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Contact nonlinearities and linear response in jammed particulate packings

Authors
  • Goodrich, Carl P.
  • Liu, Andrea J.
  • Nagel, Sidney R.
Type
Published Article
Publication Date
Dec 31, 2014
Submission Date
Feb 25, 2014
Identifiers
DOI: 10.1103/PhysRevE.90.022201
Source
arXiv
License
Yellow
External links

Abstract

Packings of frictionless athermal particles that interact only when they overlap experience a jamming transition as a function of packing density. Such packings provide the foundation for the theory of jamming. This theory rests on the observation that, despite the multitude of disordered configurations, the mechanical response to linear order depends only on the distance to the transition. We investigate the validity and utility of such measurements that invoke the harmonic approximation and show that, despite particles coming in and out of contact, there is a well-defined linear regime in the thermodynamic limit.

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