| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 15031 | |
| Number of page(s) | 4 | |
| Section | Particle simulations and particle-based methods | |
| DOI | https://doi.org/10.1051/epjconf/201714015031 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714015031
Analysis of dense packing of highly deformed grains
Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier, CNRS, Montpellier, France
* e-mail: thi-lo.vu@umontpellier.fr
** e-mail: saeid.nezamabadi@umontpellier.fr
*** e-mail: jb@jonathan-bares.eu
**** e-mail: serge.mora@umontpellier.fr
Published online: 30 June 2017
This paper concerns modeling of soft granular materials in which the grains are highly deformable. In order to simulate these materials, an approach based on an implicit formulation of the Material Point Method in the context of the finite strain theory, allowing for large deformations of grains, coupled with the Contact Dynamics method for the treatment of unilateral frictional contacts between grains, is proposed. In this context, the Mooney-Rivlin constitutive relationship is applied with two different set of elastic parameters. Considering these two material behaviors, a uniaxial compression of 2D soft granular packings is analyzed. The stress-strain relation and the evolution of the packing fraction as well as of the connectivity of the grains are discussed.
© The Authors, published by EDP Sciences, 2017
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