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Understanding rheological hysteresis in soft glassy materials

Radhakrishnan, Rangarajan; Divoux, Thibaut; Manneville, Sébastien; Fielding, Suzanne M.

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Rangarajan Radhakrishnan

Thibaut Divoux

Sébastien Manneville


Motivated by recent experimental studies of rheological hysteresis in soft glassy materials, we study numerically strain rate sweeps in simple yield stress fluids and viscosity bifurcating yield stress fluids. Our simulations of downward followed by upward strain rate sweeps, performed within fluidity models and the soft glassy rheology model, successfully capture the experimentally observed monotonic decrease of the area of the rheological hysteresis loop with sweep time in simple yield stress fluids, and the bell shaped dependence of hysteresis loop area on sweep time in viscosity bifurcating fluids. We provide arguments explaining these two different functional forms in terms of differing tendencies of simple and viscosity bifurcating fluids to form shear bands during the sweeps, and show that the banding behaviour captured by our simulations indeed agrees with that reported experimentally. We also discuss the difference in hysteresis behaviour between inelastic and viscoelastic fluids. Our simulations qualitatively agree with the experimental data discussed here for four different soft glassy materials.


Radhakrishnan, R., Divoux, T., Manneville, S., & Fielding, S. M. (2017). Understanding rheological hysteresis in soft glassy materials. Soft Matter, 13(9), 1834-1852.

Journal Article Type Article
Acceptance Date Jan 30, 2017
Online Publication Date Jan 30, 2017
Publication Date Mar 7, 2017
Deposit Date May 4, 2017
Publicly Available Date Jan 30, 2018
Journal Soft Matter
Print ISSN 1744-683X
Electronic ISSN 1744-6848
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 13
Issue 9
Pages 1834-1852


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