A unified computational framework for modelling continuous and discontinuous media and their interactions
文献类型：期刊论文
| 作者 | Meng, Jingjing3; Zhang, Xue2; Wang, Liang1; Zhou, Chuangbing3 |
| 刊名 | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
 |
| 出版日期 | 2025-02-15 |
| 卷号 | 435页码:20 |
| 关键词 | Continuous and discontinuous modelling Unified model FEM-DEM coupling Monolithic algorithms |
| ISSN号 | 0045-7825 |
| DOI | 10.1016/j.cma.2024.117668 |
| 英文摘要 | Accurately modelling the interactions between continuous and discontinuous materials is essential for advancing engineering solutions across a wide range of fields. Owing to fundamental differences in the governing equations of discontinuous and continuous numerical models, distinct solution schemes have been developed, presenting challenges for their coupling. This paper proposes a unified scheme for modelling continuous and discontinuous materials, integrating them monolithically by adopting a variational framework for an implicit Discrete Element Method (DEM) and the Finite Element Method (FEM). The seamlessly coupled FEM-DEM model is formulated as a convex optimisation problem, which can be transformed into a standard secondorder cone program (SOCP) and solved efficiently using modern optimisation algorithms. The proposed approach has been validated through a series of numerical examples. Additionally, a numerical model test on granular flow against an elastic barrier has been conducted, demonstrating the scheme's capability in modelling the impact dynamics of granular flows and the resulting deformation and stress distribution in structures, which has significant implications for engineering design involving granular material handling. |
| 资助项目 | Jiangxi Provincial Key Laboratory of Hydraulic Geotechnical Engineering Safety ; UK Research and Innovation[EP/Y032683/1] |
| WOS研究方向 | Engineering ; Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001389617400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37710]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhang, Xue |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan, Peoples R China 2.Univ Liverpool, Dept Civil & Environm Engn, Liverpool, England 3.Nanchang Univ, Sch Infrastruct Engn, Nanchang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Jingjing,Zhang, Xue,Wang, Liang,et al. A unified computational framework for modelling continuous and discontinuous media and their interactions[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2025,435:20. |
| APA | Meng, Jingjing,Zhang, Xue,Wang, Liang,&Zhou, Chuangbing.(2025).A unified computational framework for modelling continuous and discontinuous media and their interactions.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,435,20. |
| MLA | Meng, Jingjing,et al."A unified computational framework for modelling continuous and discontinuous media and their interactions".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 435(2025):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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