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National Academy of Sciences, Proceedings of the National Academy of Sciences, 20(114), p. 5147-5152, 2017

DOI: 10.1073/pnas.1703926114

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Revealing the frictional transition in shear-thickening suspensions

Journal article published in 2017 by Cécile Clavaud, Antoine Bérut ORCID, Bloen Metzger, Yoël Forterre
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Significance The sudden and severe increase in the viscosity of certain suspensions above an onset stress is one of the most spectacular phenomena observed in complex fluids. This shear thickening, which has major implications for industry, is a long-standing puzzle in soft-matter physics. Recently, a frictional transition was conjectured to cause this phenomenon. Using experimental concepts from granular physics, we provide direct evidence that such suspensions are frictionless under low confining pressure, which is key to understanding their shear-thickening behavior.