The combined scaled boundary finite-discrete element method: Grain breakage modelling in cohesion-less granular media

被引：20
作者：
Luo, T. [1 ,2 ]
Ooi, E. T. [2 ]
Chan, A. H. C. [3 ]
Fu, S. J. [1 ]
机构：
[1] Xijing Univ, Sch Civil Engn, Xian 710123, Peoples R China
[2] Fed Univ Australia, Sch Engn & Informat Technol, Ballarat, Vic 3550, Australia
[3] Univ Tasmania, Sch Engn & ICT, Hobart, Tas 7000, Australia
来源：
COMPUTERS AND GEOTECHNICS | 2017年 / 88卷
关键词：
Scaled boundary finite element method; Discrete element method; Particle breakage; Granular materials; PARTICLE BREAKAGE; CRACK-PROPAGATION; CONTACT DETECTION; ROCKFILL MATERIALS; NUMERICAL-MODEL; SIMULATION; ALGORITHM; DEM; MECHANICS; POLYGONS;
D O I：
10.1016/j.compgeo.2017.03.012
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A computational technique combining the scaled boundary finite element method (SBFEM) and the discrete element method (DEM) is developed. Both methodologies work in tandem to model two mechanisms i.e. grain-to-grain interaction via DEM; and breakage of individual grains via SBFEM. Both play important roles in characterising the response of granular soils. The combination of the two methods results in some advantages in computational flexibility and implementation in modelling grain breakage in granular materials. Parametric studies demonstrate the method's ability to reproduce stress-strain curves in bi-axial tests of granular rock-fills; and qualitatively predicts characteristics of grain breakage observed in laboratory tests. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：199 / 221
页数：23
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