We perform an analysis of the stick-slip properties of a granular bed. The granulate is confined to a circular channel and sheared by an overhead top plate with a stick-slip motion. We attempt to decompose the frictional torque F-f subtended by the medium into its independent components by graphical and phenomenological analyses. We find clear functional dependence on the position, velocity and acceleration of the plate and the residual torque signal shows some dependence on the properties of the stick events. This article is related to that of Baldassarri et al. in these proceedings.
Component analysis of granular friction / Fergal, Dalton; Alberto, Petri; Giorgio, Pontuale; Pietronero, Luciano. - (2007), pp. 101-110. (Intervento presentato al convegno 6th International Conference on Traffic and Granular Flow tenutosi a Berlin; Germany nel OCT 10-12, 2005) [10.1007/978-3-540-47641-2_8].
Component analysis of granular friction
PIETRONERO, Luciano
2007
Abstract
We perform an analysis of the stick-slip properties of a granular bed. The granulate is confined to a circular channel and sheared by an overhead top plate with a stick-slip motion. We attempt to decompose the frictional torque F-f subtended by the medium into its independent components by graphical and phenomenological analyses. We find clear functional dependence on the position, velocity and acceleration of the plate and the residual torque signal shows some dependence on the properties of the stick events. This article is related to that of Baldassarri et al. in these proceedings.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
