Dynamic characteristics and fractal representations of crack propagation of rock with different fissures under multiple impact loadings

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成果类型：

期刊论文

作者：

Sun, Bing;Liu, Shun;Zeng, Sheng*;Wang, Shanyong;Wang, Shaoping

通讯作者：

Zeng, Sheng

作者机构：

[Sun, Bing; Liu, Shun] Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China.

[Zeng, Sheng] Univ South China, Sch Resource & Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.

[Zeng, Sheng; Wang, Shanyong] Univ Newcastle, ARC Ctr Excellence Geotech Sci & Engn, Callaghan, NSW 2308, Australia.

[Wang, Shaoping] Guangxi Univ, Coll Civil Engn, Nanning 530004, Peoples R China.

通讯机构：

[Zeng, Sheng] S

School of Resource & Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China.

ARC Centre of Excellence for Geotechnical Science and Engineering, The University of Newcastle, Callaghan, NSW, 2308, Australia.

语种：

英文

期刊：

Scientific Reports

ISSN：

2045-2322

年：

2021

卷：

期：

页码：

13071

DOI：

10.1038/s41598-021-92277-x

基金类别：

National Natural Science Foundation for Young Scientists of ChinaNational Natural Science Foundation of China (NSFC) [51204098]; Natural Science Foundation of Hunan Province, ChinaNatural Science Foundation of Hunan Province [2018JJ2331]

机构署名：

本校为第一机构

院系归属：

土木工程学院

摘要：

To investigate the influence of the fissure morphology on the dynamic mechanical properties of the rock and the crack propagation, a drop hammer impact test device was used to conduct impact failure tests on sandstones with different fissure numbers and fissure dips, simultaneously recorded the crack growth after each impact. The box fractal dimension is used to quantitatively analyze the dynamic change in the sandstone cracks and a fractal model of crack growth over time is established based on fractal theory. The results demonstrate that unde...

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Dynamic characteristics and fractal representations of crack propagation of rock with different fissures under multiple impact loadings

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