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

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dc.contributor.authorWensrich, CMen_AU
dc.contributor.authorKisi, EHen_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorRawson, Aen_AU
dc.contributor.authorKirstein, Oen_AU
dc.date.accessioned2026-08-17T02:29:02Zen_AU
dc.date.issued2021-08-22en_AU
dc.date.statistics2026-01-15en_AU
dc.description.abstractResults 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. Copyright © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.en_AU
dc.description.sponsorshipThe Authors would like to acknowledge financial assistance provided by the Australian Research Council (DP130104290). Access to the KOWARI and DINGO instruments was made possible by the Australian Centre for Neutron Scattering (Proposal PP2881).en_AU
dc.identifier.articlenumber70en_AU
dc.identifier.citationWensrich, C. M., Kisi, E. H., Luzin, V., Rawson, A., & Kirstein, O. (2021). Evolution of a contact force network in a 2D granular assembly: an examination using neutron diffraction. Granular Matter, 23(3), 70 doi:10.1007/s10035-021-01135-0en_AU
dc.identifier.issn1434-5021en_AU
dc.identifier.issn1434-7636en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleGranular Matteren_AU
dc.identifier.urihttps://doi.org/10.1007/s10035-021-01135-0en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/17330en_AU
dc.identifier.volume23en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectParticlesen_AU
dc.subjectEvolutionen_AU
dc.subjectNeutron radiographyen_AU
dc.subjectChainsen_AU
dc.subjectStressesen_AU
dc.titleEvolution of a contact force network in a 2D granular assembly: an examination using neutron diffractionen_AU
dc.typeJournal Articleen_AU

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