A half-space based contact detection algorithm for complex blocks

doi:10.1016/j.compgeo.2021.104168

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	A half-space based contact detection algorithm for complex blocks
	Wang XQ(王心泉); Feng C(冯春); Zhu XG(朱心广); Zhang L(张丽); Li SH(李世海)
发表期刊	COMPUTERS AND GEOTECHNICS
	2021-07
卷号	135 页码:104168
ISSN	0266-352X
摘要	Contact detection algorithm is a critical constituent of discontinuous calculation method, the accuracy of contact detection directly affects the simulation results. Algorithms for contact detection between irregular blocks are difficult to achieve because of the complexity of geometry and the diversity of contact types. A half-space based contact detection algorithm is proposed, it can accurately identify the contact relationship between convex polygonal and polyhedral blocks. The proposed contact detection approach is implemented into continuumdiscontinuum element method. This contact detection algorithm consists of two stages: first to identify potential contact pairs and then to judge the contact status by half-space. Half-space is defined by the boundary of the block, by judging the half-space inclusion relation between potential contact pairs, the contact status between two blocks can be detected, there is no need to calculate the distance between blocks in the process of contact state detection. This algorithm is realized through programming, several examples validated the accuracy of this algorithm.
关键词	Contact detection Potential contact pair Half-space inclusion relation Convex polygonal block Convex polyhedral block
学科领域	Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary
DOI	10.1016/j.compgeo.2021.104168
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000663310500004
项目资助者	National Key Research and Development Project of China ; Ministry of Science and Technology of China [2018YFC1505504]
论文分区	一类
力学所作者排名	1
RpAuthor	Feng, C (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90259
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang XQ,Feng C,Zhu XG,et al. A half-space based contact detection algorithm for complex blocks[J]. COMPUTERS AND GEOTECHNICS,2021,135:104168.
APA	王心泉,冯春,朱心广,张丽,&李世海.(2021).A half-space based contact detection algorithm for complex blocks.COMPUTERS AND GEOTECHNICS,135,104168.
MLA	王心泉,et al."A half-space based contact detection algorithm for complex blocks".COMPUTERS AND GEOTECHNICS 135(2021):104168.

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