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A model for the packing of irregularly shaped grains

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  • Mounfield, C.C.
  • Edwards, S.F.

Abstract

In this paper we will attempt to address the problem of the packing properties of granular materials composed of irregularly shaped grains (using configurational statistical mechanics). In particular, we will develop a model for a system of irregular grains based upon perturbing a packing of mono- or poly-disperse spheres. In the mono-disperse case we will show that the system packs less densely than a packing of perfect spheres, except when local correlations between configurations of grains are taken into account. The opposite is found to be true for a perturbation expansion based upon poly-disperse spheres. Finally we will show that for a bi-disperse packing of spheres phase segregation occurs for any size ratio and discuss whether this is to be expected.

Suggested Citation

  • Mounfield, C.C. & Edwards, S.F., 1994. "A model for the packing of irregularly shaped grains," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 210(3), pages 301-316.
    • Handle: RePEc:eee:phsmap:v:210:y:1994:i:3:p:301-316
    DOI: 10.1016/0378-4371(94)90078-7
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    References listed on IDEAS

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    1. Lubrano, Michel & Shadman-Mehta, Fatemeh & Sneessens, Henri R, 1996. "Real Wages, Quantity Constraints and Equilibrium Unemployment: Belgium, 1955-1988," Empirical Economics, Springer, vol. 21(3), pages 427-457.
    2. Edwards, S.F. & Oakeshott, R.B.S., 1989. "Theory of powders," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 157(3), pages 1080-1090.
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