Experimental Database of Dynamic Increase Factor for Mortar under High Strain-Rate Loading

This dataset contains experimentally collected data on the Dynamic Increase Factor (DIF) of mortar subjected to high strain-rate loading, obtained using the Split Hopkinson Pressure Bar (SHPB) technique. The database includes both compressive and tensile test results, reported as DIFc and DIFt, respectively. The dataset was compiled from 18 published studies and consists of 400 samples for compressive DIF (DIFc) and 224 samples for tensile DIF (DIFt). It is intended to support data-driven analysis, comparative assessment, and model development for the dynamic mechanical behavior of mortar materials under impact and high-rate loading conditions. The database is organized into two sheets: DIFc: compressive dynamic increase factor data DIFt: tensile dynamic increase factor data The input variables include: Water-to-cement ratio (W/C) Sand-to-cement ratio (S/C) Sand content (Sc) Curing days (Cd) Quasi-static compressive strength Quasi-static tensile strength Strain rate The output variables are: DIFc: dynamic increase factor in compression DIFt: dynamic increase factor in tension This dataset may be useful for researchers working in impact engineering, cement-based materials, structural engineering, and machine learning applications for material behavior prediction.本数据集包含通过分离式霍普金森压杆（Split Hopkinson Pressure Bar, SHPB）技术获取的、经受高应变率加载的砂浆材料动态增大因子（Dynamic Increase Factor, DIF）的实验采集数据。该数据库涵盖抗压与抗拉两类试验结果，分别记为DIFc与DIFt。 本数据集整合自18项已发表研究，其中抗压动态增大因子（DIFc）样本共400组，抗拉动态增大因子（DIFt）样本共224组。本数据集旨在支撑冲击及高应变率加载条件下砂浆材料动态力学行为的数据驱动分析、对比评估与模型开发工作。 该数据库分为两个工作表： DIFc：抗压动态增大因子数据集 DIFt：抗拉动态增大因子数据集 输入变量包括： 水胶比（Water-to-cement ratio, W/C） 砂胶比（Sand-to-cement ratio, S/C） 砂含量（Sand content, Sc） 养护龄期（Curing days, Cd） 准静态抗压强度 准静态抗拉强度 应变率 输出变量为： DIFc：抗压动态增大因子 DIFt：抗拉动态增大因子 本数据集可服务于冲击工程、水泥基材料、结构工程以及材料行为预测机器学习应用领域的研究人员。