Numerical study of soil-rock mixture:Generation of random aggregate structure

被引：0
|
作者：
CHEN Li [1 ]
YANG YongTao [1 ]
ZHENG Hong [1 ,2 ]
机构：
[1] State Key Laboratory of Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
[2] Key Laboratory of Urban Security and Disaster Engineering, Ministry of Education, Beijing University of Technology
来源：
Science China Technological Sciences | 2018年 / 03期
基金：
中国国家自然科学基金;
关键词：
soil-rock mixture(SRM); random aggregate structure(RAS); random sequential addition(RSA); EAB algorithm; background mesh;
D O I：
暂无
中图分类号：
TU521 [砂、石、土、渣材料];
学科分类号：
0805 ; 080502 ; 081304 ;
摘要：
The soil-rock mixture(SRM) is highly heterogeneous. Before carrying out numerical analysis,a structure model should be generated. A reliable way to obtain such structure is by generating random aggregate structure based on random sequential addition(RSA). The classical RSA is neither efficient nor robust since valid positions to place new inclusions are formulated by trial, which involves repetitive overlapping tests. In this paper, the algorithm of Entrance block between block A and B(EAB)is synergized with background mesh to redesign RSA so that permissible positions to place new inclusions can be predicted,resulting in dramatic improvement in efficiency and robustness.
引用
收藏
页码：359 / 369
页数：11
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