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dc.contributor.authorHenann, David Lee
dc.contributor.authorKamrin, Kenneth N.
dc.date.accessioned2014-11-20T18:02:42Z
dc.date.available2014-11-20T18:02:42Z
dc.date.issued2014-10
dc.date.submitted2014-05
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/1721.1/91655
dc.description.abstractRecent dense granular flow experiments have shown that shear deformation in one region of a granular medium fluidizes its entirety, including regions far from the sheared zone, effectively erasing the yield condition everywhere. This enables slow creep deformation to occur when an external force is applied to a probe in the nominally static regions of the material. The apparent change in rheology induced by far-away motion is termed the “secondary rheology,” and a theoretical rationalization of this phenomenon is needed. Recently, a new nonlocal granular rheology was successfully used to predict steady granular flow fields, including grain-size-dependent shear-band widths in a wide variety of flow configurations. We show that the nonlocal fluidity model is also capable of capturing secondary rheology. Specifically, we explore creep of a circular intruder in a two-dimensional annular Couette cell and show that the model captures all salient features observed in experiments, including both the rate-independent nature of creep for sufficiently slow driving rates and the faster-than-linear increase in the creep speed with the force applied to the intruder.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (NSF-CBET-1253228)en_US
dc.description.sponsorshipMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.113.178001en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAPSen_US
dc.titleContinuum Modeling of Secondary Rheology in Dense Granular Materialsen_US
dc.typeArticleen_US
dc.identifier.citationHenann, David L., and Ken Kamrin. “Continuum Modeling of Secondary Rheology in Dense Granular Materials.” Physical Review Letters 113, no. 17 (October 2014). © 2014 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorKamrin, Kenneth N.en_US
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsHenann, David L.; Kamrin, Kenen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-5154-9787
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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