Force propagation in isostatic granular packs.

  title={Force propagation in isostatic granular packs.},
  author={Nathan W Krapf},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={86 2 Pt 1},
  • N. Krapf
  • Published 21 May 2012
  • Geology
  • Physical review. E, Statistical, nonlinear, and soft matter physics
We investigate how forces spread through frictionless granular packs at the jamming transition. Previous work has indicated that such packs are isostatic, and thus obey a null stress law which, independent of the packing history, causes rays of stress to propagate away from a point force at oblique angles. Prior verifications of the null stress law have used a sequential packing method which yields packs with anisotropic packing histories. We create packs without this anisotropy, and then later… 

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