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Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics

Aiming to bypass the inability to directly observe the evolution process of rock internal deformation and fracture, this paper proposes that rock samples with different inclination angles can be analyzed from the standpoint of energy, using the bond-base peridynamic theory and the PMB model of britt...

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Detalles Bibliográficos
Autores principales: Li, Hewan, Liu, Jian, Wang, Laigui, Ren, Tianjiao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9958110/
https://www.ncbi.nlm.nih.gov/pubmed/36828861
http://dx.doi.org/10.1038/s41598-023-30394-5
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author Li, Hewan
Liu, Jian
Wang, Laigui
Ren, Tianjiao
author_facet Li, Hewan
Liu, Jian
Wang, Laigui
Ren, Tianjiao
author_sort Li, Hewan
collection PubMed
description Aiming to bypass the inability to directly observe the evolution process of rock internal deformation and fracture, this paper proposes that rock samples with different inclination angles can be analyzed from the standpoint of energy, using the bond-base peridynamic theory and the PMB model of brittle materials, combined with laboratory experiments. The whole process of shearing is analyzed, and the LAMMPS software is used to simulate the internal energy change of rock-like materials under shear conditions, while the damage evolution law of samples with different dip angles is studied from macro and micro perspectives. The result shows that prefabricated cracks and the inclination of cracks are important factors for specimen damage, a finding that has important theoretical value for rock mechanics research. The research results can reduce the occurrence of rock burst accidents, the difficulty of mine support, and the cost of mining engineering, as well as improve mine safety levels.
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spelling pubmed-99581102023-02-26 Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics Li, Hewan Liu, Jian Wang, Laigui Ren, Tianjiao Sci Rep Article Aiming to bypass the inability to directly observe the evolution process of rock internal deformation and fracture, this paper proposes that rock samples with different inclination angles can be analyzed from the standpoint of energy, using the bond-base peridynamic theory and the PMB model of brittle materials, combined with laboratory experiments. The whole process of shearing is analyzed, and the LAMMPS software is used to simulate the internal energy change of rock-like materials under shear conditions, while the damage evolution law of samples with different dip angles is studied from macro and micro perspectives. The result shows that prefabricated cracks and the inclination of cracks are important factors for specimen damage, a finding that has important theoretical value for rock mechanics research. The research results can reduce the occurrence of rock burst accidents, the difficulty of mine support, and the cost of mining engineering, as well as improve mine safety levels. Nature Publishing Group UK 2023-02-24 /pmc/articles/PMC9958110/ /pubmed/36828861 http://dx.doi.org/10.1038/s41598-023-30394-5 Text en © The Author(s) 2023 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, Hewan
Liu, Jian
Wang, Laigui
Ren, Tianjiao
Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title_full Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title_fullStr Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title_full_unstemmed Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title_short Study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
title_sort study on mechanical properties and energy change of rock materials in whole splitting process based on peridynamics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9958110/
https://www.ncbi.nlm.nih.gov/pubmed/36828861
http://dx.doi.org/10.1038/s41598-023-30394-5
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