The Spot Model for random-packing dynamics

  title={The Spot Model for random-packing dynamics},
  author={Martin Z. Bazant},
The diffusion and flow of amorphous materials, such as glasses and granular materials, has resisted a simple microscopic description, analogous to defect theories for crystals. Early models were based on either gas-like inelastic collisions or crystal-like vacancy diffusion, but here we propose a cooperative mechanism for dense random-packing dynamics, based on diffusing ‘‘spots’’ of interstitial free volume. Simulations with the Spot Model can efficiently generate realistic flowing packings… CONTINUE READING
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A theory of cooperative diffusion in dense granular flow, unpublished

  • M. Z. Bazant, J. Choi, C. H. Rycroft, R. R. Rosales, A. Kudrolli
  • 2005
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