Evolution of a contact force network in a 2D granular assembly: an examination using neutron diffraction

Title: Evolution of a contact force network in a 2D granular assembly: an examination using neutron diffraction
Creator: Wensrich, C. M.; Kisi, E. H.; Luzin, V.; Rawson, A.; Kirstein, O.
Relation: ARC.DP130104290 http://purl.org/au-research/grants/arc/DP130104290
Relation: Granular Matter Vol. 23, Issue 3, no. 70
Publisher Link: http://dx.doi.org/10.1007/s10035-021-01135-0
Publisher: Springer
Resource Type: journal article
Date: 2021
Description: Results from an experiment involving the measurement of individual particle stresses in a two-dimensional mono-disperse assembly of 579 ball bearings are presented. Using a combination of neutron radiography and strain scanning techniques, the full bi-axial stress state was obtained for each particle from which the full contact force network could be established. The evolution of this network was examined over a series of five monotonically increasing loads. Significant levels of inhomogeneity were observed in the form of prominent force chains that showed complex interaction with regions of order and disorder within the assembly. A reduction in the level of inhomogeneity with increasing load was also observed.
Subject: force chains; granular mechanics; neutron imaging; neutron diffraction
Identifier: http://hdl.handle.net/1959.13/1437602
Identifier: uon:40402
Identifier: ISSN:1434-5021
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format