Slow compaction of granular systems

P Ribière (1) , P Philippe (2) , P Richard (1) , Renaud Delannay (1) , Daniel Bideau (1)

1 GMCM - Groupe matière condensée et matériaux
2 CEMAGREF - Centre national du machinisme agricole, du génie rural, des eaux et forêts

The dynamics of granular compaction under vertical tapping is experimentally and numerically studied for isotropic and anisotropic grains. It is shown that if convection takes place in the medium, it has a strong influence on the compaction dynamics. The local behaviour of the grains during compaction and the consequences for the global properties of the medium are investigated.

Mots clés: sintering; compaction; powder metallurgy; Powder processing; mechanical alloying and granulation; Porous materials; granular materials

Domaines: Autre [cond-mat.other]

P Ribière, P Philippe, P Richard, Renaud Delannay, Daniel Bideau. Slow compaction of granular systems. Journal of Physics: Condensed Matter, 2005, 17 (24), pp.2743-2754. ⟨10.1088/0953-8984/17/24/024⟩. ⟨hal-01127763⟩