3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock

doi:10.1016/j.compgeo.2017.05.023

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock
	Li, H. B.2; Zhao, Y.1; Li, X. F.1,2,3
刊名	COMPUTERS AND GEOTECHNICS
	2017
卷号	90 页码:96-112
关键词	3D polycrystalline discrete element method Granular rock Damage propagation Discontinuum Numerical modeling
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2017.05.023
英文摘要	A three-dimensional Voronoi tessellation model based on the distinct element method (DEM) is proposed to model the representative part of the microstructures of granular brittle rocks. Regularization is employed to decrease the frequency of polyhedrons with large edge ratio and contributes to a higher efficiency for element meshing. Sensitivity analyses are performed for a series of micro contact parameters in accordance with the macro responses observed in laboratory experiments (e.g. the uniaxial compression test, the Brazilian disc test and the triaxial compression test). Verifications by simulating the spalling test and plate impact test indicate that the 3D polycrystalline discrete element method (3PDEM) can be employed for efficiently simulating nonlinear mechanical behaviors, large deformation, strain softening and rock dynamics. (C) 2017 Elsevier Ltd. All rights reserved.
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000410011600008
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4146]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Monash Univ, Dept Civil Engn, Clayton,; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.Univ Chinese Acad Sci
推荐引用方式 GB/T 7714	Li, H. B.,Zhao, Y.,Li, X. F.. 3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock[J]. COMPUTERS AND GEOTECHNICS,2017,90:96-112.
APA	Li, H. B.,Zhao, Y.,&Li, X. F..(2017).3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock.COMPUTERS AND GEOTECHNICS,90,96-112.
MLA	Li, H. B.,et al."3D polycrystalline discrete element method (3PDEM) for simulation of crack initiation and propagation in granular rock".COMPUTERS AND GEOTECHNICS 90(2017):96-112.