A New DIC-Based Method to Identify the Crack Mechanism and Applications in Fracture Analysis of Red Sandstone Containing a Single Flaw
文献类型：期刊论文
| 作者 | Miao, Shuting4,5; Pan, Peng-Zhi4,5; Zhao, Shankun3; Han, Jun2; Konicek, Petr1 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2021-04-21 |
| 页码 | 25 |
| 关键词 | Crack mechanism Digital image correlation Crack location Displacement jump |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-021-02472-5 |
| 英文摘要 | As a representative non-interferometric optical technique, the digital image correlation (DIC) can provide full-field displacement and strain measurement for the deformed rocks. However, the standard DIC technique has a limitation in measuring the displacements at the discontinuity and cannot be directly used for identifying the crack mechanism. Thus, a new DIC-based method is proposed for automatically tracing the discontinuities and quantitatively identifying the crack mechanism, i.e. mode I, mode II, and mixed-mode I/II. The new method involves three steps, including displacement measurement from the standard DIC technique, displacement field reconstruction at the discontinuity with the modified subset splitting technique, and post-processing for crack identification and displacement jump measurement. The effectiveness and robustness of the modified subset splitting technique and post-processing method have been verified with the synthetic images and theoretical displacement fields of mode I crack and dislocation. Then, the proposed method is utilized to locate cracks and quantitatively identify the crack mechanism of the initiated cracks in red sandstone containing a single flaw under uniaxial compression. The crack development in the flawed red sandstone specimens is analyzed and the crack types are summarized, in which wing cracks are in mode I, while horsetail cracks and anti-wing cracks are identified as mixed-mode I/II crack. It is shown that the new method avoids some ambiguous identification of crack mechanism and present more objective results. |
| 资助项目 | State Key Research Development Program of China[2017YFC0804203] ; International Partnership Program of Chinese Academy of Sciences[115242KYSB20160017] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC029] ; Open Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018001] ; Chinese Scholarship Council |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000642047600002 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27284]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Pan, Peng-Zhi |
| 作者单位 | 1.Czech Acad Sci, Inst Geon, Dept Geomech & Min Res, Ostrava 70800, Czech Republic 2.Liaoning Tech Univ, Coll Min, Fuxing 123000, Peoples R China 3.China Coal Res Inst, Natl Key Lab Coal Resources High Efficient Min &, Beijing 100013, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Miao, Shuting,Pan, Peng-Zhi,Zhao, Shankun,et al. A New DIC-Based Method to Identify the Crack Mechanism and Applications in Fracture Analysis of Red Sandstone Containing a Single Flaw[J]. ROCK MECHANICS AND ROCK ENGINEERING,2021:25. |
| APA | Miao, Shuting,Pan, Peng-Zhi,Zhao, Shankun,Han, Jun,&Konicek, Petr.(2021).A New DIC-Based Method to Identify the Crack Mechanism and Applications in Fracture Analysis of Red Sandstone Containing a Single Flaw.ROCK MECHANICS AND ROCK ENGINEERING,25. |
| MLA | Miao, Shuting,et al."A New DIC-Based Method to Identify the Crack Mechanism and Applications in Fracture Analysis of Red Sandstone Containing a Single Flaw".ROCK MECHANICS AND ROCK ENGINEERING (2021):25. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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。