Numerical Simulations of Selected LEAP Centrifuge Experiments with PM4Sand in FLAC
Numerical Simulations of Selected LEAP Centrifuge Experiments with PM4Sand in FLAC
复制标题
在 FLAC 中使用 PM4Sand 进行选定 LEAP 离心机实验的数值模拟
DOI：
10.1007/978-3-030-22818-7_24
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
K. Ziotopoulou
中科院分区：
文献类型：
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作者：
J. Montgomery;K. Ziotopoulou
增加的信心，在估计的变形引起的变形从数值模型，需要仔细验证本构模型和数值模拟方法。在进行验证时，应适当考虑模拟结果的预期用途以及将数值模拟与实验室或物理模型进行比较时固有的不确定性。本文介绍了一组校准的数值模拟结果的离心实验与淹没，可压缩的斜坡的比较。这些模拟是作为2017年LEAP模拟演习的一部分，使用本构模型PM4Sand和数值平台FLAC进行的。将模拟结果与离心机的模拟结果进行比较，以确定模拟能够充分捕获实验响应的哪些方面。本文介绍了模拟方法，包括本构模型和数值平台。本文介绍了用室内实验结果标定PM_4砂的过程。其次是系统级仿真的描述和仿真结果与实验结果的比较。进行了敏感性研究，以检查模拟响应的趋势，并讨论了这项研究的结果。
Increasing the confidence in estimates of liquefaction-induced deformations from numerical models requires careful validation of both constitutive models and numerical simulation approaches. This validation should be performed with proper consideration of the intended use of the simulation results and the uncertainty inherent in comparing numerical simulations to laboratory or physical models. This paper describes the comparison of a set of calibrated numerical simulations to the results of centrifuge experiments with a submerged, liquefiable slope. These simulations were performed as part of the 2017 LEAP simulation exercise using the constitutive model PM4Sand and the numerical platform FLAC. The simulation results were compared to those from the centrifuge to identify which aspects of the experimental response the simulations were adequately able to capture. This paper provides a description of the simulation approach including the constitutive model and numerical platform. The process of calibrating PM4Sand to the results of laboratory experiments is described. This is followed by a description of the system-level simulations and a comparison of the simulation results with the experimental results. A sensitivity study was performed to examine trends in the simulation response and a discussion of the findings from this study is presented.
DOI：
10.1007/978-3-030-22818-7_3
发表时间：
2019-11
期刊：
Model Tests and Numerical Simulations of Liquefaction and Lateral Spreading
影响因子：
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作者：
Mohamed El Ghoraiby;Hanna Park;M. Manzari
通讯作者：
Mohamed El Ghoraiby;Hanna Park;M. Manzari