查询词典 fatigue of metal

In order to investigate fatigue performance of RC beams strenthened with CFL,static and fatigue tests at different ambient temperatures of 20°C,50°C and 80°C were carried out.

为了研究CFL增强RC梁在不同温度下的疲劳性能，分别在20°C、50°C和80°C的温度条件下对CFL增强RC梁进行了3点弯曲静载和疲劳试验。

In order to find the signs of chronic fatigue syndrome and study the relation of CFS and exercises, we researched the coenocyte＇ s gene expression in peripheral blood of women with chronic fatigue syndrome before and after exercises load.

为了寻找慢性疲劳综合症的标志物，并研究慢性疲劳综合症与身体锻炼之间的关系，对患有慢性疲劳综合症女性的运动前后外周血单核细胞基因表达谱进行了研究。

Anti-fatigue, increase energy, stamina - Maca amino acids, minerals zinc, taurine and other ingredients can significantly combat fatigue.

导读： GNG玛咖主要功能：1、抗疲劳、增强精力、体力——玛咖中氨基酸、矿物质锌、牛磺酸等成份能明显对抗疲劳。2、改善性功能，增加精子数量，提高精子活力——独有的生

On the basis of this model and a cycles-based model of fatigue strength degradation for composite laminates, a probability distribution model of fatigue strength degradation, which is based on the ratio of initial stiffness to residual stiffness, for composite laminates was derived and a methodology was given for determination of the parameters in the model.

本文从唯象学的观点提出了一个复合材料疲劳剩余刚度衰退模型，根据该模型导出了基于疲劳剩余刚度比的复合材料层合板疲劳剩余强度概率分布模型，给出了确定该模型中各参数的计算方法。

Fatigue, and then the fatigue life of the creeper tread was predicted after simulation.

Fatigue进行仿真分析，得到了履带板的疲劳寿命。

The curve of fatigue crack growth rate is calculated, and the behavior of fatigue crack growth is simulated.

计算了疲劳裂纹扩展速率曲线，模拟了疲劳裂纹的扩展行为。

In the research of high cycle fatigue of concrete, the test means of cyclic loading between the set constant or various upper limit and low limit of force or stress has been extensively used. But this kind of test means can't be used to study the behavior of concrete low cycle fatigue under large strain.

同时高周疲劳问题研究中使用的在设定的力或应力的上下界限之间重复受力的试验方法已无法用于混凝土高应变低周疲劳性能的试验研究。

Constant amplitude reversed cyclic load tests were simulated with the aid of software ANSYS/Fatigue, so that to obtain the used coefficient of fatigue life.

本文使用ANSYS/Fatigue软件进行了常幅偏移下的性能分析，来获取结构的疲劳寿命使用系数。

Constant amplitude reversed cyclic load tests were simulated with the aid of software MSC/Fatigue. Fatigue life predictions can be made for this class of connection using relationships analogous to the well-known Manson-Coffin strain-life equation for metals.

本文使用MSC/Fatigue软件进行了常幅偏移下的性能分析，类似于著名的Manson-Coffin公式，建立了所研究节点的塑性转角和寿命的关系。

This study consists of three parts. Firstly the equivalently accelerative corrosive environment is determined through the analysis of statistic data of corrosion environment. Secondly the fatigue test is carried out under the constant amplitude cyclic loading for the specimens which are exposed in the corrosive environment for equivalent calendar time of zero year, 3 years, 8 years and 13 years. Four S-N curves with different corrosive time are obtained based on the fatigue experiment. Finally the regression method of S-N curves for experimental data is researched and a weighted least square fit is put forward in which the weigh of a group of test data is inversely proportional to the length of the confidence interval.

进行了以下几个方面的工作：(1)通过实测、统计、分析得到了当量加速环境谱；(2)完成了在当量加速环境谱下预腐蚀日历年限0年、3年、8年和13年的腐蚀试验，并进行了成组常幅疲劳试验，得到了不同预腐蚀年限下的S-N曲线；(3)进行预腐蚀后的S-N曲线的数据拟合方法的研究，提出了考虑置信区间长度影响的加权最小二乘法。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

The upper front part of a saddle;a saddlebow.

前鞍桥马鞍前面的上部分；前鞍桥