https://doi.org/10.1051/epjconf/202124911011
Dynamic view of critical state regime in granular materials: a mesoscale perspective
1
Université Grenoble Alpes, INRAE, UR ETGR, 2 rue de la Papeterie-BP 76, 38402 St-Martin-d’Heres, France
2
INRAE, Aix-Marseille University, UR RECOVER, 3275 Rte Cézanne, CS 40061, 13182 Aix-en-Provence Cedex 5, France
3
BRGM (French Geological Survey), Risk and Prevention Division, Orléans, France
4
Department of Civil and Environmental Engineering, the Hong Kong Polytechnic University, Hong Kong, China
5
Research Institute of Civil Engineering and Mechanics (GeM), UMR CNRS 6183, Ecole Centrale de Nantes, Nantes, France
* e-mail: na.deng@inrae.fr
Published online: 7 June 2021
We revisit the Critical State (CS) in a dynamic perspective at a mesoscopic scale to enrich the classical view of the critical state as a steady state. The dynamics of meso-structures has been characterized by recording generating and vanishing processes in discrete element simulations. Our results suggest that meso-structures have a short but regular lifespan at critical state along a biaxial compression loading path.
A video is available at https://doi.org/10.48448/zfqx-ra44
© The Authors, published by EDP Sciences, 2021
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.
