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dc.contributor.author Lois, G
dc.contributor.author Zhang, J
dc.contributor.author Majmudar, TS
dc.contributor.author Henkes, S
dc.contributor.author Chakraborty, B
dc.contributor.author O'Hern, CS
dc.contributor.author Behringer, RP
dc.date.accessioned 2011-06-21T17:27:48Z
dc.date.issued 2009-12-28
dc.identifier.citation Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2009, 80 (6)
dc.identifier.issn 1539-3755
dc.identifier.uri http://hdl.handle.net/10161/4281
dc.description.abstract We study the response of dry granular materials to external stress using experiment, simulation, and theory. We derive a Ginzburg-Landau functional that enforces mechanical stability and positivity of contact forces. In this framework, the elastic moduli depend only on the applied stress. A combination of this feature and the positivity constraint leads to stress correlations whose shape and magnitude are extremely sensitive to the nature of the applied stress. The predictions from the theory describe the stress correlations for both simulations and experiments semiquantitatively. © 2009 The American Physical Society.
dc.language.iso en_US en_US
dc.relation.ispartof Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
dc.relation.isversionof 10.1103/PhysRevE.80.060303
dc.title Stress correlations in granular materials: An entropic formulation
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US
duke.date.pubdate 2009-12-0 en_US
duke.description.endpage 60303 en_US
duke.description.issue 6 en_US
duke.description.startpage 60303 en_US
duke.description.volume 80 en_US
dc.relation.journal Physical Review E en_US
pubs.issue 6
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Trinity College of Arts & Sciences
pubs.organisational-group /Duke/Trinity College of Arts & Sciences/Physics
pubs.publication-status Published
pubs.volume 80
dc.identifier.eissn 1550-2376

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