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Correlations between the stress paths of a monotonic test and a cyclic test under the same initial conditions

机译：相同初始条件下单调测试和循环测试的应力路径之间的相关性

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摘要

In most experimental studies on liquefaction, cyclic loadings are applied on specimens with various initial conditions. However, few studies compared cyclic test results with monotonic results under the same initial conditions. The relation between monotonic tests and cyclic tests is crucial for understanding liquefaction mechanics and liquefaction resistance. This work compares the stress paths of a monotonic test with those of a cyclic test under the same initial conditions, and concluded that the stress path of monotonic tests envelops the stress path of cyclic tests under the same initial conditions. In addition, a new parameter, Level of Liquefaction Index (LI) is proposed to evaluate the liquefaction resistance of specimens under various initial conditions, and a linear relationship between LI and number of cycles at failure is found.
机译：在大多数液化实验研究中，循环载荷施加于具有各种初始条件的样品上。但是，很少有研究将循环测试结果与相同初始条件下的单调结果进行比较。单调试验和循环试验之间的关系对于理解液化力学和抗液化性至关重要。这项工作将相同初始条件下的单调测试的应力路径与循环测试的应力路径进行了比较，得出的结论是，在相同初始条件下，单调测试的应力路径包围了循环测试的应力路径。此外，提出了一个新的参数，液化指数水平（LI），以评估样品在各种初始条件下的抗液化性，并且发现了LI与破坏循环次数之间的线性关系。

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  • 来源
    《Soil Dynamics and Earthquake Engineering》 |2017年第10期|153-156|共4页
  • 作者

    Li Yao; Yang Yunming; Yu Hai-Sui; Roberts Gethin;

  • 作者单位

    Changan Univ Sch Highway Middle Sect Nan Er Huan Rd Xian Shaanxi Peoples R China|Univ Nottingham Ningbo China Int Doctoral Innovat Ctr 199 Taikang East Rd Ningbo Zhejiang Peoples R China;

    Univ Nottingham Ningbo China Int Doctoral Innovat Ctr 199 Taikang East Rd Ningbo Zhejiang Peoples R China|Univ Nottingham Ningbo China Dept Civil Engn 199 Taikang East Rd Ningbo Zhejiang Peoples R China;

    Univ Leeds Fac Engn Leeds W Yorkshire England;

    Univ Nottingham Ningbo China Dept Civil Engn 199 Taikang East Rd Ningbo Zhejiang Peoples R China;

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