Equivalent Nodal Intensity-Based Contact Model for 3D Finite-Discrete Element Method in Rock Fracturing Analysis
文献类型：期刊论文
| 作者 | Liu, He3,4; Zhu, Panpan4; Liu, Quansheng3; Sun, Chaoyi2; Yang, Yongtao4; He, Guicheng4; He, Chuncan1 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2025-03-04 |
| 页码 | 28 |
| 关键词 | FDEM Contact calculation Rock fracture Parallel computing |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-025-04454-3 |
| 英文摘要 | In this paper, a novel equivalent nodal intensity-based contact model is proposed to enhance 3D FDEM (Combined Finite-Discrete-Element Method) in fracturing analysis. The normal contact force is uniformly distributed on the overlapped region between two contact bodies, with its magnitude being linearly proportional to the equivalent nodal intensity, which can be readily obtained based on the geometric characteristics of the overlapped region. In comparison with the existing contact models in 3D FDEM, the proposed contact model achieves significant simplification and enables efficient parallelization on General Purpose Graphic Processing Unit (GPGPU). By conducting a range of comparative tests, it has been confirmed that the proposed contact model correctly captures the interaction between discrete bodies and produces results consistent with those generated by the original contact model and laboratory experiment, thus validating the feasibility and applicability of the proposed contact model. Meanwhile, the efficiency analysis indicates that, for GPGPU parallel version, the proposed contact model achieves a speed-up ratio of 7.2 compared to the original model in 3D FDEM. The proposed contact model is physically sound and computationally efficient, which holds promise for driving advancements in 3D FDEM. |
| 资助项目 | National Natural Science Foundation of China[42207235] ; National Natural Science Foundation of China[U21A20153] ; National Natural Science Foundation of China[52274127] ; China Postdoctoral Science Foundation[2024T170684] ; National Key Research and Development Program of China[2021YFC2902104] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110723] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001436546100001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36705]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Quansheng; Sun, Chaoyi |
| 作者单位 | 1.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn, Wuhan 430072, Hubei, Peoples R China 4.Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, He,Zhu, Panpan,Liu, Quansheng,et al. Equivalent Nodal Intensity-Based Contact Model for 3D Finite-Discrete Element Method in Rock Fracturing Analysis[J]. ROCK MECHANICS AND ROCK ENGINEERING,2025:28. |
| APA | Liu, He.,Zhu, Panpan.,Liu, Quansheng.,Sun, Chaoyi.,Yang, Yongtao.,...&He, Chuncan.(2025).Equivalent Nodal Intensity-Based Contact Model for 3D Finite-Discrete Element Method in Rock Fracturing Analysis.ROCK MECHANICS AND ROCK ENGINEERING,28. |
| MLA | Liu, He,et al."Equivalent Nodal Intensity-Based Contact Model for 3D Finite-Discrete Element Method in Rock Fracturing Analysis".ROCK MECHANICS AND ROCK ENGINEERING (2025):28. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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