creep upon
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In the long time creep tests, by regressive analyses, the creep curve of glauberite at different stress level is obtained: at 50% of its compressive strength, the creep curve is ε 0.009t0.3265, at 80% of compressive strength, the creep curve is ε=0.0098ln-0.0014. It is clear from the creep curves of the rock mass, that the creep rate at high stress level is higher than that at the lower stress level.
通过长时间的蠕变实验,回归出钙芒硝盐岩蠕变在不同应力水平下随时间变化的曲线,其抗压强度50%时的曲线方程为ε=0.0098ln-0.0014,抗压强度80%时的蠕变曲线方程为ε=0.012ln-0.0056,应力水平高时其蠕变速率高于低应力水平的蠕变速率。
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Methods Through the triaxial creep test, the triaxial creep curves and isochorounous stress-strain curves have been obtained, then the creep characteristics of mica-quartzose schist have been obtained by analyzing the triaxial creep curves, and the isochrounous stress-strain characteristics of mica-quartzose schist have been obtained by analyzing the isochorounous stress-strain curves. Finally, an empirical formula of creep curve is obtained by data fitting and the analysis of the relation between time and parameter of fitting formula.
通过三轴蠕变试验首先得到了云母石英片岩的蠕变曲线和应力应变等时曲线,然后对试验曲线进行分析得到云母石英片岩的蠕变特性和云母石英片岩的等时应力应变特性,最后拟合应力应变等时曲线,并分析时间和拟合公式中参数的关系,得出了蠕变经验公式。
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Fatigue-creep rupture experiments of Nimonic 80A uniaxial specimen and hollow bolts at 550°C were carried out. Fatigue-creep process was simulated by ABAQUS using Chaboche-Nouaihas fatigue creep model. It is indicated that fatigue-creep rupture of hollow bolt is different from simple creep rupture.
该文对镍基合金Nimonic 80A进行了550℃下单轴及空心螺栓的疲劳-蠕变断裂实验,应用Chaboche-Nouaihas模型,用有限元软件ABAQUS模拟了空心螺栓的疲劳-蠕变过程。
- 更多网络解释 与creep upon相关的网络解释 [注:此内容来源于网络,仅供参考]
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creep strength:蠕需变强度
creep rate 蠕变率 | creep strength 蠕需变强度 | creep test 蠕变试验
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creep strength:抗蠕变强度
creep strain 蠕变应变 | creep strength 抗蠕变强度 | creep test 蠕变试验
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creep limit:蠕动极限
creep law 蠕变定律 | creep limit 蠕动极限 | creep of rock 岩石蠕变