Shear Banding of Complex Fluids

Divoux, Thibaut; Fardin, Marc-Antoine; Manneville, Sébastien; Lerouge, Sandra

doi:10.1146/annurev-fluid-122414-034416

Cited by 264 publications

(201 citation statements)

References 153 publications

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“…First observed in wormlike micellar surfactants in the mid 1990s [3], it has since also been seen in lyotropic lamellar phases [4], triblock copolymers [5], star polymers [6], carbopol gel [7], clays [8,9], emulsions [9], and (subject to ongoing controversy [10,11]) entangled monodisperse linear polymers [12,13]. For reviews, see [2,[14][15][16].…”

Section: Introductionmentioning

confidence: 98%

Triggers and signatures of shear banding in steady and time-dependent flows

Fielding¹

2016

Journal of Rheology

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. AbstractThis pr ecis is aimed as a practical field guide to situations in which shear banding might be expected in complex fluids subject to an applied shear flow. Separately for several of the most common flow protocols, it summarizes the characteristic signatures in the measured bulk rheological signals that suggest the presence of banding in the underlying flow field. It does so both for a steady applied shear flow and for the time-dependent protocols of shear startup, step stress, finite strain ramp, and large amplitude oscillatory shear. An important message is that banding might arise rather widely in flows with a strong enough time dependence, even in fluids that do not support banding in a steadily applied shear flow. This suggests caution in comparing experimental data with theoretical calculations that assume a homogeneous shear flow. In a brief postlude, we also summarize criteria in similar spirit for the onset of necking in extensional filament stretching. V C 2016 The Society of Rheology.[http://dx

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Section: Introductionmentioning

confidence: 98%

Triggers and signatures of shear banding in steady and time-dependent flows

Fielding¹

2016

Journal of Rheology

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“…wormlike micellar surfactant solutions, polymer solutions and melts, star polymers, emulsions, suspensions, microgels, biological gels, and foams [18]. Since the first theoretical models for wormlike micelles [19][20][21][22], numerous techniques and experiments were developed to understand the shear banding phenomenon; see [23][24][25][26] for reviews of experiments (mainly on wormlike micelles) and theoretical considerations.…”

Section: Introductionmentioning

confidence: 99%

“…Polymeric systems with reversible junctions, such as entanglements or associative stickers, are also known to undergo flow instabilities, e.g. spurt [28], shear banding [18,24,[29][30][31][32] or melt fracture [33][34][35]. In concentrated solutions of telechelic polymers, i.e.…”

Section: Introductionmentioning

confidence: 99%

Periodic “stick-slip” transition within a continuum model for entangled supramolecular polymers

Boudara

Read

2018

Journal of Rheology

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Article:Boudara, VAH orcid.org/0000-0001-8156-0402 and Read, DJ orcid.org/0000-0003-1194-9273 (2018) Periodic "stick-slip" transition within a continuum model for entangled supramolecular polymers. Journal of Rheology, 62 (1). pp. [249][250][251][252][253][254][255][256][257][258][259][260][261][262][263][264] https://doi.org/10.1122/1.5000454 © 2017 by The Society of Rheology, Inc. This is an author produced version of a paper accepted for publication in Journal of Rheology. Uploaded in accordance with the publisher's self-archiving policy. This is an author produced version of a paper accepted for publication in Journal of Rheology. Uploaded in accordance with the publisher's self-archiving policy.eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. AbstractWe investigate shear flow instabilities using a recently-derived constitutive law, designed for describing the rheology of entangled telechelic polymers. The continuum model displays shear banding, often accompanied by a strong elastic recoil in the transient response, which appears as an "apparent" wall slip. For certain parameters, the model also displays a novel "apparent" stick-slip behavior, giving rise to strong nonlinear oscillations in the stress response driven by a repeating cycle of elastic recoil followed by diffusive rehomogenization of the flow. We elucidate the detailed mechanism behind this oscillatory response, demonstrating that it arises from a competition between shear-induced breaking of sticky bonds, which leads to recoil and banding, and a diffusive rehomogenization of the flow. We discuss the relation between the apparent stick-slip in our continuum model with similar behavior in "true" wall slip. * d.j.read@leeds.ac.uk

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“…Soft glassy materials (SGMs) present a theoretical concept for fluids that can be solid-like or liquid-like at rest, but all possess a microstructure with strongly interacting building blocks [1]. An extreme class of these are the yield stress fluids, which by virtue of their internal structure behave as solids under an imposed mechanical stress below the yield point, yet flow like fluids once the stress is increased beyond this limit [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Start-up inertia as an origin for heterogeneous flow

et al. 2017

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For quite some time non-monotonic flow curve was thought to be a requirement for shear banded flows in complex fluids. Thus, in simple yield stress fluids shear banding was considered to be absent. Recent spatially resolved rheological experiments have found simple yield stress fluids to exhibit shear banded flow profiles. One proposed mechanism for the initiation of such transient shear banding process has been a small stress heterogeneity rising from the experimental device geometry. Here, using Computational Fluid Dynamics methods, we show that transient shear banding can be initialized even under homogeneous stress conditions by the fluid start-up inertia, and that such mechanism indeed is present in realistic experimental conditions.

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Shear Banding of Complex Fluids

Cited by 264 publications

References 153 publications

Triggers and signatures of shear banding in steady and time-dependent flows

Triggers and signatures of shear banding in steady and time-dependent flows

Periodic “stick-slip” transition within a continuum model for entangled supramolecular polymers

Start-up inertia as an origin for heterogeneous flow

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