应力周期

结果表明，振动将导致螺槽内聚合物熔体的流动速度与剪切应力周期性变化，当振动扰动系数较大时，螺槽展开方向甚至会出现瞬时压力反流。

The results show that the vibration will result in a periodic variation of the velocity and shear stress in the channel , even an instantaneous pressure backflow in the extruding direction of the channel if the disturbance coefficient of the melt is even larger .

ECs在血管中受到血流切应力和周期性张应变作用。血液动力学因素在血管重建中起重要作用，参与调控血管细胞分化、迁移、增殖和凋亡等功能。

Hemodynamics play vital role of in vascular remodeling as well as modulate the differentiation , migration , proliferation , and apoptosis of vascular cells . ECs are permanently exposed to the blood flow shear stress and cyclic tensile strain for pulsatile blood flow in vivo .

简析水闸在施工期不容忽视的应力组合周期性自动重合闸装置

Stree Combination ingored in Water Gate Construction periodic-automatic reclosing equipment

机械应力长周期保偏光纤光栅的实验研究

The Study of Mechanically Induced Long Period Fiber Grating in Polarization-maintaining Fiber

日本海与南海的风应力旋度周期变化由其冬夏季风决定。冬季影响强于夏季。

The variations of wind stress curl are dominated by the monsoons in Japan Sea and South China Sea and the value is stronger in winter than in Summer .

利用粘滞模型计算了印缅板块地区壳幔的理论应力释放周期为56年，与该地区的强震活动周期基本吻合。

The theoretical stress releasing period of crust and mantle in India and Burma plate is calculated by viscoelastic model . It is about 56a and close to the strong earthquake activity period .

风应力旋度有周期为2个月左右的变化。

Wind stress curl has a periodic variation of two months .

在铝薄带超常铸轧过程中，铸轧辊套温度场周期性的变化引起铸轧辊套内热应力场的周期性变化。

Roll shell 's thermal stresses cyclically vary with the changes of its temperature field in the process of twin roll casting .

胶接和胶铆试样的疲劳性能优于铆接试样，在相同频率下的破坏应力或循环周期都高于铆接试样。

Bonded sample and bond-riveted sample have better fatigue properties than riveted sample , and their rupture stress or cycle period at the same frequency is greater than riveted sample .

计算结果表明，由于反射波的影响，柱体中心动应力峰值发生周期性振荡。中心处的径向动应力的响应历程与切向动应力相同。

The calculation results reveal that stress peak at the center oscillates periodically due to effect of reflected wave and that the history of the radial stress peak at the center is the same as that of the tangential stress peak at the center .

公路桥梁橡胶支座的使用寿命与应用对策大型预分解窑衬料承受的应力和提高使用周期的措施（上）

ON THE SERVICE LIFETIME OF RUBBER BEARING AND COUNTERMEASURES OF APPLICATION FOR HIGHWAY BRIDGES Stress Bearing and Lifetime Improvement of Large Kiln Linings (ⅰ)

∑（+LEi）表明第4阶段的混沌程度最高，对应应力水平适中的周期性运动阶段。

And ∑( + LEi ) states that chaotic degree of the forth phase is the highest according to periodic movement of hard roof , of which the stress level is middle size .

完成减速器主要零部件有限元应力分析和变形分析，得出零件在受载情况下的应力应变图和相应零件受载应力分布周期变化图。

The finite element analysis for the main parts of reducer is fulfilled and the stress and deformation curves of the main parts in a running cycle are also obtained .