Micro-deformation mechanism of granular materials under different boundary conditions based on DEM simulation

被引：0
|
作者：
Tong, Zhaoxia [1 ]
Zhou, Min [1 ]
Yao, Yangping [1 ]
机构：
[1] Beihang Univ, Sch Transportat Sci & Engn, Beijing, Peoples R China
来源：
PROGRESS IN CIVIL ENGINEERING, PTS 1-4 | 2012年 / 170-173卷
关键词：
Boundary condition; Micromechanics; Discrete element method (DEM); Granular material; DISCRETE ELEMENT;
D O I：
10.4028/www.scientific.net/AMM.170-173.3361
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Series of biaxial compression simulations are carried out to investigate the effects of boundary condition on the deformation of granular materials by using DEM. The parameters used in DEM are validated by the biaxial compression experiments on elliptical steel bars. The effects of boundary condition on the stress-strain relationship are analyzed. And special focus are put in the analysis of particle displacement, particle rotation, void distribution, particle long axis orientation and contact force with the development of deformation.
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页码：3361 / 3366
页数：6
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