English

Force distributions near the jamming and glass transitions

Soft Condensed Matter 2009-10-31 v2 Statistical Mechanics

Abstract

We calculate the distribution of interparticle normal forces P(F)P(F) near the glass and jamming transitions in model supercooled liquids and foams, respectively. P(F)P(F) develops a peak that appears near the glass or jamming transitions, whose height increases with decreasing temperature, decreasing shear stress and increasing packing density. A similar shape of P(F)P(F) was observed in experiments on static granular packings. We propose that the appearance of this peak signals the development of a yield stress. The sensitivity of the peak to temperature, shear stress and density lends credence to the recently proposed generalized jamming phase diagram.

Keywords

Cite

@article{arxiv.cond-mat/0005035,
  title  = {Force distributions near the jamming and glass transitions},
  author = {C. S. O'Hern and Stephen A. Langer and Andrea J. Liu and S. R. Nagel},
  journal= {arXiv preprint arXiv:cond-mat/0005035},
  year   = {2009}
}

Comments

4 pages, 3 postscript figures;Version 3 replaces figure 1 and removes figure 2 from version 1. Significant rewording of version 1 to emphasize the formation of peak in P(F) when these systems jam along five different routes of the recently proposed jamming phase diagram. Version 2 displayed the incorrect abstract