Modeling the failure process of rock masses using a 3D nodal-based continuous-discontinuous deformation analysis method
文献类型：期刊论文
| 作者 | Xia, Yang1,2; Yang, Yongtao1,2 |
| 刊名 | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
 |
| 出版日期 | 2024-05-15 |
| 卷号 | 425页码:29 |
| 关键词 | DDA method Rock block system 3D-NCDDAM Rock failure |
| ISSN号 | 0045-7825 |
| DOI | 10.1016/j.cma.2024.116968 |
| 英文摘要 | A three-dimensional nodal-based continuous-discontinuous deformation analysis method (3DNCDDAM) is developed in this study for modeling the failure process of rock masses. In the 3DNCDDAM, four-node tetrahedral elements which can be automatally generated are used to discretize the problem domain. To reduce computational cost, and effectively model the failure process of rock masses at concerned regions, the problem domain is devided into two types of regions, namely, the "non-destructive region" and "possible destructive region". The nondestructive region is mainly used to reduce the boundary effects on the numerical results, and is regarded transitional zone in which the failure of rock masses is not considered. For the possible destructive region, artificial joint elements are inserted, and the failure of these joint elements is used to represent fracture initiation and propagation in rock masses. Additionally, the contact potential which is initially proposed in finite-discrete element method (FDEM) is incorporated into the 3D-NCDDAM to simuate the opening and slipping of discontinuous structural planes involved in rock masses' failure process. Note that the difficultly in determing contact types in the traditional 3D discontinuous deformation analysis (3D-DDA) method is avoided in the 3DNCDDAM. The proposed 3D-NCDDAM can be treated as a hybrid method, which inherite both the advantage of DDA method and FDEM. To validate the 3D-NCDDAM, seven numerical examples are conducted. The numerical results indicte that the 3D-NCDDAM can effectively model the failure process of rock masses in both experimental scale and engineering scale. |
| 资助项目 | National Natural Science Foundation of China[12072357] ; National Natural Science Foundation of China[12272393] ; Young Top-notch Talent Cultivation Program of Hubei Province |
| WOS研究方向 | Engineering ; Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001223551700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41360]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yang, Yongtao |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Yang,Yang, Yongtao. Modeling the failure process of rock masses using a 3D nodal-based continuous-discontinuous deformation analysis method[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2024,425:29. |
| APA | Xia, Yang,&Yang, Yongtao.(2024).Modeling the failure process of rock masses using a 3D nodal-based continuous-discontinuous deformation analysis method.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,425,29. |
| MLA | Xia, Yang,et al."Modeling the failure process of rock masses using a 3D nodal-based continuous-discontinuous deformation analysis method".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 425(2024):29. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。