Dataset for 'Discrete Element Analysis of Diametrical Compression of Annular Agglomerates'

This dataset contains both numerical simulation data and experimental data describing on three-dimensional diametrical compression tests of annular agglomerates with various bonding strength and internal holes modelled by the Discrete Element Method (DEM) . Detailed study is presented in a journal paper entitled 'Discrete Element Analysis of Diametrical Compression of Annular Agglomerates'. We provide all the essential data in a single excel file with the description below: Dataset 1- Fig. 4. Evolution of forces for both top and bottom platens with strain. Dataset 2-Fig. 5. Evolution of average mechanical coordination number with strain. Dataset 3-Fig. 7. Force-strain curves during diametrical compression with different surface energies (λ=0.3). Dataset 4-Fig. 8. The peak forces against the surface energy of annular specimens. Dataset 5-Fig. 9. Variation of the tensile strength with surface energy of the annular specimens. Dataset 6-Fig. 11. Force-strain curves with different ratios of internal diameter to the external diameter (γ=15 J/m2). Dataset 7- Fig.12. The peak force on platens against the ratio of internal diameter to the external diameter of annular specimens. Dataset 8-Fig. 13. Variation of tensile strength with different ratios of internal diameter to the external diameter. Dataset 9-Fig. 15. Force-strain curves of disc specimens with different surface energies. Dataset 10-Fig. 16. The calculated tensile strength of disc specimens. Dataset 11-Fig. 17. Comparisons of current DEM results of data from experimental data Dataset 12-Fig. 18. Dimensionless parameter (σ_t R)/γ against the ratio of internal diameter to the external diameter λ.本数据集包含两类数据：用于描述不同粘结强度与内孔结构环形团聚体三维径向压缩试验的离散元法（Discrete Element Method，DEM）数值模拟数据，以及对应实验数据。相关详细研究成果已发表于题为《环形团聚体径向压缩的离散元分析》（Discrete Element Analysis of Diametrical Compression of Annular Agglomerates）的期刊论文。我们将全部核心数据整合至单个Excel文件中，各数据集对应内容如下： 数据集1对应图4：上下压头的受力随应变的演化规律； 数据集2对应图5：平均机械配位数随应变的演化过程； 数据集3对应图7：不同表面能（λ=0.3）下径向压缩过程的力-应变曲线； 数据集4对应图8：环形试样的峰值力与表面能的对应关系； 数据集5对应图9：环形试样的抗拉强度随表面能的变化规律； 数据集6对应图11：不同内外径比（γ=15 J/m²）下的力-应变曲线； 数据集7对应图12：压头所受峰值力与环形试样内外径比的对应关系； 数据集8对应图13：不同内外径比下抗拉强度的变化情况； 数据集9对应图15：不同表面能下圆盘试样的力-应变曲线； 数据集10对应图16：圆盘试样的计算抗拉强度； 数据集11对应图17：本次离散元法结果与实验数据的对比分析； 数据集12对应图18：无量纲参数(σ_t R)/γ随环形试样内外径比的变化规律。