• Above approximately 0.1% strain amplitude, the storage modulus decreases rapidly with increasing amplitude.

    大约0.1%以上应变振幅存储模量振幅的增加迅速减小。

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  • The damping capacity in cast condition is dependent on strain amplitude, and it increases with its enhancement.

    合金阻尼性能应变振幅有关,随着应变振幅的提高不断提高;

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  • The values of plastic strain energy density are affected by the plastic strain amplitude and change with the cycle numbers.

    合金塑性应变密度应变影响具有循环相关性

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  • The fatigue behavior of as-cast and as-extruded AZ91 magnesium alloys was investigated under total strain amplitude control mode.

    研究铸态挤压态az91镁合金室温应变疲劳行为

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  • The effects of cyclic strain amplitude history and mean strain on the cyclic deformation behavior of pure copper were investigated.

    揭示紫铜应变循环循环应变幅值历史平均应变循环特性影响

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  • The effects of the dwell time, strain rate, strain amplitude and their histories on the cyclic deformation behavior are investigated.

    研究具有不同保持时间、不同应变、不同应变幅值及其历史材料循环变形行为影响

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  • A new exponential dissipation model is presented to describe this bilinear material's plastic strain amplitude-fatigue life relation.

    利用本文建立的指数衰减模型能够较好地描述材料非线性塑性应变幅与寿命之间的关系。

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  • Peaking effects were found on the plot of internal friction vs strain amplitude or time when the resonant frequency of anomalous peak closed to the normal one.

    反常共振频率正常共振靠近时,在内耗-振幅内耗-时间呈现峰值效应

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  • The observed phenomenon that both 7000 series alloys tested soften cyclically at smaller plastic strain amplitude and harden at larger plastic strain amplitude is explained.

    阐述了观察到两种7000系列合金塑性应变下循环软化塑性应变幅下循环硬化的现象

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  • Based on above fitted relation and equivalent viscous damping theory, a nonlinear constitutive equation of damping alloy depending on strain amplitude and frequency is put forward.

    所得变化规律等效粘性阻尼理论结合,给出了一种依赖应变频率非线性阻尼本构关系式。

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  • The experiment results show that the damping capacity of deformed Martensite first decreases sharply and then keep constant with the increase of frequency at the low strain amplitude;

    结果表明,当应变振幅较低时,形变马氏阻尼频率增加急剧下降至一定趋于稳定;

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  • In this model, a new kinematic hardening equation was used; the non-proportionality, the effect of temperature and memorization for the maximum plastic strain amplitude were also considered.

    模型给出了一个新的背应力演化方程,引入非比例度参量,并且考虑最大塑性应变记忆效应温度效应影响。

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  • The effect is observed under cyclic loading conditions with small strain amplitudes, and is manifest as a dependence of the viscoelastic storage modulus on the amplitude of the applied strain.

    效果观察应变振幅,在循环加载条件下表现粘弹性储能模量依赖应用应变的振幅

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  • The normalized form of shear modulus vs. strain amplitude will be shown by a single curve, and that of damping ratio vs. strain amplitude by a family of curves or a band zone with shrunk ends.

    化后,前者平面表示单一一根曲线,后者则表现为一簇曲线或两端是灭、。

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  • The effects of anisotropy, strain rate sensitivity, imperfection and its amplitude and inertia on plastic instability are discussed.

    讨论了材料向异性、应变敏感性不均匀性及其幅度惯性等因素塑性失稳影响

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  • The amplitude of the loss peak decreases linearly with axial strain, whereas, it is hardly affected by temperature change.

    谐振波长温度应变线性变化,透射值随轴向应变线性减小对温度不敏感。

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  • With the increase of the grain size of H68 brass, the critical plastic strain for the onset of serrations increases while the maximum stress amplitude of serrations decreases.

    对于H68黄铜,随着晶粒尺寸增大出现锯齿屈服临界应变量增大,锯齿波的最大应力振幅减小

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  • 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.

    由等疲劳残余应变定义损伤变量得到了相应损伤积累演化规律

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  • Measuring the dynamic strain involves the constant modification of gain, as determined by the signal amplitude. This practice suffers from the complex test and the low accuracy.

    动态应变信号测试,经常需要根据信号的幅值不断调整放大器的放大倍数,测量电路复杂精度

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  • Through the stress-controlled test the effect of the amplitude ratio, the average stress, stress amplitude and loading rate on the ratcheting strain and strain range are studied.

    通过应力控制,研究平均应力,应力幅,加载棘轮应变以及棘轮应变幅的影响

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  • By means of the experimental data from dynamic triaxial stress-strain test of variable cyclic amplitude for frozen soil, the formative conditions of residual strain on frozen silt clay are studied.

    基于不等幅值循环荷载作用下低温三振动试验资料研究了冻结粘土分级往返加荷情况残余应变产生条件。

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  • In this paper, the stress-strain analysis and life prediction for the notched shafts were studied under multiaxial constant amplitude proportional loading.

    本文针对多轴比例恒幅加载情况缺口件进行应力应变分析寿命预测研究。

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  • The damping capacity at room temperature is highly sensitive to strain-amplitude and frequency, as well as the static load.

    合金室温阻尼性能强烈地依赖频率、应变振幅以及载荷的大小。

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  • Variable-amplitude fatigue tests for concrete in tension under single and bi-lateral pressures are conducted. Consequently, the fatigue life and residual strain are obtained.

    本文进行混凝土分别双向侧压作用变幅疲劳试验,得到疲劳寿命残余应变

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  • The behavior of internal friction during strain ageing and amplitude-dependent effect behaved in high purity aluminium were studied.

    本文高纯应变时效内耗行为以及表现出的振幅效应进行研究。

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  • The behavior of internal friction during strain ageing and amplitude-dependent effect behaved in high purity aluminium were studied.

    本文高纯应变时效内耗行为以及表现出的振幅效应进行研究。

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