在PLAXIS中耦合高周积框架的实用砂土本构模型的实现

IF 1.9 Q2 MULTIDISCIPLINARY SCIENCES MethodsX Pub Date : 2025-06-01 Epub Date: 2025-01-25 DOI:10.1016/j.mex.2025.103183

Pishun Tantivangphaisal , David M.G. Taborda , Stavroula Kontoe

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引用次数: 0

摘要

提出了对高周积（HCA）框架的改进，结合砂的实用本构模型及其在PLAXIS中作为用户自定义土壤模型的数值实现。将实现的模型与卡尔斯鲁厄细砂的原始高循环试验数据和最近在敦刻尔克砂的实验室试验数据进行了比较。在三种不同荷载水平的工程设计场景中，以15 MW海上风电机组单桩基础为参考，验证了当前的数值实现。细节包括：•修改HCA框架，将其与实际的砂本质模型耦合，•在PLAXIS中实现高效的工作流程，在低周期和高周期本质方程之间切换，以及•验证在单元素和边值问题尺度上的实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Implementation of a practical sand constitutive model coupled with the high cycle accumulation framework in PLAXIS

A modification of the high-cycle accumulation (HCA) framework coupled with a practical constitutive model for sands and its numerical implementation as a user-defined soil model in PLAXIS is presented. The implemented model is compared against data from the original high-cyclic tests in Karlsruhe fine sand and more recent laboratory tests in Dunkirk sand. A reference 15 MW offshore wind turbine monopile foundation subject to lateral cyclic wave loading is used in an engineering design scenario at three different load levels to verify the current numerical implementation.

Details include:

•
Modifications made to the HCA framework to couple it with a practical sand constitutive model,
•
Implementation of an efficient workflow to switch between low and high cycle constitutive equations in PLAXIS, and
•
Verification of the implementation at single element and boundary value problem scales.

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