On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks

Natural fractured rocks usually contain background granular media and multi-scale fractures. The coordination number is a crucial factor to characterize the connection of microstructural elements. The determination of coordination numbers for modeling fractured rocks is essential to interpret the di...

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Autores principales:	Xiaoyi Xu, Li-Yun Fu, Ning Liu, Tongcheng Han
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	numerical simulation crack information inversion coordination number measurement window DEM-DFN model Science Q
Acceso en línea:	https://doaj.org/article/f5c8b50fce61464281f13e233aa8ad00
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id	oai:doaj.org-article:f5c8b50fce61464281f13e233aa8ad00
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spelling	oai:doaj.org-article:f5c8b50fce61464281f13e233aa8ad002021-11-08T17:53:43ZOn the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks2296-646310.3389/feart.2021.665275https://doaj.org/article/f5c8b50fce61464281f13e233aa8ad002021-07-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.665275/fullhttps://doaj.org/toc/2296-6463Natural fractured rocks usually contain background granular media and multi-scale fractures. The coordination number is a crucial factor to characterize the connection of microstructural elements. The determination of coordination numbers for modeling fractured rocks is essential to interpret the distribution of cracks related to micromechanical properties. We have built a consistent workflow of discrete element models (DEMs) coupled with discrete fracture networks (DFNs). This DEM-DFN model could provide a simple formulation for high calculation efficiency to model a more realistic and detailed description of fracture system. A series of numerical experiments are set up, aiming to correlate window radius, particle size, and crack length, which will benefit the window selection for measuring coordination numbers based on the crack characteristics. The coordination number determined in the DEM-DFN modeling can be used to identify crack patterns in the spatial distribution.Xiaoyi XuXiaoyi XuLi-Yun FuNing LiuTongcheng HanFrontiers Media S.A.articlenumerical simulationcrack information inversioncoordination numbermeasurement windowDEM-DFN modelScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	numerical simulation crack information inversion coordination number measurement window DEM-DFN model Science Q
spellingShingle	numerical simulation crack information inversion coordination number measurement window DEM-DFN model Science Q Xiaoyi Xu Xiaoyi Xu Li-Yun Fu Ning Liu Tongcheng Han On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
description	Natural fractured rocks usually contain background granular media and multi-scale fractures. The coordination number is a crucial factor to characterize the connection of microstructural elements. The determination of coordination numbers for modeling fractured rocks is essential to interpret the distribution of cracks related to micromechanical properties. We have built a consistent workflow of discrete element models (DEMs) coupled with discrete fracture networks (DFNs). This DEM-DFN model could provide a simple formulation for high calculation efficiency to model a more realistic and detailed description of fracture system. A series of numerical experiments are set up, aiming to correlate window radius, particle size, and crack length, which will benefit the window selection for measuring coordination numbers based on the crack characteristics. The coordination number determined in the DEM-DFN modeling can be used to identify crack patterns in the spatial distribution.
format	article
author	Xiaoyi Xu Xiaoyi Xu Li-Yun Fu Ning Liu Tongcheng Han
author_facet	Xiaoyi Xu Xiaoyi Xu Li-Yun Fu Ning Liu Tongcheng Han
author_sort	Xiaoyi Xu
title	On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
title_short	On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
title_full	On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
title_fullStr	On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
title_full_unstemmed	On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks
title_sort	on the determination of coordination numbers of coupled dem-dfn model for modeling fractured rocks
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/f5c8b50fce61464281f13e233aa8ad00
work_keys_str_mv	AT xiaoyixu onthedeterminationofcoordinationnumbersofcoupleddemdfnmodelformodelingfracturedrocks AT xiaoyixu onthedeterminationofcoordinationnumbersofcoupleddemdfnmodelformodelingfracturedrocks AT liyunfu onthedeterminationofcoordinationnumbersofcoupleddemdfnmodelformodelingfracturedrocks AT ningliu onthedeterminationofcoordinationnumbersofcoupleddemdfnmodelformodelingfracturedrocks AT tongchenghan onthedeterminationofcoordinationnumbersofcoupleddemdfnmodelformodelingfracturedrocks
_version_	1718441533949083648

On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks

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