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Study on the Progressive Failure Characteristics of Longmaxi Shale under Uniaxial Compression Conditions by X-ray Micro-Computed Tomography

文献类型：期刊论文

作者Li, Xiao1,2; Duan, Yongting1,2; Li, Shouding1,2; Zhou, Runqing1
刊名ENERGIES
出版日期2017-03-01
卷号10期号:3
关键词Shale X-ray Micro-ct Uniaxial Compression Progressive Failure Destruction Mechanism
ISSN号1996-1073
DOI10.3390/en10030303
文献子类Article
英文摘要To investigate the deformation-failure process of Longmaxi shale under uniaxial compression conditions from the mesoscopic and macroscopic points of view, novel X-ray micro-Computed Tomography (micro-CT) equipment combined with unique loading apparatus was used. Cylindrical shale samples (4 mm in diameter and 8 mm in height) were produced to perform a series of uniaxial compression tests. CT scanning images at different time points during the loading process were obtained to study the characteristics of the progressive failure. In addition, stereograms were reconstructed and vertical slices were selected to explain the failure mechanism. From the results of the testing the low-density area, local per-peak cracks, numerous post-peak cracks and secondary cracks consecutively appeared in the CT images. Vertical and inclined fissures in the samples could be observed from the stereograms' surfaces and from internal slices. The cracking indicates that the failure process of shale is progressive and the failure mechanism of shale under uniaxial compression is mainly tension destruction or comprehensive tension-shear destruction.
WOS关键词DIGITAL IMAGE CORRELATION ; LOCALIZED DEFORMATION ; CT ; REVOLUTION ; SAND
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000398736700043
出版者MDPI AG
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10030301) ; National Natural Science Foundation of China(41227901) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10030301) ; National Natural Science Foundation of China(41227901) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10030301) ; National Natural Science Foundation of China(41227901) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB10030301) ; National Natural Science Foundation of China(41227901)
源URL[http://ir.iggcas.ac.cn/handle/132A11/52974]  
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Duan, Yongting
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xiao,Duan, Yongting,Li, Shouding,et al. Study on the Progressive Failure Characteristics of Longmaxi Shale under Uniaxial Compression Conditions by X-ray Micro-Computed Tomography[J]. ENERGIES,2017,10(3).
APA Li, Xiao,Duan, Yongting,Li, Shouding,&Zhou, Runqing.(2017).Study on the Progressive Failure Characteristics of Longmaxi Shale under Uniaxial Compression Conditions by X-ray Micro-Computed Tomography.ENERGIES,10(3).
MLA Li, Xiao,et al."Study on the Progressive Failure Characteristics of Longmaxi Shale under Uniaxial Compression Conditions by X-ray Micro-Computed Tomography".ENERGIES 10.3(2017).

入库方式： OAI收割

来源：地质与地球物理研究所

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