Coal slurries were found to exhibit a wide spectrum of flow behavior ranging from newtonian at low concentrations to shear - thinning and pseudoplastic with a yield stress at higher concentrations 利用双峰级配理论,将粗颗粒煤粉加入细颗粒中可降低煤浆体系的黏度。
When the weight ration between mmt and starch was closed to 1 : 1 and 1 : 0 . 4 , the yield stress of mmt / cation starch er fluid was even lower than that of pure mmt and cation starch er fluids 而蒙脱土与阳离子淀粉的复合颗粒电流变液在电场下的屈服应力值均比相同条件下阳离子淀粉电流变液的值还低。
The panels of hull girder may collapse or buckle before it reaches the yield stress . the curve of the stress - strain is usually constituted by stable zone - , non load - shedding zone and load - shedding zone 并且船体截面的组成单元(一般是加筋板单元)在达到材料屈服应力之前还可能发生多种形式的屈曲。
The trace amounts of iron hi ast101a could affect its elastic modulus , but not its tensile stress and yield stress , at the same time decrease its plasticity and fracture toughness notably Ast101a中微量的fe元素对合金的弹性模量会有所影响,对合金的抗拉强度和屈服强度影响很小,但会大大降低合金韧性和塑性。
The results showed that the grain refining by the trace amounts of titanium could improve the tensile stress , percentage elongation and fracture toughness , but had little influence on their yield stress 结果表明, ti对晶粒的细化可以大幅提高试验合金的抗拉强度、延伸率和断裂韧性,但对合金的屈服强度影响不大。
When the weight ration between mmt and starch was closed to 1 : 1 and 1 : 0 . 4 , the yield stress of er fluid was lower than that of pure mmt er fluid though this value was higher than that of pure cms er fluid 但蒙脱土与梭甲基淀粉的质量比为1 : 1和1 : 0 . 4时,复合颗粒电流变液在电场下的屈服应力值只介于蒙脱土电流变液和梭甲基淀粉电流变液的屈服应力值之间。
It ' s we1l known that the windshield material is an organic material . it shows visco - plastic behavior which is that the stress - strain curve , the yield stress and the limited stfess varied with the material deformation rate 众所周知,风挡材料为有机材料,一方面呈现出粘弹塑性特性,即材料的应力应变曲线、屈服应力、破坏应力都随着材料变形速率的变化而变化。
Based on the essential elucidation on their respective thixotropic mechanisms , with the help of the rheogeniometer , the tests of the two representative fiber filling gels ' rheological properties including thixotropy and yield stress were carried out 文章在阐明它们各自增稠触变性机理的基础上,采用流变仪检测了两种有代表性的光纤油膏的流变学性能,其中包括触变性和屈服应力。
When the weight ration of mmt and starch was closed to 1 : 0 . 1 , the yield stress of er fluid could reach its maxium . the yield stress of the typical er fluid was over 6 . 5 kpa at 4 kv / mm electric field , which was 2 . 2 times that of pure mmt er fluid and five times that of cms er fluid , respectively 在4kv / m们以的电场作用下,该电流变液的屈服应力值达6 . 5kpa ,分别是相同条件下的纯蒙脱土电流变液和梭甲基淀粉电流变液的屈服应力值2 . 2倍和5 . 0倍。
The conception of yield stress saturation is proposed . it can be found that the flow is stabilized by both plane shearing and the increment of yield stress . the study about the linear stability of spiral taylor - couette flow is the fourth part of the dissertation 通过对螺旋t - v流动的数值模拟发现,屈服应力增大将使流场中taylor涡减弱,且当屈服应力足够大时,螺旋t - v流动重新恢复螺旋t - c流动;内桶轴向剪切运动在使taylor涡发生轴向迁移的同时也使其强度减弱。