An implicit particle-in-cell method for granular materials

  • Authors:

  • S. J. Cummins;J. U. Brackbill

  • Affiliations:

  • Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico;Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2002

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Abstract

An implicit-in-time method for granular materials is described. The method combines the material point method, a first-order contact algorithm, and a Newton-Krylov equation solver to give improved energy conservation, stabilization of the finite-grid-instability, and the correct description of collisions between grains.