Force distributions in a triangular lattice of rigid bars release_xemd4rodqbfihh4diwza4odryq

by Brian P. Tighe, Joshua E. S. Socolar, David G. Schaeffer, W. Garrett Mitchener, Mark L. Huber

Released as a article .

2005  

Abstract

We study the uniformly weighted ensemble of force balanced configurations on a triangular network of nontensile contact forces. For periodic boundary conditions corresponding to isotropic compressive stress, we find that the probability distribution for single-contact forces decays faster than exponentially. This super-exponential decay persists in lattices diluted to the rigidity percolation threshold. On the other hand, for anisotropic imposed stresses, a broader tail emerges in the force distribution, becoming a pure exponential in the limit of infinite lattice size and infinitely strong anisotropy.
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Date   2005-04-29
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