Dataset: Mixed-mode fracture of porous, bonded snow

Experimental dataset for: Mixed-mode fracture of porous, bonded snow This dataset contains the experimental results from mixed-mode fracture experiments on pre-notched snow beams, conducted at the WSL Institute for Snow and Avalanche Research SLF in Davos, Switzerland. Test configurations: ON4PB (Offset Notch Four-Point Bend) VS3PB (Variable Support Three-Point Bend) Files: ON4PB_raw.parquet — Master data for all ON4PB experiments (one row per test, identified by AFN) ON4PB_raw_info.parquet — Column metadata: abbreviation, units, data type, long name, description VS3PB_raw.parquet — Master data for all VS3PB experiments VS3PB_raw_info.parquet — Column metadata Each data file contains experimental metadata, sample geometry, snow density, load cell recordings, crack path coordinates, stress intensity factors (K₁, K₂), T-stress, energy release rates, and optimized Young's modulus from finite element model updating (FEMU). The companion *_info.parquet files document every column with its physical unit and description. The data can be loaded with Python using pandas.read_parquet(). A minimal example notebook (NotchedBeam_Data_Example.ipynb) is provided in the accompanying code repository on GitHub Contact: [e-mail]用于：多孔粘结雪的混合型断裂实验数据集 本数据集汇集了瑞士达沃斯世界雪地与雪崩研究研究所（WSL Institute for Snow and Avalanche Research SLF）开展的带预制缺口雪梁混合型断裂实验结果。 测试构型包含两类： 1. 偏置缺口四点弯曲（Offset Notch Four-Point Bend，ON4PB） 2. 变支座三点弯曲（Variable Support Three-Point Bend，VS3PB） 数据集文件详情如下： - `ON4PB_raw.parquet`：所有ON4PB实验的主数据集，每一行对应一次测试，以AFN作为唯一标识 - `ON4PB_raw_info.parquet`：列元数据文件，包含各字段的缩写、单位、数据类型、全称及说明 - `VS3PB_raw.parquet`：所有VS3PB实验的主数据集 - `VS3PB_raw_info.parquet`：VS3PB实验的列元数据文件 每份数据文件均涵盖实验元数据、试样几何参数、雪密度、测力传感器记录数据、裂纹路径坐标、应力强度因子（K₁、K₂）、T应力、能量释放率，以及通过有限元模型更新（Finite Element Model Updating, FEMU）得到的优化杨氏模量。配套的`*_info.parquet`文件将对每个字段的物理单位与含义进行详细说明。 该数据集可通过Python的`pandas.read_parquet()`函数加载。GitHub配套代码仓库中附带了极简示例笔记本`NotchedBeam_Data_Example.ipynb`。 联系方式：[e-mail]