AI Article Synopsis
- This study examines how normal contact forces in 3D packings of compressible granular materials behave based on grain deformation.
- As grains deform less, the probability distribution of forces shows a small peak below the mean and an exponential tail for higher forces.
- With increased deformation, the peak at the mean force becomes more prominent, and the exponential tail steepens, indicating stronger correlations between grain deformation and force distribution.
Article Abstract
We present an experimental investigation of the probability distribution of normal contact forces, P(F), at the bottom boundary of static three-dimensional packings of compressible granular materials. We find that the degree of deformation of individual grains plays a large role in determining the form of this distribution. For small amounts of deformation we find a small peak in P(F) below the mean force with an exponential tail for forces larger than the mean force. As the degree of deformation is increased the peak at the mean force grows in height and the slope of the exponential tail increases.
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| http://dx.doi.org/10.1103/PhysRevE.66.040301 | DOI Listing |
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