2008/06/30 by Thibaut Divoux, H. Gayvallet, Hervé Gayvallet +1 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Amplitude #Column (typography) #Compaction #Composite material #Connection (principal bundle) #Creep #Geology #Geometry #Geotechnical engineering #Granular flow and fluidized beds #Granular material #Material Dynamics and Properties #Materials science #Mechanics #Optics #Physics #Pile #Settling #Soil and Unsaturated Flow #Temperature cycling #Thermal #Thermodynamics #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.101.148303
published as Phys. Rev. Lett. 101, 148303 (2008) · 4 pages, 5 figures, accepted for publication in Physical Review Letters (05sep08)
arxiv created 2008/09/18 · openalex publication_date 2008/10/02 · arxiv updated 2013/07/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report a time-resolved study of the dynamics associated with the slow compaction of a granular column submitted to thermal cycles. The column height displays a complex behavior: for a large amplitude of the temperature cycles, the granular column settles continuously, experiencing a small settling at each cycle. By contrast, for a small-enough amplitude, the column exhibits a discontinuous and intermittent activity: successive collapses are separated by quiescent periods whose duration is exponentially distributed. We then discuss potential mechanisms which would account for both the compaction and the transition at finite amplitude.