A modeling study of the micro-cracking behavior of brittle crystalline rocks under uniaxial loading considering different scenarios of grain-based models
文献类型：期刊论文
| 作者 | Wang, Song1,4,5; Zhou, Jian3; Zhang, Luqing1,4,5; Han, Zhenhua1,4; Zhang, Fenxiang2 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
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| 出版日期 | 2021-02-01 |
| 卷号 | 14期号:4页码:22 |
| 关键词 | Grain-based model Particle Flow Code Numerical modeling Crystalline rock Micro-cracking evolution |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-021-06551-3 |
| 英文摘要 | The grain-based model (GBM) in two-dimensional Particle Flow Code (PFC2D) is widely used to simulate the deformation and brittle failure of crystalline rocks. However, the original GBM consisting of the parallel-bond (PB) and the smooth-joint (SJ) produces unrealistic micro-cracking processes in which excessive microcracks are distributed along the interfaces of mineral grains under uniaxial loading. To solve the problem, this research presents a discussion of the mechanical behavior of six GBMs composed of different contact models including PB, SJ, and flat-joint (FJ). After the uniaxial compressive and direct tensile tests of numerical granites, it is found that the different contact types in GBMs have a limited influence on the tensile strength (TS), elastic modulus (E), and Poisson's ratio (nu) but have a great impact on the uniaxial compressive strength (UCS) and microcrack pattern. The UCS calculated by the PB/FJ GBM is higher than the actual value. Microcrack distributions simulated by the FJ/SJ and FJ/PB GBMs show that numerous mineral grains are cut across under uniaxial loading instead of their interfaces. While the FJ/SJ and FJ/PB GBMs may well reproduce the brittle failure process of crystalline rocks, it remains to be seen whether they will be applicable to other rock mechanics issues, including triaxial compression, thermal cracking, and hydraulic fracturing. |
| 资助项目 | National Key Research and Development Program[2018YFB1501801] ; National Natural Science Foundation of China[41972287] ; National Natural Science Foundation of China[41672321] ; China Postdoctoral Science Foundation[2018 M630204] ; China Postdoctoral Science Foundation[2019 T120133] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000617422800003 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100089]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Zhang, Luqing |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.BGI Engn Consultants Ltd, Beijing 100038, Peoples R China 3.Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Song,Zhou, Jian,Zhang, Luqing,et al. A modeling study of the micro-cracking behavior of brittle crystalline rocks under uniaxial loading considering different scenarios of grain-based models[J]. ARABIAN JOURNAL OF GEOSCIENCES,2021,14(4):22. |
| APA | Wang, Song,Zhou, Jian,Zhang, Luqing,Han, Zhenhua,&Zhang, Fenxiang.(2021).A modeling study of the micro-cracking behavior of brittle crystalline rocks under uniaxial loading considering different scenarios of grain-based models.ARABIAN JOURNAL OF GEOSCIENCES,14(4),22. |
| MLA | Wang, Song,et al."A modeling study of the micro-cracking behavior of brittle crystalline rocks under uniaxial loading considering different scenarios of grain-based models".ARABIAN JOURNAL OF GEOSCIENCES 14.4(2021):22. |
入库方式： OAI收割
来源：地质与地球物理研究所
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