@inproceedings{4a7fa429394046838abb9a619229dc0e,
title = "Grain-based characterisation and acoustic wave propagation in a sand packing subject to triaxial compression",
abstract = "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 orientation, we show that stress induced anisotropy is spatially correlated to the compressional elastic wave.",
keywords = "finite element simulations, sand packing, triaxial compaction, x-ray computed tomography",
author = "Mohammad Saadatfar and Nicolas Francois and Alon Arad and Mahyar Madadi and Adrian Sheppard and Tim Senden and Mark Knackstedt",
year = "2013",
doi = "10.1063/1.4811995",
language = "English",
isbn = "9780735411661",
series = "AIP Conference Proceedings",
pages = "571--574",
booktitle = "Powders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media",
note = "7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013 ; Conference date: 08-07-2013 Through 12-07-2013",
}