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RESEARCH PRODUCT
Dynamic Self-assembly of Non-Brownian Spheres.
O. CarventeJ. Marcos SalazarJ. Carlos Ruiz-suárezFrancisco PeñuñuriJ. Marc Simonsubject
PhysicsCondensed matter physicsCoordination numberPhysicsQC1-999Crystal structureAtomic packing factor01 natural sciencesIsothermal process010305 fluids & plasmasMolecular dynamics0103 physical sciencesSPHERESSelf-assemblyStatistical physics[PHYS.COND.CM-SM]Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]010306 general physicsBrownian motiondescription
International audience; Granular self-assembly of confined non-Brownian spheres under gravity is studied by Molecular Dynamics simulations. Starting from a disordered phase, dry or cohesive spheres organize, by vibrational an-nealing into BCT or FCC structures, respectively. During the self-assembling process, isothermal and isodense points are observed. The existence of such points indicates that both granular temperature and packing fraction undergo an inversion process. Around the isothermal point, a sudden growth of beads having the maximum coordination number takes place. We show by a density fluctuation analysis that a transition form a disordered phase to a crystalline structure may be associated to a first-order transition.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 | EPJ Web of Conferences |