| 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)
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| Source Publication | COMPUTERS AND GEOTECHNICS
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| 2021-07 | |
| Volume | 135Pages:104168 |
| ISSN | 0266-352X |
| Abstract | 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. |
| Keyword | Contact detection Potential contact pair Half-space inclusion relation Convex polygonal block Convex polyhedral block |
| Subject Area | Computer Science, Interdisciplinary Applications ; Engineering, Geological ; Geosciences, Multidisciplinary |
| DOI | 10.1016/j.compgeo.2021.104168 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000663310500004 |
| Funding Organization | National Key Research and Development Project of China ; Ministry of Science and Technology of China [2018YFC1505504] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Feng, C (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90259 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation 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.Rp_Au:Feng, C (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 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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| wang2021.pdf（4265KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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