Analysis of multi-level force chain network in granite tensile fracture based on 3D-GBM
文献类型：期刊论文
| 作者 | Zhu, Kaiyuan1,3; Sun, Guanhua1,3; Shi, Lu1,3; Lin, Shan2; Yu, Xianyang3 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 166页码:25 |
| 关键词 | Multi-level force chain Grain-based model Microcrack Grain size effect Granite |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2024.108849 |
| 英文摘要 | In practical engineering, the tensile properties of granite have garnered significant attention. To investigate the tensile mechanical behavior and failure mechanisms of granite, comprehensive studies are essential. This study establishes a numerical model based on three-dimensional grainbased models (3D-GBM) within the discrete element method, considering the internal mineral grain structure of granite. The model implements a multi-level classification of force chains and microcracks. Quantitative analysis was performed on the tendencies, quantities, and contact forces of multi-level force chains and microcracks. The analysis examines the tensile strength, microcrack distribution characteristics, and grain size effects of granite from the perspective of force chains. Results indicate that under indirect tensile loading, force chains form between adjacent particles with varying distribution tendencies. High-strength force chains effectively represent the load-bearing capacity of granite, predominantly oriented near the loading direction and primarily located in the center of the sample. Additionally, granite exhibits a significant grain size effect; as the size of mineral grains increases, the number of intragranular contacts with higher mechanical parameters rises, leading to an increase in high-strength force chains and microcracks. Consequently, higher external loads are required to induce failure, resulting in increased tensile strength. |
| 资助项目 | National Natural Science Foundation of China[42107214] ; National Natural Science Foundation of China[12302507] ; Natural Science Foundation of Hubei Province (Three Gorges Innovation Development Joint Fund)[2022CFD031] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001325688800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42678]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shi, Lu |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Kaiyuan,Sun, Guanhua,Shi, Lu,et al. Analysis of multi-level force chain network in granite tensile fracture based on 3D-GBM[J]. ENGINEERING FAILURE ANALYSIS,2024,166:25. |
| APA | Zhu, Kaiyuan,Sun, Guanhua,Shi, Lu,Lin, Shan,&Yu, Xianyang.(2024).Analysis of multi-level force chain network in granite tensile fracture based on 3D-GBM.ENGINEERING FAILURE ANALYSIS,166,25. |
| MLA | Zhu, Kaiyuan,et al."Analysis of multi-level force chain network in granite tensile fracture based on 3D-GBM".ENGINEERING FAILURE ANALYSIS 166(2024):25. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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