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Master thesis

Simulations Numériques en dynamique moléculaire de milieux granulaires vibrés

Abstract : Granular medias gather together several uncommon behavioral properties. They can behave like a solid, a liquid or a gas depending on the stress that is applied to them. The relation between the stress and the behavior is far from being as simple as it is with classical materials. The Lemta research team focuses on the rheology of granular medias that are composed of small spherical beads. Experimental research allowed on one hand to point out a diffusion movement in spherical particles subjected to vibration, and on the other hand to show a lubrication effect due to the presence of an interstitial fluid. The aim of this internship is to develop numerical tools in a way to observe these effects. The following study suggests a numerical approach in Molecular Dynamic of granular medias composed of spherical beads subjected to vibration. We will observe that, thanks to a computation of the interaction forces between particles, it is possible to get macroscopic data that fit with the experimental results from the literature.
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Master thesis
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http://docnum.univ-lorraine.fr/public/BUS_M_2013_HAAG_JEREMIE.pdf
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https://hal.univ-lorraine.fr/hal-01862187
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  • HAL Id : hal-01862187, version 1

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Jérémie Haag. Simulations Numériques en dynamique moléculaire de milieux granulaires vibrés. Génie des procédés. 2013. ⟨hal-01862187⟩

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