Rules for structures subjected to fatigue loading are given in 6.8.
规范第6.8条给出了受疲劳载荷结构。
During fatigue loading stable crack growth was observed over the en-tire range of crack lengths investigated.
在疲劳加载中，裂纹扩展始终是稳定的。
A numerical simulation of stochastic damage evolution process in the condition of1ow cycle fatigue loading is discussed.
讨论一种低周疲劳下随机损伤演变过程的数值模拟方法。
It is proved by calculation that the model can describe well the performance of concrete under uniaxial and multiaxial monotonic loading and fatigue loading.
计算结果表明，该模型能较好地描述混凝土在单轴及多轴单调加载和疲劳加载下的性质。
The damage variable is defined as the residual strain of concrete under constant amplitude fatigue loading, and the law of cumulative damage and its evolution are obtained.
由等幅疲劳残余应变，定义了损伤变量，得到了相应的损伤积累和演化规律。
If the failure is defined as the final fracture of a component, then both S-N curves and crack growth rate curves reflect the fundamental material behavior under fatigue loading.
如果都把一个构件的最终断裂作为疲劳破坏的定义，则S - N曲线和裂纹扩展率曲线均是反映金属在疲劳载荷作用下的基本材料特性。
Results. The strain compliance of cortical shell is generally not statistically significantly affected by the fatigue loading, cement augmentation and vertebral level (All P > 0.05).
结果：皮质层的张力顺应性在疲劳预载和骨水泥充填，椎体水平上无统计学差别（所有的P和gt，0.05）。
Test results demonstrated that digital image correlation method was effective, which could precisely measure the displacement and strain distribution in concrete under fatigue loading.
试验结果表明，数字图像相关方法具有可行性，能够有效地测量混凝土在疲劳荷载作用下的位移和应变。
Two dimensional fatigue loading under various working conditions is synthesized with weight coefficient method to obtain joint probability density function under multiple working conditions.
对各工况下的二维疲劳载荷，采用权系数的方法，合成并获得了多工况下的二维载荷联合概率密度函数。
This paper bases on a part of the project of National Natural Science Foundation "Failure criterion of concrete under multiaxial variable-amplitude fatigue loading" (50078010) for study contents.
本文是基于国家自然科学基金项目《混凝土多轴变幅疲劳破坏准则》(50078010)中的一部分作为研究内容。
The cumulative plastic strain energy increases with the increase of the loading frequency and stress level, which is linear with fatigue life on semilog coordinate.
累积塑性应变能随着加载频率及应力水平的增加而增加，与疲劳寿命在半对数坐标下呈线性关系。
Corrosion pitting also can lead to fatigue crack initiation depending on the component, the location of pitting, and cyclic loading conditions.
腐蚀斑点还会因不同的部件、斑点的位置和循环载荷状况，导致一些不同的疲劳裂纹。
A method is outlined for making low cycle fatigue life prediction for engineering components subject to multiaxial loading.
介绍了一种预测受多轴交变载荷工程构件的低周疲劳寿命的方法。
The fatigue life of cement-sodium-silicate-grouted soil is considerably affected by loading amplitude and frequency, but the effect of former is stronger than that of latter.
荷载振幅与荷载频率直接影响着水泥加固土的疲劳寿命，但荷载振幅比荷载频率对疲劳寿命的影响大得多。
The shortness of creep loading time and the faster frequency of fatigue load change induce general elastic strain stage to end and delayed elastic strain platform stage to begin under shorter strain.
因蠕变加载作用时间缩短和疲劳载荷变化更频繁，导致在较小的应变下结束普弹应变阶段并进入延迟弹性变形的平台应变阶段。
Fatigue damage is the main destroy mode for the machinery parts and engineering structures under alternate loading over a long period of time.
对于那些长期经受交变载荷作用的机械零件和工程构件，疲劳破坏是一种主要的破坏模式。
AIM: To observe the improved effect of sport functional parameter and fatigue index in judo athletes after training with athletic nutrition and loading adjustment.
目的：观察运动营养和负荷调整两种方法对柔道运动员训练后运动功能指标和疲劳指标的改善效果。
On constant frequency ratio, loading ratio has an importance influence on the initiation and propagation of fatigue crack under double frequency complex loading.
在频率比确定的条件下，载荷比是影响双频疲劳裂纹萌生及扩展的一个重要因素。
The test results show that the predicting fatigue life under variable amplitude loading follow the log normal distribution and agree well with simulation test results.
结果表明，变幅载荷下疲劳寿命的预测结果和模拟结果均服从对数正态分布，且两者符合很好。
It is proposed that mean stress effect should be divided into two aspects, i. e. static effect and dynamic effect for fatigue under complex loading.
对于复杂载荷下的疲劳问题，应该把平均应力效应分为“静态效应”和“动态效应”两个方面。
The fatigue of steel columns indirectly subjected to crane loading is generally not taken into account. But fatigue failure occurred at the column cap in some workshops.
间接承受吊车荷载的厂房钢柱，一般不考虑疲劳问题，但是在一些车间的钢柱上却出现了疲劳破坏。
The effects of repeated loading on the fatigue shear strength of partially prestressed concrete beams are studied.
本文探讨重复荷载对部分预应力混凝土梁疲劳抗剪强度的影响。
A sort of efficient calculation method was developed for fatigue life prediction under random loading.
研究了一种用于随机载荷下试件疲劳寿命预估的有效计算方法。
According to principle of damage mechanics, the evolutional law of damage in pearlite ductile cast iron has been studied under fatigue and tension loading.
利用损伤力学原理，研究了珠光体球墨铸铁在疲劳和拉伸载荷作用下的损伤演变规律。
By strengthening under low amplitude loading, bend fatigue strength and life of gear teeth can be increased by 3.97 and 109 percents, respectively.
经过低幅载荷强化，该齿轮轮齿的弯曲疲劳强度提高了3.97%，弯曲疲劳寿命提高了109%。
According to the correlation between accumulative damage and loading level the fatigue damage model is established.
依据损伤演变与损伤状态、加载条件间的相关性，建立了相应的疲劳损伤模型。
According to the correlation between accumulative damage and loading levels, the fatigue damage model is established.
依据损伤演变与损伤状态、加载条件间的相关性，建立了相应的疲劳损伤模型。
According to the loading cycles, the fatigue damage represented bend in loading area, worm - eaten abrasion or exfoliation around loading area and sequent massive exfoliation.
疲劳损伤随加载周期依次表现为加载区的屈服、加载区外围即滑移区的虫蚀状磨损和片状剥落，以及随后出现大块脱落。
Fatigue crack propagation behaviour under variable amplitude loading is significantly influenced by load history induced sequence effects.
导致加载序列作用的加载历史极大地影响着变幅加载下的疲劳裂纹扩展行为。
Study of fatigue crack growth rate and fatigue life calculation under random loading is very important for the reliable life prediction of engineering structures.
变化载荷作用下裂纹扩展律和疲劳寿命的计算对工程结构的寿命的可靠预测是十分重要的。
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