D'Anna, GianfrancoSellerio, Alessandro LuigiMari, DanieleGremaud, Gerard2013-10-012013-10-012013-10-01201310.1088/1742-5468/2013/05/P05009https://infoscience.epfl.ch/handle/20.500.14299/95417WOS:000319737300010We study the jamming process arising in granular systems subjected to decreasing external vibration, which has features similar to the cooling of glass-forming liquids. We modify the friction between grains and observe that jamming occurs 'more easily' for grains with higher surface roughness. To understand the observed behavior we present a detailed analysis of the elastic and tribological phenomena at the length scale of the grains in contact and provide a qualitative model, where the Hertzian nonlinear elastic contact between grains plays a relevant role.granular matterfrictionslow relaxation and glassy dynamicsextreme value statisticstext::journal::journal article::research article