Component Analysis of Granular Friction

Fergal Dalton, Alberto Petri, Giorgio Pontuale and Luciano Pietronero
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Fergal Dalton: CNR Area Ricerca Tor Vergata, Istituto dei Sistemi Complessi
Alberto Petri: CNR Area Ricerca Tor Vergata, Istituto dei Sistemi Complessi
Giorgio Pontuale: CNR Area Ricerca Tor Vergata, Istituto dei Sistemi Complessi
Luciano Pietronero: CNR Area Ricerca Tor Vergata, Istituto dei Sistemi Complessi

A chapter in Traffic and Granular Flow’05, 2007, pp 101-110 from Springer

Abstract: Summary 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.

Keywords: Granular Material; Shear Velocity; Angular Displacement; Granular Medium; Independent Component Analysis (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1007/978-3-540-47641-2_8

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