Experimental data of 3D printed granular material for verification of discrete element modeling simulation
Experimental data of 3D printed granular material for verification of discrete element modeling simulation
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DOI：
10.1016/j.sandf.2022.101178
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发表时间：
2022-08
影响因子：
3.7
通讯作者：
Y. Nakata;Shuji Moriguchi;S. Kajiyama;Ryunosuke Kido;N. Kikkawa;H. Saomoto;D. Takano;Y. Higo
中科院分区：
文献类型：
--
作者：
Y. Nakata;Shuji Moriguchi;S. Kajiyama;Ryunosuke Kido;N. Kikkawa;H. Saomoto;D. Takano;Y. Higo
评估数值模拟分析结果的验证需要材料的真实的行为的基准。本报告提供了一组实验数据作为离散元法（DEM）分析的基准。该实验包括测量由3D打印机制备的人造颗粒的颗粒特性和休止角。打印机的使用对于减少DEM分析的颗粒建模中的误差是有效的。人造颗粒的颗粒特性的测量方面，它们的大小，摩擦性能，恢复系数，和弹性刚度。然后，在立方体和圆柱形条件下测试颗粒的休止角。此外，使用X射线CT分析在静止状态下进行样品内部的可视化。这样，在静止状态下，可以获得样品内部的应变分布以及位移水平和矢量。本技术报告基于JGS TC 105国内委员会的活动。
Evaluating the verification of numerical simulation analysis results requires a benchmark for the real behavior of a material. The present report provides a set of experimental data as a benchmark for Discrete Element Method (DEM) analysis. The experiment consisted of the measurement of the particle characteristics and the angles of repose of artificial particles prepared by a 3D printer. The use of a printer is effective for reducing the errors in the particle modeling of the DEM analysis. The particle characteristics of the artificial particles were measured in terms of their size, frictional properties, coefficients of restitution, and elastic stiffness. Then, the angles of repose of the particles were tested under cubical and cylindrical conditions. In addition, the visualization inside samples in the repose state was carried out using X-ray CT analysis. Thus, in the resting state, the strain distribution inside the samples as well as the displacement levels and vectors could be obtained. This technical report is based on the activities of the TC105 domestic committee of the JGS.