Crack initiation of granite under uniaxial compression tests: A comparison study
文献类型：期刊论文
| 作者 | Zhang, G. K.2,3; Li, H. B.1,2; Wang, M. Y.3; Li, X. F.1,2 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 12期号:3页码:656-666 |
| 关键词 | Crack initiation (CI) stress Acoustic emission (AE) Ultrasonic transmission Wave velocity Granite |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2019.07.014 |
| 英文摘要 | In this study, a combination of acoustic emission (AE) method (AEM) and wave transmission method (WTM) is used to investigate the behaviors of AE and ultrasonic properties corresponding to initial fracturing in granitic rocks. The relationships of AE characteristics, frequency spectra, and spatial locations with crack initiation (CI) are studied. The anisotropic ultrasonic characteristics, velocity distributions in different ray paths, wave amplitudes, and spectral characters of transmitted waves are investigated. To identify CI stress, damage initiations characterized by strain-based method (SBM), AEM and WTM are compared. For granite samples, it shows that the ratio of CI stress to peak strength estimated by SBM ranges from 0.4 to 0.55, and 0.49-0.6 by WTM, which are higher than that of AEM (0.38-0.46). The CI stress identified by AEM indicates the onset of microcracking, and the combination of AEM and WTM provides an insight into the detection of rock damage initiation and anisotropy. (C) 2020 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | National Natural Science Foundation of China[51809137] ; Natural Science Foundation of Jiangsu Province[BK20180480] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z017015] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000540806700019 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24350]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, X. F. |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, G. K.,Li, H. B.,Wang, M. Y.,et al. Crack initiation of granite under uniaxial compression tests: A comparison study[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2020,12(3):656-666. |
| APA | Zhang, G. K.,Li, H. B.,Wang, M. Y.,&Li, X. F..(2020).Crack initiation of granite under uniaxial compression tests: A comparison study.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,12(3),656-666. |
| MLA | Zhang, G. K.,et al."Crack initiation of granite under uniaxial compression tests: A comparison study".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 12.3(2020):656-666. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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