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Molecular Dynamics Simulation of Cohesive Granular Materials

In: Traffic and Granular Flow ’99

Author

Listed:
  • A. Schinner

    (Universitätsplatz 2, FNW/ITP Otto-von-Guericke University Magdeburg)

  • H.-G. Matuttis

    (University of Stuttgart, ICA I)

Abstract

The experimental motivation for this study are recent publications on cohesive granular materials [2–4,10]. Our central question is, in which regime and by which mechanism the the movement of grains changes from movement of independent particles to a movement of small clusters with increasing cohesion. Cohesion introduces an additional length scale, so that the effects become size-dependent. The cohesive force acting on a volume element of size I x I x I is proportional to its surface, or ∝ I2. The repulsive force generated by the mass of the volume element is ∝ I3. The strength of the cohesion and the density of the particles determine the size for which repulsion and cohesion are in equilibrium for a certain characteristic length d.

Suggested Citation

  • A. Schinner & H.-G. Matuttis, 2000. "Molecular Dynamics Simulation of Cohesive Granular Materials," Springer Books, in: Dirk Helbing & Hans J. Herrmann & Michael Schreckenberg & Dietrich E. Wolf (ed.), Traffic and Granular Flow ’99, pages 505-510, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-59751-0_56
    DOI: 10.1007/978-3-642-59751-0_56
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