A novel quantitative explanation for the fracture mechanism of sandstone containing a circular inclusion

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成果类型：

期刊论文

作者：

Zhang, Kai;Zhang, Ke;Bao, Rui;Fan, Wenchen;Xie, Jianbin

通讯作者：

Zhang, Ke(zhangke@kust.edu.cn)

作者机构：

[Zhang, Ke; Zhang, Kai] Kunming Univ Sci & Technol, Fac Civil Engn & Mech, Kunming, Peoples R China.

[Zhang, Ke] Kunming Univ Sci & Technol, Fac Elect Power Engn, Kunming, Peoples R China.

[Bao, Rui] China Nonferrous Met Ind Co Ltd, Dept Sci & Technol, Kunming Prospecting Design Inst, Kunming, Peoples R China.

[Fan, Wenchen] Cent South Univ Forestry & Technol, Sch Civil Engn, Changsha, Peoples R China.

[Xie, Jianbin] Yunnan Univ, Dept Civil Engn, Kunming, Peoples R China.

通讯机构：

[Ke Zhang; Ke Zhang Ke Zhang Ke Zhang] F

Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, China<&wdkj&>Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming, China

语种：

英文

关键词：

crack initiation and propagation;debonding mechanism;digital image correlation (DIC);inclusion;rock mechanics

期刊：

Fatigue & Fracture of Engineering Materials & Structures

ISSN：

8756-758X

年：

2023

卷：

期：

页码：

1775-1791

DOI：

10.1111/ffe.13959

基金类别：

The authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (Grant Nos. 11902128 and 11862024), the Applied Basic Research Foundation of Yunnan Province, China (Grant No. 2019FI012), the Natural Science Foundation of Hunan Province (Grant No. 2021JJ41077), and the Scientific Research Project of Hunan Provincial Department of Education (Grant No. 21B0227).

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

In this study, uniaxial compressive tests combined with the digital image correlation (DIC) method are used to investigate the mechanical properties, fracture process, and failure pattern of sandstone containing a circular inclusion. A DIC-based methodology is proposed to quantitatively explain the crack initiation and propagation mechanism. The identification criterion of crack type is presented based on the nature of cracks and the development trends of relative displacement. Three crack types, including tensile cracks, tensile–shear cracks,...

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A novel quantitative explanation for the fracture mechanism of sandstone containing a circular inclusion

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