A multibody meshfree strategy for the simulation of highly deformable granular materials
Résumé
In this paper, a multibody meshfree framework is proposed for the simulation of granular materials undergoing deformations at the grain scale. This framework is based on an implicit solving of the mechanical problem based on a weak form written on the domain defined by all the grains composing the granular sample. Several technical choices, related to the displacement field interpolation, to the contact modelling, and to the integration scheme used to solve the dynamic equations, are explained in details. A first implementation is proposed, under the acronym Multibody ELement-free Open code for DYnamic simulation (MELODY), and is made available for free download. Two numerical examples are provided to show the convergence and the capability of the method.
Domaines
Sciences de l'ingénieur [physics]
Fichier principal
Mollon2016.pdf (730.16 Ko)
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nme5258-sup-0001-supplementary1.avi (2.83 Mo)
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nme5258-sup-0002-supplementary2.avi (46.39 Mo)
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nme5258-sup-0003-supplementary3.avi (7.28 Mo)
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