Sheared force-networks: anostpropies, yielding and geometry

JH Snoeijer, WG Ellenbroek, TJH Vlugt, M van Hecke

Research output: Contribution to journalArticle (Academic Journal)

31 Citations (Scopus)

Abstract

A scenario for the yielding of granular matter is presented by considering the ensemble of force networks for a given contact network and applied shear stress . As is increased, the probability distribution of contact forces becomes highly anisotropic, the difference between average contact forces along minor and major axes grows, and the allowed networks span a shrinking subspace of all force networks. Eventually, contacts start to break, and at the maximal shear stress the packing becomes effectively isostatic. The size of the allowed subspace exhibits simple scaling properties, which lead to a prediction for the yield stress for packings of an arbitrary contact number.
Translated title of the contributionSheared force-networks: anostpropies, yielding and geometry
Original languageEnglish
Article numberArticle no. 098001
Pages (from-to)1 - 4
Number of pages4
JournalPhysical Review Letters
Volume96 (9)
DOIs
Publication statusPublished - Mar 2007

Bibliographical note

Publisher: American Physical Soc

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