DATASET - Evaluation of post-storm soil stiffness degradation effects on the performance of monopile-supported offshore wind turbines in clay

Supplementary Data for the article titled: "Evaluation of post-storm soil stiffness degradation effects on the performance of monopile-supported offshore wind turbines in clay". The post-storm shear strain-G/Gmax pairs at every 6.6 meters along each pile (according to altering red highlights in Fig. 9 a) are available for all 108 monopile-soil combinations simulated for this study. Researchers interested in optimizing their long-term or post-storm p-y curves for 3.6-5MW OWTs in normally consolidated clays may refer to the tabulated values in this database. The value pairs are calculated as follows: the maximum strain in every element in a representative volume (viz. red zone in Fig. 9 a) is fetched and averaged. The G/Gmax value corresponding to each averaged maximum strain is interpolated from the appropriate stiffness degradation curve in Fig. 2. The first Sheet of the excel file contains shear strain data for each of the 108 models. Strains are given for each representative volume (6.6m * 1D hollow-half-cylinder, viz. Fig. 9a) and each wind cycle (N=1..2). The second sheet contains the G/Gmax values corresponding to the shear strain values tabulated in the first sheet. Data headers are self explanatory in the excel file.本补充数据对应论文《风暴后土体刚度退化对黏土中单桩支撑海上风力发电机组性能的影响评估》。 本研究针对108种单桩-土体组合工况开展数值模拟，所有工况均提供沿单桩每6.6米间距采集的风暴后剪切应变-G/Gmax配对数据（对应图9a中的红色高亮区域）。研究人员若需针对正常固结黏土中3.6~5MW级海上风力发电机组优化其长期或风暴后p-y曲线（p-y curves），可参考本数据库中的制表数据。 该配对数据的计算方法如下：提取代表性单元体内所有单元的最大剪切应变并取平均值，再根据图2中的对应刚度退化曲线插值得到与该平均最大剪切应变对应的G/Gmax值。 Excel文件的第一个工作表包含108个模型各自的剪切应变数据，数据涵盖每个代表性单元体（尺寸为6.6m×1倍桩径的空心半圆柱，对应图9a）以及每个风荷载循环（N=1~2）下的应变值。第二个工作表包含与第一张工作表中制表的剪切应变值对应的G/Gmax数值。Excel文件中的数据表头含义清晰易懂。