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Grain-based characterisation and acoustic wave propagation in a sand packing subject to triaxial compression

Saadatfar, Mohammad; Francois, Nicolas; Arad, Alon; Madadi, Mahyar; Sheppard, Adrian; Senden, Tim; Knackstedt, Mark

Description

This paper presents a study of 3D deformation process in a dry packing of Ottawa sand. X-ray microtomography is used to acquire scans of a triaxial test of the sample at five axial stress levels. Using 3D image analysis we are able to resolve particle scale features. Particle tracking combined with finite element simulations reveal that the rotational transformation of particles is one of the primary mechanisms of elastic energy dissipation at the grain scale. By analysing grain contact...[Show more]

CollectionsANU Research Publications
Date published: 2013-06-18
Type: Conference paper
URI: http://hdl.handle.net/1885/11941
Source: AIP Conference Proceedings
DOI: 10.1063/1.4811995

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