Universal microstructure and mechanical stability of jammed packings.

Journal Article (Journal Article)

The mechanical properties of jammed packings depend sensitively on their detailed local structure. Here we provide a complete characterization of the pair correlation close to contact and of the force distribution of jammed frictionless spheres. In particular we discover a set of new scaling relations that connect the behavior of particles bearing small forces and those bearing no force but that are almost in contact. By performing systematic investigations for spatial dimensions d=3-10, in a wide density range and using different preparation protocols, we show that these scalings are indeed universal. We therefore establish clear milestones for the emergence of a complete microscopic theory of jamming. This description is also crucial for high-precision force experiments in granular systems.

Full Text

Duke Authors

Cited Authors

  • Charbonneau, P; Corwin, EI; Parisi, G; Zamponi, F

Published Date

  • November 13, 2012

Published In

Volume / Issue

  • 109 / 20

Start / End Page

  • 205501 -

PubMed ID

  • 23215504

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.109.205501


  • eng