• The paper is dedicated to study the low-cycle fatigue behavior of a certain semi-rigid connection: the top- and -seat angle.

    本文尝试研究一种半刚性连接-顶底角钢连接的低周疲劳性能。

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  • Based on experimental data and finite element analysis results, a low-cycle fatigue life model is proposed for the powder metallurgy superalloys under multiaxial stress states.

    在详细分析试验和有限元计算结果的基础上,提出了复杂应力状态下的低周疲劳寿命模型。

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  • This paper presents a modification to the FMDF model for predicting high-temperature low-cycle fatigue life, which improves accuracy of the model and facilitates the application of it.

    本文对预测高温低周疲劳寿命的FMDF公式作了改进,结果明显提高了精度,使其方便实用。

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  • Simple tensile tests and low-cycle fatigue tests under stress control at different temperature were conducted to investigate the effects of temperature on fatigue behavior and fatigue strength.

    通过不同环境温度下的简单拉伸试验和应力控制下的低周疲劳试验,找出了环境温度对应力控制下的疲劳行为和疲劳强度的影响。

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  • “Low birth weight is associated with a bunch of poor outcomes throughout your life cycle, ” Torche said.

    “低出生体重与整个生命周期中的一系列负面影响有关,”托奇说。

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  • Low cycle multiaxial fatigue failure is the main failure mode of aeroengine compressor disk.

    低循环多轴疲劳失效是航空发动机低压压气机轮盘的主要失效形式。

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  • In addition the features of high temperature low cycle fatigue fracture surfaces are given.

    还介绍了发生过载损伤后高温低循环疲劳断口的特征。

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  • The synthesis of thermal, centrifugal and aerodynamic stresses may cause the low cycle fatigue failure of the blades.

    这种热应力与离心应力、气动应力合成的综合应力可能引起涡轮叶片的低循环疲劳失效。

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  • In addition, the FORTRAN calculation program of this method is compiled in this paper, by which the low cycle fatigue life of bellows expansion joints can be calculated accurately.

    本文同时编写了该方法的Fortran计算程序,利用该程序可以比较准确地计算出膨胀节的低循环疲劳寿命。

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  • The point of intersection of elastic line and plastic line moves toward the low cycle life with the hardness of the spring steel raised after tempering from the strain fatigue curve.

    在应变疲劳曲线上,弹性线和塑性线的交点随弹簧钢回火后硬度的升高而向低循环寿命移动;

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  • Puzzlingly, the last solar cycle, which ended recently, had an especially long and weak low point that scientists had difficulty explaining.

    然而令人们感到疑惑的是,最近结束的上一个太阳周期,太阳活动低潮期相对特别长,太阳活动极其微弱。

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  • In short, education is a powerful way to break the cycle of poverty, ill health, misery, and low status passed on from one generation of women to the next.

    简而言之,教育是打破贫穷、健康不良、苦难和地位低下循环的强有力方式,这种循环过去由妇女们代代相传。

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  • Experiment under low cycle loading is presented on the composite joint of cold formed & light guage steel shape and concrete.

    结合某试点工程的要求,进行了冷弯薄壁型钢与混凝土组合节点在低周循环荷载下的足尺模型拟静力试验研究。

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  • Second, how do you foresee at the beginning of the life cycle that the project currently with low risks will have excessive risks later on in the life cycle?

    第二,如何在生命周期初期预见目前低风险的项目将会在生命周期的后期具有过高的风险?

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  • They point out that defaults tend to occur at low points in the economic cycle, so that the years preceding a default tend to be ones of unusually poor growth by the defaulting country's standards.

    他们指出,通常在经济周期的最糟时刻才会出现违约,所以,按照违约国家的标准,违约前几年经济状况就已经欠佳了。

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  • That points to one problem with the exercise: a 4% minimum at the bottom of the cycle may be too low.

    这表明了一个实际问题:4%的最低标准可能太低。

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  • 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。

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  • High temperature low cycle fatigue (HLF) life prediction models have great significance for design of high temperature structure under cycLic loading.

    高温低周疲劳(HLF)寿命预测方法对于承受变幅载荷的高温构件的设计具有重要意义。

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  • The main destruction of constructions suffering from earthquake is brought by the accumulated damage of structures under low cycle fatigue.

    建筑结构在地震作用下的破坏主要是由结构的低周疲劳累积损伤引起的。

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  • The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.

    结果表明,扭转预应变降低低周疲劳寿命,循环应力随扭转预应变的增大而增大。

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  • The load displacement curve under static load, load displacement hysteric curve under repeated low cycle load and strain data at key points are presented.

    给出了静力荷载下的荷载变形曲线、低周反复荷载下的荷载变形滞回曲线以及关键部位的应变数据。

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  • To model the random cyclic strain life relations during low cycle fatigue, probability based cyclic strain life curves are suggested.

    引入了概率循环应变—寿命曲线描述低周疲劳循环应变—寿命试验数据的分散性。

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  • The ability of resistance to low cycle fatigue of PM FGH95 is much higher than that of GH169.

    粉末冶金FGH95构件的抗低周疲劳能力远高于锻造GH169,相差几个数量级。

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  • The paper also presents the low cycle fatigue life and creep life's quantificational method of steam turbine's main stop valve and control valve, and applied examples.

    提出了汽轮机主汽阀和调节阀阀壳低周疲劳寿命和蠕变寿命的定量设计方法,并给出了应用实例。

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  • Through analysis, the failure reason was confirmed as that the low cycle fatigue caused by plastic deformation occurred in the lead alloy, thus the fracture occurred.

    分析其失效原因为铅合金在外力作用下,产生塑性变形引起的低周疲劳,造成断裂。

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  • Systemic experimental research on 6 different composite connections between concrete filled steel tube columns and shear wall under low cycle reversed loading have been done.

    完成了6个由不同形式抗剪连接键连接的钢管混凝土边框与剪力墙组合节点在低周反复荷载下的抗震性能试验。

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  • The high strain low cycle fatigue properties of V ti micro alloyed high anti seismic structural steel were studied with simulated earthquake loading.

    对微钒钛高抗震性能建筑结构钢进行了模拟地震载荷高应变低周疲劳试验。

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  • Under seismic ground shaking, the ability of the connection to dissipate energy will depend on the connection's capability to withstand low cycle fatigue.

    在地震地面振动时,连接的耗能能力取决于抵抗低周疲劳的能力。

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  • Under seismic ground shaking, the ability of the connection to dissipate energy will depend on the connection's capability to withstand low cycle fatigue.

    在地震地面振动时,连接的耗能能力取决于抵抗低周疲劳的能力。

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