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Component Analysis of Granular Friction

In: Traffic and Granular Flow’05

Author

Listed:
  • 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
    Università “La Sapienza”, Dipartimento di Fisica)

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.

Suggested Citation

  • Fergal Dalton & Alberto Petri & Giorgio Pontuale & Luciano Pietronero, 2007. "Component Analysis of Granular Friction," Springer Books, in: Andreas Schadschneider & Thorsten Pöschel & Reinhart Kühne & Michael Schreckenberg & Dietrich E. Wol (ed.), Traffic and Granular Flow’05, pages 101-110, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-47641-2_8
    DOI: 10.1007/978-3-540-47641-2_8
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