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A Numerical Study of Compaction of Dry Granular Material

Published online by Cambridge University Press:  11 February 2011

Deborah Sulsky
Deborah Sulsky*
Affiliation:
Department of Mathematics and Statistics, Department of Mechanical Engineering, University of New Mexico, Albuquerque, NM 87131, U.S.A.
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Abstract

The material-point method is used to examine numerically the macroscopic stress-strain response of a granular sample under compression. The simulations reproduce experimental observations of the large stiffening that occurs as the granular bed becomes packed. We also show the network of force chains that forms and how the character of contacts between grains changes for large deformations. Finally, we examine the probability distribution of forces and observe exponential distributions above the mean with a small peak at the mean for small deformations, and a transition to a larger peak at larger deformations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 759: Symposium MM – Granular Material-Based Technologies , 2002 , MM3.1
Copyright
Copyright © Materials Research Society 2003

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References

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