Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test
文献类型：期刊论文
| 作者 | Zhang, Qunlei3,4; Zhi, Zihan4; Feng C(冯春)2 ; Li, Ruixia4; Yue, Jinchao4; Cong, Junyu1
|
| 刊名 | ADVANCES IN CIVIL ENGINEERING
 |
| 出版日期 | 2021-07-07 |
| 卷号 | 2021页码:9 |
| ISSN号 | 1687-8086 |
| DOI | 10.1155/2021/1404568 |
| 通讯作者 | Yue, Jinchao(yuejc@zzu.edu.cn) |
| 英文摘要 | In this study, the continuum-discontinuum element method (CDEM) was used to investigate the tensile fracture mechanism of rock materials. An isotropic rock disk model and models considering different foliation inclinations were established, and three schemes were used to simulate the rock fracturing in Brazilian test. Then, the influences of the rock matrix and foliation strengths on anisotropy rock fracturing were investigated. Furtherly, simulation results were verified, and the rock fracture mechanisms were discussed. The results show that the rock fracturing in Brazilian test can be accurately simulated by CDEM, which is in accordance with the experimental results. For isotropic and horizontal foliation rock, the stress concentration in loading positions causes a local fracture of rock sample, and application of a local strengthening scheme can simulate the integral tension fracture of sample middle. As the foliation angle varies from 15 degrees to 45 degrees, the rock fracturing is affected by the stress concentration and foliation distribution. In splitting simulation, a strengthening scheme should be adopted to overcome this influence. As a result, the rock sample generates the sliding and compression-shear fracture. As the foliation angle changes from 45 degrees to 75 degrees, the foliation, rather than the matrix, dominates the fracture behavior of rock sample. For vertical foliations' rock, as the middle foliation thickness is appropriately broadened, the simulation results are reasonable. In general, the tensile strength of anisotropic rock entirely decreases with an increase of foliation angle, and the effect of foliation strength on the tensile strength rock sample is larger than that of the rock matrix. |
| 分类号 | Q3 |
| WOS关键词 | MECHANICAL-BEHAVIOR ; TENSILE-STRENGTH ; PARTICLE MODEL |
| 资助项目 | National Key R&D Program of China[2018YFC0604502] ; National Key R&D Program of China[2018YFC1505504] ; National Natural Science Foundation of China[51708513] ; China Postdoctoral Science Foundation[2020M672227] ; Henan Provincial Department of Transportation[2018J4] ; Henan Provincial Department of Transportation[2019J1] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000675824900004 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Henan Provincial Department of Transportation |
| 其他责任者 | Yue, Jinchao |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87164]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Gdem Technol Co Ltd, Beijing 100096, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.North China Univ Water Resources & Elect Power, Sch Civil Engn & Commun, Zhengzhou 450045, Peoples R China; 4.Zhengzhou Univ, Sch Water Conservancy Engn, Zhengzhou 450001, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang, Qunlei,Zhi, Zihan,Feng C,et al. Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test[J]. ADVANCES IN CIVIL ENGINEERING,2021,2021:9. |
| APA | Zhang, Qunlei,Zhi, Zihan,冯春,Li, Ruixia,Yue, Jinchao,&Cong, Junyu.(2021).Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test.ADVANCES IN CIVIL ENGINEERING,2021,9. |
| MLA | Zhang, Qunlei,et al."Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test".ADVANCES IN CIVIL ENGINEERING 2021(2021):9. |
入库方式： OAI收割
来源：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。