：剪应力差法
见光弹性法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条