https://doi.org/10.1051/epjconf/201714012002
On the relevance of the meso-scale in an upscaling approach for granular materials
University of Lyon, LTDS - CNRS UMR 5513, Ecole Centrale de Lyon, 36 avenue Guy de Collongue, Ecully 69134 Cedex, France
* e-mail: helene.magoariec@ec-lyon.fr
Published online: 30 June 2017
This paper deals with the interest of upscaling from a meso-scale understand and model the mechanical behavior of granular materials. The meso-domains associated to the meso-scale are defined as closed loops of particles in contact. Six sets of meso-domains with different local textures called “phases” have been defined. The analysis of the behavior of these phases through 2D DEMsimulations of a compression test followed by an extension test has allowed the discriminant evolution of the structure and then the role of the different phases at the meso-scale to be evidenced. Constitutive modeling of granular materials can advantageously be developed from the meso-scale where the principles of continuum mechanics apply.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
