EPJ Web Conf.
Volume 249, 2021Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
|Number of page(s)||4|
|Published online||07 June 2021|
Dynamic view of critical state regime in granular materials: a mesoscale perspective
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: firstname.lastname@example.org
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
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