Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems
文献类型：期刊论文
| 作者 | Liu, Gang1; Ma, Fengshan2; Zhang, Maosheng3; Guo, Jie2; Jia, Jun1 |
| 刊名 | ENGINEERING COMPUTATIONS
 |
| 出版日期 | 2022-01-11 |
| 页码 | 22 |
| 关键词 | Y-Mat code Combined FDEM Uniaxial compression test Brazilian split test Anti-dip slope Progressive failure process |
| ISSN号 | 0264-4401 |
| DOI | 10.1108/EC-12-2020-0741 |
| 英文摘要 | Purpose Continua and discontinua coexist in natural rock materials. This paper aims to present an improved approach for addressing the mechanical response of rock masses based on the combined finite-discrete element method (FDEM) proposed by Munjiza. Design/methodology/approach Several algorithms have been programmed in the new approach. The algorithms include (1) a simpler and more efficient algorithm to calculate the contact force; (2) An algorithm for tangential contact force closer to the actual physical process; (3) a plastic yielding criterion (e.g. Mohr-Coulomb) to modify the elastic stress for fitting the mechanical behavior of elastoplastic materials; and (4) a complete code for the mechanical calculation to be implemented in Matrix Laboratory (MATLAB). Findings Three case studies, including two standard laboratory experiments (uniaxial compression and Brazilian split test) and one engineering-scale anti-dip slop model, are presented to illustrate the feasibility of the Y-Mat code and its ability to deal with multi-scale rock mechanics problems. The results, including the progressive failure process, failure mode and trajectory of each case, are acceptable compared to other corresponding studies. It is shown that, the code is capable of modeling geotechnical and geological engineering problems. Originality/value This article gives an improved FDEM-based numerical calculation code. And, feasibility of the code is verified through three cases. It can effectively solve the geotechnical and geological engineering problems. |
| WOS关键词 | UNIAXIAL COMPRESSIVE STRENGTH ; STABILITY ANALYSIS ; MODELS |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0904] ; National Key Research and Development Program of China[2018YFC1505301] ; International Cooperation Program of Chinese Academy of Sciences[131551KYSB20180042] ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China[DD20190714] |
| WOS研究方向 | Computer Science ; Engineering ; Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000740933400001 |
| 出版者 | EMERALD GROUP PUBLISHING LTD |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; International Cooperation Program of Chinese Academy of Sciences ; International Cooperation Program of Chinese Academy of Sciences ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China ; Geological Survey Project of China Geological Survey, Ministry of Natural Resources of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103973]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Ma, Fengshan |
| 作者单位 | 1.Xian Ctr Geol Survey CGS, Key Lab Geohazards Loess Area, Xian, Peoples R China 2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Gang,Ma, Fengshan,Zhang, Maosheng,et al. Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems[J]. ENGINEERING COMPUTATIONS,2022:22. |
| APA | Liu, Gang,Ma, Fengshan,Zhang, Maosheng,Guo, Jie,&Jia, Jun.(2022).Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems.ENGINEERING COMPUTATIONS,22. |
| MLA | Liu, Gang,et al."Y-Mat: an improved hybrid finite-discrete element code for addressing geotechnical and geological engineering problems".ENGINEERING COMPUTATIONS (2022):22. |
入库方式： OAI收割
来源：地质与地球物理研究所
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