Experimental study and numerical modeling of brittle fracture of carbonate rock under uniaxial compression

被引：58

作者：

Jia, Lichun ^{[1
]}

Chen, Mian ^{[1
]}

Zhang, Wei ^{[1
]}

Xu, Tong ^{[1
]}

Zhou, Yu ^{[1
]}

Hou, Bing ^{[1
]}

Jin, Yan ^{[1
]}

机构：

[1] China Univ Petr, State Key Lab Petr Resource & Prospecting, Beijing 102249, Peoples R China

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2013年 / 50卷

基金：

中国国家自然科学基金;

关键词：

Microcracks; Uniaxial compression; AE monitoring; CT images; PFC model; FAILURE; PROPAGATION; SOLIDS; DAMAGE; MICROSTRUCTURE; COALESCENCE; INITIATION; SIZE;

D O I：

10.1016/j.mechrescom.2013.04.002

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The brittle carbonate rock taken from the Tarim Oilfield is tested in laboratory under uniaxial compression. The acoustic emission (AE) is used to monitor the microcracking activity in rock during the experiment. Moreover, the 3D tomograms of carbonate rock after uniaxial compression are obtained by using CT imaging technology, which indicates that microcracks mutually interconnect and eventually form macroscopic fractures after failure. The PFC2D is used to model the behavior of brittle rock including microcracks propagation. The stress-strain curve and cracks distribution in rock model are obtained from the PFC simulation. The numerical results agree with the experimental test well. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：58 / 62

页数：5

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