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;剪切蠕变曲线形状和蠕变寿命与温度及应力大小有关。
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、蠕变以及应力松弛都是砂土材料本身黏性的反映,而与超孔隙水压力的消散无关。
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.
比较了恒位移法、恒载荷法和慢应变速率法研究应力腐蚀时的优缺点。
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的生成方法,分析了边界应力、初始构型、加载速率、粒子间的摩擦系数等对颗粒系统目标构型的影响。
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.
在相同位移速率和相同载荷水平条件下,同一次循环时岩石变形曲线的加载段与卸载段的相应拟合参数值不同。
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,在相同加载条件下预存微破裂密度越高,或对同一岩石加载速度越慢,对应的断层成核过程就越长,因此最终破坏的可预报性也越高。
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对氢致表观屈服强度下降的影响。
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率逐步变化加载过程,同时也实现了蠕变加载和应力松弛过程。
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 )在初始加载过程中,经过一定时间蠕变后黏土的强度有很大的提高;
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,研究了幅值比,平均应力,应力幅,加载率对棘轮应变以及棘轮应变幅的影响。
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.
将在交替变换荷载速率试验中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,可以与高荷载速率对应的应力–应变曲线重合。
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,通过以下方式获得的应力-应变曲线的加载速率依赖性也只是一个小的试样的加载速率交替地切换测试期间。
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,与现有的砂土本构模型相比,所提出的模型能更好地模拟应力路径及加载速率变化对砂土变形和强度特征的影响。
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,对三城目安山岩和稻田花岗岩在恒定速率下进行循环加载卸载试验,得到了应力—应变曲线上很多点处的卸载曲线。
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等应变率加载情况下的软土应力—应变关系。关系式显示应力—应变之间呈乘幂函数关系。
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等应变率加载情况下的软土应力—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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