On collapse of 2D granular columns: A grain-scale investigation

Xuzhen He; Wei Wu; Dichuan Zhang; Jong Kim

doi:10.1007/978-3-319-97112-4_35

On collapse of 2D granular columns: A grain-scale investigation

Xuzhen He, Wei Wu, Dichuan Zhang, Jong Kim

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

This study uses the Discrete Element Method (DEM) to investigate the grain-scale mechanisms that give rise to the diverse flow phenomena of granular material, particularly the collapse of granular columns. The small-scale 2D experiments conducted with aluminium rods are used as benchmarks. It is found that the stiffness or the viscous dissipation at the contacts are not important factors to influence the kinetic, but the apparent friction angle is the dominant one, which is contributed by several sources.

Original language	English
Pages (from-to)	157-160
Number of pages	4
Journal	Springer Series in Geomechanics and Geoengineering
Issue number	216849
DOIs	https://doi.org/10.1007/978-3-319-97112-4_35
Publication status	Published - Jan 1 2018
Event	China-Europe Conference on Geotechnical Engineering, 2016 - Vienna, Austria Duration: Aug 13 2016 → Aug 16 2016

Keywords

DEM
Granular columns

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Mechanics of Materials

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AU - Zhang, Dichuan

AU - Kim, Jong

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