%0 Journal Article
%T Rheology of soft granular materials: uniaxial compression
%+ Physique et Mécanique des Milieux Divisés (PMMD)
%+ Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE)
%+ University of Leeds
%A Nezamabadi, Saeid
%A Radjai, Farhang
%A Mora, Serge
%A Delenne, Jean-Yves
%A Ghadiri, Mojtaba
%< avec comité de lecture
%@ 2100-014X
%J EPJ Web of Conferences
%I EDP Sciences
%S Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media
%V 249
%P 05008
%8 2021
%D 2021
%R 10.1051/epjconf/202124905008
%Z Physics [physics]/Mechanics [physics]Journal articles
%X Soft granular materials are assemblies of highly deformable grains interacting via surface forces. The large grain deformations of these materials differ them from hard granular systems, in which, their behaviors are essentially governed by grain rearrangements. In this paper, we study the uniaxial compression of soft granular materials using a numerical approach based on the Material Point Method allowing for large grain deformations, coupled with the Contact Dynamics method for the treatment of unilateral frictional contacts between grains. Considering the neo-Hookean and elasto-plastic grains, the compaction of 2D soft granular packings is analyzed. We focus essentially on the evolution of the packing vertical stress as a function of the packing fraction and the predictive models are proposed.
%G English
%2 https://hal.science/hal-03453948/document
%2 https://hal.science/hal-03453948/file/epjconf_pg2021_05008.pdf
%L hal-03453948
%U https://hal.science/hal-03453948
%~ CIRAD
%~ CNRS
%~ IATE
%~ LMGC
%~ AGREENIUM
%~ MIPS
%~ BA
%~ UNIV-MONTPELLIER
%~ INSTITUT-AGRO-MONTPELLIER
%~ INRAE
%~ TEST-HALCNRS
%~ INRAEOCCITANIEMONTPELLIER
%~ UM-2015-2021
%~ RESEAU-EAU
%~ INSTITUT-AGRO