The relaxation of residual stress after winding and peening is analyzed. 但是弹簧钢丝在绕簧及喷丸后均存在着很大的残余应力。
Used for testing indexes of polyurethane monofilament, such as breaking tenacity, elongation at break, load at specified elongation, relaxation of stress, plastic deformation, etc. 用于测定氨纶丝断裂强度、裂伸长率、伸长负荷、力松驰、性变形等性能指标。
Physiologically, relaxation is the opposite of stress. 从生理上讲,放松是压力的对立面。
According to them, relaxation, the opposite of stress, is essential for a healthy mind and body. 他们以为,与压力相反,放松才是健康的身心所必不可少的。
Relaxation can reduce the negative effects of stress on the immune system. 放松可以减弱压力对免疫系统的负面影响。
The results show that, under cyclic pressure and homogeneous temperature field, temperature has more influence on the relaxation of autofrettage residual stress than cyclic pressure. 结果表明,在稳态温度场和交变压力的共同作用下,温度对自增强残余应力松弛的影响比交变压力的影响更大。
Based on the residual stress distribution law around the rail bolt hole induced by cold expansion and the local strain analysis, a model which considered the relaxation of residual stress during cycling was built to predict the crack initiation. 建立了基于钢轨螺栓孔残余应力分布规律和局部应变,并考虑残余应力衰减的疲劳裂纹萌生寿命预测模型。
The formation of the nano-sized thermal groove boundary that is harmful to the next processing step of etching was considered as the relaxation of the initial tensile stress in Cr film and the lower diffusion rate during laser oxidation at the lower temperature. 薄膜表面形成的纳米尺寸的楔型晶界将对下一步的刻蚀产生不良影响,这是由于较低温度下进行的激光氧化会引起较低的扩散速率和初始应力释放。
Further study on the elasticity, viscosity, relaxation of stress, e-plasticity deformation and thixotropy of the protein foods, carbon hydrate foods and oil foods; 蛋白质食品、碳水化合物食品和油脂食品的弹性模量、黏度、应力松弛、弹塑性变形、触变性等问题进行了较详细的研究;
The mechanism of residual elongation after relaxation of stress has also been studied. 有关残余伸长的机理曾有人作了研究。
Under the same conditions, the interfacial failure of composites differs for different relaxation of the thermal stress of interfaces. 不同的复合体系由于其界面松弛热应力的能力不同,在同样条件下的冷热循环过程中,界面所受到的损伤程度有差异。
Relaxation Behavior of Complex Residual Stress of Material at High Temperature 材料复杂残余应力的高温松弛行为
The authors also successfully predict the relaxation of the residual stress under successive cyclic loading. 计算预言了脉动循环载荷下自增强残余应力的松弛现象。
The paper is trying to investigate the development and relaxation of flow stress during injection process, and to predict the effects of molding conditions on residual stresses and molecule orientation. 本文旨在研究聚合物熔体在注射成型中流动应力的建立及松驰过程,预测各种工艺条件对残余应力及分子取向的影响。
The crack healing mechanism is attributed to the relaxation of residual stress and the oxidation of SiC particle at the crack surface. 裂纹愈合的机制主要归结于退火过程中残余应力的驰豫导致扩散键合和裂纹表面碳化硅颗粒的氧化作用。
The method to measure the stress state on surface of material was introduced, and the state as well as the thermal relaxation behavior of residual stress for cross weld of low carbon steel was investigated. 介绍了材料表面应力状态的X射线测量方法,研究了低碳钢交叉焊缝残余应力状态及其热松弛行为。
Relaxation of the residual stress caused by circular loading was investigated experimentally. 文中还就残余应力在循环载荷作用下的松弛问题进行了实验研究。
Optimal Determination of Stress Relaxation Coefficients of Thermal Stress in Massive Concrete 大体积混凝土温度应力松弛系数的优化确定
A modified test method of stress relaxation is put forward. Values of stress relaxation of flange bolt are measured with the apparatus based on the method under room temperature and the relaxation equation curve is fitted. 提出了一种改进的应力松弛试验方法,并用改进的装置测量了法兰接头紧固螺栓的室温应力松弛值,拟合了松弛方程曲线。
As for ur due to pore-water pressure diffusion, it can result in the reduction of dynamic strength under the action of a larger dynamic load because of the reduction and relaxation of effective stress in soil. 孔压扩散引起的传递孔压也会使土中有效应力发生减小和松弛而导致动强度在较大动应力下有所降低。
The Phenomenon and mechanism of relaxation of compressive residual stress under static loading at the initial stage of fatigue and the optimum residual stress field induce by shot peening have been investigated. 本文研究了喷丸残余应力场在疲劳加载初期的静载松弛现象及机理,并对最佳喷丸残余应力场进行了探讨。
Influence of Buffer Structure on Relaxation of Stress in Si_ ( 1-x) Ge_x by Raman Spectra Raman谱研究不同缓冲层结构对Si(1-x)Gex应力弛豫的影响
Experimental Research on the Relaxation of Residual Stress of Autofrettaged Thick-walled Vessel under Circulation Pressure 循环压力下厚壁容器自增强残余应力的松弛试验
The decreasing hot-carrier damage is attributed to the replacement of Si H weak bonds by Si F bonds and the relaxation of Si/ SiO_2 interface stress. SiF键释放了Si/SiO2界面应力,并部分替换了SiH弱键是抑制热载流子损伤的主要原因。
Objective By way of measure the stress of elastomeric chain periodically after three different loads were load on, to evaluate the stress relaxation of it, comparing the stress relaxation of the three different loads. 目的通过定期测量链状橡皮圈负载后应力的变化,研究它应力松弛的过程及在不同负载下应力松弛率的异同。
Relaxation Behavior of Residual Stress in an Extruded Tube of the SiC_w/ Al Composite at High Temperature 挤压管状SiCw/Al复合材料中残余应力及其高温松弛行为
Methods To perform the experiments of stretching, relaxation of stress and creep test on ACL of fresh human cadavers. We get the database of maximum load, ultimate strength, maximum strain, and the elastic modulus. 方法对正常国人新鲜尸体膝关节前交叉韧带进行系统的拉伸、应力松驰、蠕变实验,得出最大载荷、强度极限、最大应变、弹性模量等;
The stress relaxation function and the constitutive equation of stress and strain were obtained with Fung's Quasi Linear Viscoelastic Theory fitting the experimental results. 用拟线性粘弹性理论对实验结果进行拟合,获取了组织应力松弛和应力应变关系的基本参数值。
For the powders milled for 60 h, besides the relaxation of crystal defaults and lattice stress, the crystallization of amorphous and the precipitation of NiW phase were both evident during the annealing. 球磨60h粉末在退火过程中除了晶体缺陷和应力释放等过程以外,有明显的非晶晶化和NiW相析出过程。
Both grating wavelengths of x-and y-polarization subsequently experience a red-shift due to the relaxation of mechanical stress and the increasing core temperature in many microseconds. 接着,在几百毫秒内,机械压力逐渐减弱,纤芯温度逐渐增加,这两个因素导致x偏振和y偏振的光栅波长都红移。