用指数函数对波浪和海冰作用下平台构件的疲劳应力、应力循环次数和环境参数的关系进行了拟合，拟合精度很好。
The exponential functions were used to reflect the relationship among fatigue stress, number of stress cycles and environmental parameters. The fitting precision of the functions was relatively high.
应力越高，在可以预料的破坏之前循环次数就越少。
The higher the stress the fewer will be the cycles before failure can be expected.
当应力大于应力阈值时，氢化物应力再取向程度随着与应力、温度循环次数增加而增大。
When applied stress is higher than the threshold stress, the level of hydride reorientation increases with the increase of stress and the number of temperature cycling.
在低循环应力时，真空环境中的疲劳断裂次数可比室温大气环境中的高近4倍。
Under lower cyclic stresses, the fatigue cycles to failure in vacuum is increased approximately 4 times than in air.
在低循环应力时，真空环境中的疲劳断裂次数可比室温大气环境中的多2至3倍。
Under lower cyclic stresses, the fatigue cycles to failure in vacuum is increased 2 or 3 times.
此外，也给出了饱和砂土液化破坏时破坏面上循环剪应力与循环荷载次数间的一般关系。
In addition, the generalized relationships between cyclic shear stress on failure plane and the number of cyclic loading causing liquefaction of the sandy soils are also presented.
随着冷热循环温度区间温差的增大、冷端温度的降低、循环次数的增多，形成的热应力对材料的界面损伤越严重；
The interfacial failure due to thermal stress will increase with increasing the range of temperature and the number of cycles.
随着应力增大和温度循环次数增加，氢化物再取向程度也增大，但是氢化物发生再取向存在应力阈值。
When hydride reorientation takes place, there is a threshold stress concerned with the number of temperature cycling.
在上海地区典型饱和软粘土不排水循环三轴试验的基础上，分析了影响软粘土塑性累积变形的主要因素：循环荷载的作用次数，初始静偏应力和循环加载动偏应力。
It was shown that the cumulative plastic strain depended not only on the applied cyclic stress and number of cycles, but also on the initial static deviatoric stress level.
在此基础上，分析了双轴拉-压极限强度随冻融循环次数的变化规律，并在主应力空间和八面体应力空间建立了同时考虑冻融循环次数和拉压比的破坏准则。
On this basis, the failure criterion of concrete simultaneously considering the freeze-thaw cycle and tension-compression ratio in principle stress space and octahedral space is established.
能量吸收与释放分界点对应的轴向有效应力随着循环次数的增大而增大。
Axial effective stress of demarcation points of energy absorption and release increases with the increase number of cycles.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
研究表明，随拉压循环次数的增加，应力向钢筋集中，钢筋承受的拉力随之增大，抗拔力大部分由底部的锚固头提供。
The study shows that the stresses are concentrated in the reinforcing steel bar and increase with the number of cycle. The bolted body of bottom mainly provides anti-pull bearing capacity.
结果显示，循环载荷试验加载水平与循环次数的增加会造成残余应力的进一步累积。
The results show that the residual stress of pile is further accumulated in the cyclic loading tests as the number of loading cycles and the level of cyclic loading increase.
动强度曲线显示循环应力比与循环剪切破坏次数的对数基本呈直线关系。
The dynamic strength curve indicates that there is basically a linear relationship between the cyclic stress ratio and the logarithm of the cyclic number required at failure.
动强度曲线显示循环应力比与循环剪切破坏次数的对数基本呈直线关系。
The dynamic strength curve indicates that there is basically a linear relationship between the cyclic stress ratio and the logarithm of the cyclic number required at failure.
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