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Hybrid finite-discrete element modelling of dynamic fracture of rocks with various geometries

Citation

Liu, HY, Hybrid finite-discrete element modelling of dynamic fracture of rocks with various geometries, Applied Mechanics and Materials, 256-259 pp. 183-186. ISSN 1662-7482 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 Trans Tech Publications

DOI: doi:10.4028/www.scientific.net/AMM.256-259.183

Abstract

The hybrid finite-discrete element method Y-2D/3D IDE is applied to model the dynamic fracture of rock specimens with various geometries during impacting a fixed rigid surface. It is found that the modelled primary fractures are highly dependent on the rock geometry determining the weakest plane for a given impact, which agrees well with others' experimental and SPH numerical results. Compared with others' SPH results, Y-2D/3D IDE better simulates the actinomorphic pattern of primary fractures around the impact area and the secondary & tertiary fractures observed in the dynamic fracture experiments. It is concluded that the proposed Y-2D/3D IDE is a valuable tool to model rock dynamic fracture compared with FEM and DEM.

Item Details

Item Type:Refereed Article
Keywords:FEM, DEM, hybrid finite-discrete element method, numerical modelling, dynamic fracture, rock
Research Division:Engineering
Research Group:Resources Engineering and Extractive Metallurgy
Research Field:Geomechanics and Resources Geotechnical Engineering
Objective Division:Construction
Objective Group:Construction Processes
Objective Field:Civil Construction Processes
Author:Liu, HY (Dr Hong Liu)
ID Code:87969
Year Published:2013
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2013-12-20
Last Modified:2014-06-24
Downloads:2 View Download Statistics

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