Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength

The joint roughness has an influence on the uniaxial compressive strength (UCS) and characteristic strength of the rock, but the relationship of the influence is yet to be obtained. In this article, the influence of the size of the rock with rough joints on the UCS and the influence of the size effe...

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Autores principales:	Hu Gaojian, Li Yu, Ma Gang
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	roughness uniaxial compressive strength size effect mathematical model Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/1841a78168bf45a4bfbd24e0f96d4df0
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id	oai:doaj.org-article:1841a78168bf45a4bfbd24e0f96d4df0
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spelling	oai:doaj.org-article:1841a78168bf45a4bfbd24e0f96d4df02021-12-05T14:11:04ZResearch on the size effect of roughness on rock uniaxial compressive strength and characteristic strength2191-035910.1515/secm-2021-0058https://doaj.org/article/1841a78168bf45a4bfbd24e0f96d4df02021-11-01T00:00:00Zhttps://doi.org/10.1515/secm-2021-0058https://doaj.org/toc/2191-0359The joint roughness has an influence on the uniaxial compressive strength (UCS) and characteristic strength of the rock, but the relationship of the influence is yet to be obtained. In this article, the influence of the size of the rock with rough joints on the UCS and the influence of the size effect of roughness on the UCS are studied by establishing 11 sets of numerical simulation schemes, a total of 30 working conditions. The stress–strain curve law of rocks with different roughness and sizes is analyzed, and the relationship between UCS and the size of rock with rough joints, joint roughness coefficient (JRC), is respectively proposed. Mathematical models of rock characteristic size of UCS, characteristic strength of the rock, and JRC are established, respectively.Hu GaojianLi YuMa GangDe Gruyterarticleroughnessuniaxial compressive strengthsize effectmathematical modelMaterials of engineering and construction. Mechanics of materialsTA401-492ENScience and Engineering of Composite Materials, Vol 28, Iss 1, Pp 613-627 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	roughness uniaxial compressive strength size effect mathematical model Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	roughness uniaxial compressive strength size effect mathematical model Materials of engineering and construction. Mechanics of materials TA401-492 Hu Gaojian Li Yu Ma Gang Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
description	The joint roughness has an influence on the uniaxial compressive strength (UCS) and characteristic strength of the rock, but the relationship of the influence is yet to be obtained. In this article, the influence of the size of the rock with rough joints on the UCS and the influence of the size effect of roughness on the UCS are studied by establishing 11 sets of numerical simulation schemes, a total of 30 working conditions. The stress–strain curve law of rocks with different roughness and sizes is analyzed, and the relationship between UCS and the size of rock with rough joints, joint roughness coefficient (JRC), is respectively proposed. Mathematical models of rock characteristic size of UCS, characteristic strength of the rock, and JRC are established, respectively.
format	article
author	Hu Gaojian Li Yu Ma Gang
author_facet	Hu Gaojian Li Yu Ma Gang
author_sort	Hu Gaojian
title	Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
title_short	Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
title_full	Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
title_fullStr	Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
title_full_unstemmed	Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
title_sort	research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/1841a78168bf45a4bfbd24e0f96d4df0
work_keys_str_mv	AT hugaojian researchonthesizeeffectofroughnessonrockuniaxialcompressivestrengthandcharacteristicstrength AT liyu researchonthesizeeffectofroughnessonrockuniaxialcompressivestrengthandcharacteristicstrength AT magang researchonthesizeeffectofroughnessonrockuniaxialcompressivestrengthandcharacteristicstrength
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Research on the size effect of roughness on rock uniaxial compressive strength and characteristic strength

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