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Mechanical analysis and failure modes prediction of composite rock under uniaxial compression

Composite rocks are easily encountered in a wide range of geotechnical construction projects. Understanding their mechanical properties and failure modes is very important to ensure project quality and safety. This study conducted a mechanical analysis to assess the stress distribution in composite...

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Autores principales: Li, Jianguang, Yu, Zhuoqun, Zhou, Ziyi, Wang, Yanchun, Li, Jiwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8613263/
https://www.ncbi.nlm.nih.gov/pubmed/34819603
http://dx.doi.org/10.1038/s41598-021-02331-x
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author Li, Jianguang
Yu, Zhuoqun
Zhou, Ziyi
Wang, Yanchun
Li, Jiwei
author_facet Li, Jianguang
Yu, Zhuoqun
Zhou, Ziyi
Wang, Yanchun
Li, Jiwei
author_sort Li, Jianguang
collection PubMed
description Composite rocks are easily encountered in a wide range of geotechnical construction projects. Understanding their mechanical properties and failure modes is very important to ensure project quality and safety. This study conducted a mechanical analysis to assess the stress distribution in composite rock with a horizontal interlayer and predicted the possible failure modes. Uniaxial compression tests were carried out on the composite rock samples to reveal their mechanical properties. It was concluded that a composite rock with a thick interlayer failed more easily than a composite rock with a thin interlayer. Four potential failure modes were related to the internal stress distribution under compression and the differences in deformation capacity and strength among the constituent components. The stress distribution derived from the mechanical analysis could explain the failure mechanism very well. These results verified the validity of the mechanical analysis results and improved understanding of the mechanical properties of composite rock with a horizontal interlayer.
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spelling pubmed-86132632021-11-26 Mechanical analysis and failure modes prediction of composite rock under uniaxial compression Li, Jianguang Yu, Zhuoqun Zhou, Ziyi Wang, Yanchun Li, Jiwei Sci Rep Article Composite rocks are easily encountered in a wide range of geotechnical construction projects. Understanding their mechanical properties and failure modes is very important to ensure project quality and safety. This study conducted a mechanical analysis to assess the stress distribution in composite rock with a horizontal interlayer and predicted the possible failure modes. Uniaxial compression tests were carried out on the composite rock samples to reveal their mechanical properties. It was concluded that a composite rock with a thick interlayer failed more easily than a composite rock with a thin interlayer. Four potential failure modes were related to the internal stress distribution under compression and the differences in deformation capacity and strength among the constituent components. The stress distribution derived from the mechanical analysis could explain the failure mechanism very well. These results verified the validity of the mechanical analysis results and improved understanding of the mechanical properties of composite rock with a horizontal interlayer. Nature Publishing Group UK 2021-11-24 /pmc/articles/PMC8613263/ /pubmed/34819603 http://dx.doi.org/10.1038/s41598-021-02331-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Li, Jianguang
Yu, Zhuoqun
Zhou, Ziyi
Wang, Yanchun
Li, Jiwei
Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title_full Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title_fullStr Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title_full_unstemmed Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title_short Mechanical analysis and failure modes prediction of composite rock under uniaxial compression
title_sort mechanical analysis and failure modes prediction of composite rock under uniaxial compression
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8613263/
https://www.ncbi.nlm.nih.gov/pubmed/34819603
http://dx.doi.org/10.1038/s41598-021-02331-x
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