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dc.contributor.authorGillissen, JJJen
dc.contributor.authorNess, Christopheren
dc.contributor.authorPeterson, Josephen
dc.contributor.authorWilson, HJen
dc.contributor.authorCates, Michaelen
dc.date.accessioned2020-07-06T23:31:13Z
dc.date.available2020-07-06T23:31:13Z
dc.date.issued2020-03en
dc.identifier.issn0148-6055
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/307672
dc.description.abstract© 2020 The Society of Rheology. We recently developed a tensorial constitutive model for dense, shear-thickening particle suspensions that combines rate-independent microstructural evolution with a stress-dependent jamming threshold. This gives a good qualitative account for reversing flows, although it quantitatively overestimates structural anisotropy [J. J. J. Gillissen et al., Phys. Rev. Lett. 123(21), 214504 (2019)]. Here, we use the model to predict the unjamming effect of superposed transverse oscillations on a steady shear flow in the thickened regime [N. Y. C. Lin et al., Proc. Natl. Acad. Sci. U.S.A. 113, 10774 (2016)]. The model successfully reproduces the oscillation-mediated viscosity drop observed experimentally. We compare the time-dependent components of the stress and microstructure tensors to discrete-element simulations. Although the model correctly captures the main qualitative behavior, it generally over-predicts the microstructural anisotropy in steady shear, and it under-predicts the number of particle contacts in oscillating shear. It also does not fully capture the correct variation in phase angle between the transverse component of the microstructure and the shear rate oscillations as the amplitude of the latter is increased. These discrepancies suggest avenues for future improvements to the model.
dc.publisherSociety of Rheology
dc.rightsAll rights reserved
dc.titleConstitutive model for shear-thickening suspensions: Predictions for steady shear with superposed transverse oscillationsen
dc.typeArticle
prism.endingPage365
prism.issueIdentifier2en
prism.publicationDate2020en
prism.publicationNameJournal of Rheologyen
prism.startingPage353
prism.volume64en
dc.identifier.doi10.17863/CAM.54765
dcterms.dateAccepted2020-01-15en
rioxxterms.versionofrecord10.1122/1.5129657en
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-03en
dc.contributor.orcidNess, Christopher [0000-0002-0842-2537]
dc.contributor.orcidCates, Michael [0000-0002-5922-7731]
dc.identifier.eissn1520-8516
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) ERC (740269)
pubs.funder-project-idRoyal Society (RP170002)
cam.issuedOnline2020-03-04en
cam.orpheus.successMon Jul 13 08:26:50 BST 2020 - Embargo updated*
rioxxterms.freetoread.startdate2021-03-04


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