The advantages and disadvantages of the fatigue damage cumulative rules are discussed.
比较各种疲劳损伤累积理论计算方法的优缺点。
Then, constitutive equations are written for plastic, creep and fatigue damage phenomena.
从而建立了塑性、蠕变和疲劳损伤现象的本构方程。
In this paper, the fatigue damage mechanisms of concrete under repealed loads are studied.
本文研究了水泥混凝土在重复荷载作用下的疲劳损伤机理。
The fatigue damage cumulative rule plays a key role on the structure design against fatigue.
疲劳累积损伤分布规律是结构疲劳可靠性分析与设计的关键内容之一。
The fatigue damage analysis method which is based on fatigue life model is briefly introduced.
并简要介绍了按疲劳寿命模型分析疲劳可靠性的方法。
The formula of the fatigue crack propagation rate was directly derived from the fatigue damage criterion.
通过疲劳损伤准则，导出疲劳裂纹稳定扩展速率的计算公式。
Optimization design method of welded structure was put forward with welded joint fatigue damage as constraints.
提出考虑焊接接头疲劳损伤约束的焊接结构抗疲劳优化设计方法。
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。
Therefore the device is suitable for bone fatigue damage test and for establishment of the model of bone microdamage.
实验证明该机适合于骨组织疲劳损伤实验，用于建立骨微损伤模型。
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。
The practically used method of how to evaluate the accumulated fatigue damage and residue fatigue life is introduced.
提出了疲劳累积损伤度和剩余疲劳寿命的实用计算方法。
The mechanism of Fe-based alloy coating for thermal fatigue damage resistance of wheel cast steel was analyzed by SEM.
用扫描电镜分析研究了铁基合金涂层对车轮铸钢材料抗热疲劳损伤机制的影响。
Fatigue damage once invalidated railway bridge, fatigue crack ever resulted in collapse of artesian well desk in ocean.
疲劳损伤曾使铁路桥梁失效，疲劳裂缝的存在使海洋钻井台倒塌倾覆，酿成悲剧。
Load capacity contained by calculating safety factor that resistant to fatigue damage caused by the maximum load force.
负载能力通过计算抵抗最大负载力造成的疲劳毁损的安全系数得出。
According to optimal curve to start-up, boiler drum not only reduces fatigue damage, but also cut down the start-up time.
按优化曲线启动，不仅保证汽包寿命损耗小，而且能大量缩短锅炉启动时间。
CONCLUSION: tendon can adapt to the exercise training, and there is fatigue damage in tendon during this adaptation process.
结论：肌腱对运动训练可发生适应性改建，在此过程中伴随着疲劳性损伤发生。
Through test analysis of the specimen (B-car), the fatigue damage theory is proven to be useful in the vehicle durability test.
通过对样车(B车)的试验分析，证明疲劳损伤理论在耐久试验中应用是非常有效。
The residual strength of the aluminum alloy fuselage panels with widespread fatigue damage (WFD) is investigated experimentally.
进行了广布疲劳损伤（WFD）铝合金机身壁板的剩余强度试验研究。
The photographs of the sweep electron microscope show that fatigue damage are caused mainly by microcracks and impurities of metal.
通过疲劳断口的电镜扫描试验，证明防爆膜的疲劳破坏是由存在于金属内部的微裂纹和杂质所引起。
The damage evolutionary path and the damage equation which depicts the fatigue damage accumulation are introduced also in this paper.
文中给出了损伤演变路径和描述该损伤演化行为的疲劳累积损伤方程。
By analysing individual parameter, the cause of fatigue damage of water tank was found out, the advice of improvement was put forward.
通过对各阶模态参数的分析，找出了水箱疲劳损坏的原因，并提出了进一步改进的意见。
But the common linear fatigue damage cumulative rule neglects the fatigue damage which is brought by the high frequency and low stress.
一般的线性损伤累积理论忽略了高频率低疲劳应力所引起的构件疲劳损伤，致使预测结果与实际寿命相差很大。
In this paper a new criterion for thermal fatigue damage was proposed to evaluate the thermal fatigue performances of metallic materials.
本文提出一种新的热疲劳损伤判据，用以评估金属材料的热疲劳性能。
This article describes the phenomenon, effect factors and distinguishable characteristics of fretting fatigue damage failure by real case.
介绍了微动疲劳损伤失效的现象，影响因素，鉴别特征，并举例说明。
Fatigue damage of ship and ocean engineering structures will caused by fluctuation loadings, such as wave loading, during their service time.
船舶与海洋结构物在其服役过程中受到波浪等载荷的交变作用而引起结构的疲劳损伤。
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。
The results show that multiaxial fatigue damage parameter presented in this paper may be used under either proportional or non proportional loading.
结果表明，本文所提出的多轴疲劳损伤参量既可用于多轴比例循环加载，也可用在非比例加载条件下。
Therefore, the distribution configuration of the fatigue damage threshold is the same as the distribution configuration of lineal cumulative damage.
因此，新定义的疲劳损伤阀值与线性累积损伤之间在分布形态上是一致的。
It is well suited for monitoring in line production in structural components for the aerospace about detection of damage and progressive fatigue damage.
从这个现象中获得的信息表明，它非常适宜应用到宇航结构件在生产线的无损检测和疲劳损伤预报。
It is well suited for monitoring in line production in structural components for the aerospace about detection of damage and progressive fatigue damage.
从这个现象中获得的信息表明，它非常适宜应用到宇航结构件在生产线的无损检测和疲劳损伤预报。
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