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

Xuzhen He, Wei Wu, Dichuan Zhang, Jong Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publicationSpringer Series in Geomechanics and Geoengineering
EditorsWei Wu, Hai-Sui Yu
PublisherSpringer Verlag
Pages157-160
Number of pages4
Edition216849
ISBN (Print)9783319971117
DOIs
Publication statusPublished - 2018
EventChina-Europe Conference on Geotechnical Engineering, 2016 - Vienna, Austria
Duration: Aug 13 2016Aug 16 2016

Publication series

NameSpringer Series in Geomechanics and Geoengineering
Number216849
ISSN (Print)1866-8755
ISSN (Electronic)1866-8763

Other

OtherChina-Europe Conference on Geotechnical Engineering, 2016
CountryAustria
CityVienna
Period8/13/168/16/16

Keywords

  • DEM
  • Granular columns

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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