• Shortterm shear behaviors depend on loading rate and test temperature while the shapes of the shear creep curve and the creep lives depend on test temperature and stress.

    瞬时剪切行为存在加载速率温度相关性;剪切曲线形状蠕变寿命与温度应力大小有关。

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  • Loading rate effect, creep and stress relaxation should be attributed to the viscous properties of the sand specimens, but not to the delayed dissipation of excess pore water pressure.

    加载速率效应蠕变以及应力松弛是砂土材料本身黏性反映,孔隙压力的消散无关

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  • This paper has compared the advantage and disadvantage of the constant displacement method, constant loading method and slow strain rate method on researching the stress corrosion.

    比较位移、恒载荷应变速率研究应力腐蚀优缺点

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  • The influences of boundary stress, initial configuration, loading rate and friction coefficient between particles on the state and configuration of dense granular system are also examined.

    同时,给出了不同条件下密集颗粒样本生成方法,分析边界应力初始构型加载速率、粒子摩擦系数等对颗粒系统目标构型影响

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  • The imitational parameters are different for loading section and unloading section of the fine-sandstone deformation curve at the same circulate curve under the same deformation-rate and stress-level.

    相同位移速率相同载荷水平条件同一次循环时岩石变形曲线加载卸载段的相应参数不同

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  • In general, a higher pre existing microcrack density or a lower loading stress rate results in a longer nucleation stage, and therefore, increases the predictability of catastrophic failure event.

    一般而言,在相同加载条件下存微破裂密度对同一岩石加载速度越慢,对应的断层成过程就越因此最终破坏可预报性也越高。

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  • The effect of loading rate, test temperature and pre-plastic deformation on hydrogen induced apparent yield stress reduction have been investigated.

    研究了变形速度试验温度以及预先塑性变形程度表观屈服强度下降影响

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  • The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.

    试验不仅实现了应变逐步变化加载过程,同时也实现蠕变加载应力松弛过程。

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  • Test results show that : ( 1 ) the amount of creep deformation during monotonic primary loading depends on strain rate before creep, creep stress level, and creep time ;

    试验结果表明: (1初始加载过程中,经过一定时间变后黏土强度有很大的提高;

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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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  • Stress-strain curve at slow loading-rate obtained in alternating loading rate test is shifted along the unloading curves, and then it overlapped on stress-strain curve at a fast loading rate.

    交替变换荷载速率试验得到的对应于低荷载速率的应力–应变曲线沿着卸载曲线平移,可以高荷载速率对应的应力–应变曲线重合

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  • Furthermore, the loading rate dependency of a stress-strain curve was also obtained by just one small specimen with the loading rate alternately switching during a test.

    此外通过以下方式获得应力-应变曲线加载速率依赖性只是一个试样的加载速率交替地切换测试期间

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  • It is shown that the proposed model can much better simulate the effects of stress path and loading rate on the deformation and strength characteristics of sandy soil than the previous models.

    研究结果表明,现有砂土本构模型相比,所提出模型更好模拟应力路径及加载速率变化砂土变形强度特征影响

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  • Next, unloading-reloading cycles are repeated in constant loading rate test with Sanjome andesite and Inada granite; and unloading curves at many points along stress-strain curve are obtained.

    其次,对三城目安山岩稻田花岗岩恒定速率下进行循环加载卸载试验,得到了应力—应变曲线很多的卸载曲线

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  • On the basis of the fractional calculus operator theory, the stress-strain relation of soft soil under the condition of loading with constant strain rate is proposed.

    利用分数阶微积分理论提出应变加载情况应力—应变关系。关系式显示应力—应变之间呈乘幂函数关系。

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  • On the basis of the fractional calculus operator theory, the stress-strain relation of soft soil under the condition of loading with constant strain rate is proposed.

    利用分数阶微积分理论提出应变加载情况应力—应变关系。关系式显示应力—应变之间呈乘幂函数关系。

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