Critical yielding rheology: from externally deformed glasses to active systems

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dc.contributor.authorVillarroel, Carlos
dc.contributor.authorDuring, Gustavo
dc.date.accessioned2025-01-20T22:07:58Z
dc.date.available2025-01-20T22:07:58Z
dc.date.issued2021
dc.description.abstractWe use extensive computer simulations to study the yielding transition under two different loading schemes: standard simple shear dynamics and self-propelled dense active systems. In the active systems, a yielding transition toward an out-of-equilibrium flowing state known as the liquid phase is observed when self-propulsion is increased. The range of self-propulsions in which this pure liquid regime exists appears to vanish upon approaching the so-called 'jamming point' at which the solidity of soft-sphere packings is lost. Such an 'active yielding' transition shares similarities with the generic yielding transition for shear flows. A Herschel-Bulkley law is observed along the liquid regime in both loading scenarios, with a clear difference in the critical scaling exponents between the two, suggesting the existence of different universality classes for the yielding transition under different driving conditions. In addition, we present the direct measurements of growing length and time scales for both driving scenarios. A comparison with theoretical predictions from the recent literature reveals poor agreement with our numerical results.
dc.fuente.origenWOS
dc.identifier.doi10.1039/d1sm00948f
dc.identifier.eissn1744-6848
dc.identifier.issn1744-683X
dc.identifier.urihttps://doi.org/10.1039/d1sm00948f
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94269
dc.identifier.wosidWOS:000710575300001
dc.issue.numero43
dc.language.isoen
dc.pagina.final9949
dc.pagina.inicio9944
dc.revistaSoft matter
dc.rightsacceso restringido
dc.titleCritical yielding rheology: from externally deformed glasses to active systems
dc.typeartículo
dc.volumen17
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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