Fluctuations and like-torque clusters at the onset of the discontinuous shear thickening transition in granular materials

dc.contributor.authorRahbari, S. H. E.
dc.contributor.authorOtsuki, Michio
dc.contributor.authorPöschel, Thorsten
dc.date.accessioned2022-06-03
dc.date.available2022-06-02
dc.date.created2021
dc.date.issued2022-06-03
dc.description.abstractThe main mechanism driving rheological transitions is usually mechanical perturbation by shear — an unjamming mechanism. Investigating discontinuous shear thickening is challenging because the shear counterintuitively acts as a jamming mechanism. Moreover, at the brink of this transition, a thickening material exhibits fluctuations that extend both spatially and temporally. Despite recent extensive research, the origins of such spatiotemporal fluctuations remain unidentified. Here, we numerically investigate the fluctuations in injected power in discontinuous shear thickening in granular materials. We show that a simple fluctuation relation governs the statistics of power fluctuations. Furthermore, we reveal the formation of like-torque clusters near thickening and identify an unexpected relation between the spatiotemporal fluctuations and the collective behavior due to the formation of like-torque clusters. We expect that our general approach should pave the way to unmasking the origin of spatiotemporal fluctuations in discontinuous shear thickening.en
dc.identifier.citationCommunications Physics 4 (2021): 71. <https://www.nature.com/articles/s42005-021-00574-8>
dc.identifier.doihttps://doi.org/10.1038/s42005-021-00574-8
dc.identifier.opus-id19531
dc.identifier.urihttps://open.fau.de/handle/openfau/19531
dc.identifier.urnurn:nbn:de:bvb:29-opus4-195314
dc.language.isoen
dc.publisherSpringer Nature Limited
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.de
dc.subjectFluids
dc.subjectRheology
dc.subjectSoft materials
dc.subject.ddcDDC Classification::6 Technik, Medizin, angewandte Wissenschaften :: 62 Ingenieurwissenschaften :: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
dc.titleFluctuations and like-torque clusters at the onset of the discontinuous shear thickening transition in granular materialsen
dc.typearticle
dcterms.publisherFriedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
local.document.articlenumber4
local.journal.titleCommunications Physics
local.journal.volume4
local.sendToDnbfree*
local.subject.fakultaetTechnische Fakultät
local.subject.sammlungUniversität Erlangen-Nürnberg / Von der FAU geförderte Open Access Artikel / Von der FAU geförderte Open Access Artikel 2021
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