Integrating RFPA and DEM in Adaptive RDFA Modeling of Rock Fracturing Process
文献类型：期刊论文
| 作者 | Gong, Bin5; Zhao, Tao1; Thusyanthan, Indrasenan3; Tang, Chun'an2; Zhou, Gordon G. D.4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2024-12-07 |
| 页码 | 19 |
| 关键词 | Rock mechanics Crack propagation Continuous-discontinuous modeling Finite element method Discrete element method Adaptive node adjustment |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-024-04239-0 |
| 英文摘要 | This paper proposes a hybrid rock discrete fracture analysis (RDFA) method that combines the rock failure process analysis (RFPA) method and discrete element method. Based on the continuum mechanics, statistical damage mechanics, and contact theory, RDFA offers a comprehensive framework to simulate the continuous-discontinuous behaviors encompassing fracture and fragmentation within rocks. Through the newly developed nodal updating scheme, RDFA enables adaptive node adjustments at critical crack tips once the strength criteria is met, effectively capturing the initiation and propagation of zero-thickness cracks. Notably, RDFA accommodates the heterogeneity of rock masses, allowing for the synchronized consideration of localized damage and fine-crack evolution. RDFA was calibrated by modelling the Brazilian splitting tests on rock, aligning closely with the analytical solutions. Subsequently, the rock specimens containing single or double flaws were uniaxially compressed. The results showed that when the flaw inclination angle alpha increased from 0 degrees to 60 degrees, the distance between the initiation position of cracks and the flaw tip decreased exponentially; the crack initiation stress first decreased and then increased with the growth of alpha, and when alpha = 30 degrees, it reached the minimum value of 15.2 MPa. RDFA can effectively replicate rock fracturing processes, failure modes, and critical strengths across diverse inclinations. |
| 资助项目 | UK Research and Innovation[EP/Y02754X/1] ; UK Research and Innovation (UKRI)[EP/V028723/1] ; UK Engineering and Physical Sciences Research Council (EPSRC) New Investigator Award |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001371138000001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43371]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China 3.Gavin & Doherty Geosolut, London W1W 7LT, England 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610000, Peoples R China 5.Brunel Univ London, Dept Civil & Environm Engn, London UB8 3PH, England |
| 推荐引用方式 GB/T 7714 | Gong, Bin,Zhao, Tao,Thusyanthan, Indrasenan,et al. Integrating RFPA and DEM in Adaptive RDFA Modeling of Rock Fracturing Process[J]. ROCK MECHANICS AND ROCK ENGINEERING,2024:19. |
| APA | Gong, Bin,Zhao, Tao,Thusyanthan, Indrasenan,Tang, Chun'an,&Zhou, Gordon G. D..(2024).Integrating RFPA and DEM in Adaptive RDFA Modeling of Rock Fracturing Process.ROCK MECHANICS AND ROCK ENGINEERING,19. |
| MLA | Gong, Bin,et al."Integrating RFPA and DEM in Adaptive RDFA Modeling of Rock Fracturing Process".ROCK MECHANICS AND ROCK ENGINEERING (2024):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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