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COHESIVE POWDER COMPACTION UNDER VIBRATIONS : SINGULAR BEHAVIOR AND ATTEMPT TO EXPLAIN

Jean-Eric Mathonnet 1 Philippe Sornay 1 Blanche Dalloz 2 Maxime Nicolas 2
1 LCU - Laboratoire des Combustibles Uranium
SA3E - Service d'Analyses, d'Elaboration, d'Expérientations et d'Examens des combustibles : DEN/DEC/SA3E
Abstract : We report the influence of horizontal vibrations on the time-evolution of the density of a very cohesive powder. For a wide range of vibration conditions, the kinetics of compaction presents a two timescales behavior compared to model materials. A simple stochastic model, based on clusters of grains, has been developed to understand the compaction process, and a new empirical law is proposed to describe the evolution of the packing fraction φ.
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Jean-Eric Mathonnet, Philippe Sornay, Blanche Dalloz, Maxime Nicolas. COHESIVE POWDER COMPACTION UNDER VIBRATIONS : SINGULAR BEHAVIOR AND ATTEMPT TO EXPLAIN. International Conference on Theoretical and Applied Mechanics (XXIV), Aug 2016, Montréal, Canada. ⟨hal-01432885⟩

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