The role of collective elasticity on activated structural relaxation, yielding, and steady state flow in hard sphere fluids and colloidal suspensions under strong deformation

The Journal of Chemical Physics
Ashesh Ghosh, Kenneth S Schweizer

Abstract

We theoretically study the effect of external deformation on activated structural relaxation and aspects of the nonlinear mechanical response of glassy hard sphere fluids in the context of elastically collective nonlinear Langevin equation theory. This microscopic force-based approach describes activated relaxation as a coupled local-nonlocal event involving caging and longer range collective elasticity, with the latter becoming more important and ultimately dominant with increasing packing fraction under equilibrium conditions. The central new question we address is how this physical picture of activated relaxation, and the relative importance of local caging vs collective elasticity physics, depends on external deformation. Theoretical predictions are presented for deformation-induced enhancement of mobility, the onset of relaxation speed up at remarkably low values of stress, strain, or shear rate, apparent power law thinning of the steady state structural relaxation time and viscosity, a non-vanishing activation barrier in the shear thinning regime, an apparent Herschel-Bulkley form of the rate dependence of the steady state shear stress, exponential growth of different measures of a dynamic yield or flow stress with the pa...Continue Reading

References

May 1, 1995·Physical Review. B, Condensed Matter·J C Dyre
Feb 1, 1996·Physical Review. B, Condensed Matter·J C DyreT Christensen
Mar 22, 2001·Nature·P G Debenedetti, F H Stillinger
Dec 18, 2002·Physical Review Letters·Matthias Fuchs, Michael E Cates
Mar 18, 2003·Faraday Discussions·Matthias Fuchs, Michael E Cates
Mar 18, 2003·Faraday Discussions·Georgios PetekidisPeter N Pusey
Apr 12, 2003·Physical Review Letters·F VarnikL Berthier
Mar 26, 2004·Nature·Gregory M GratsonJennifer A Lewis
Aug 25, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Kunimasa MiyazakiRyoichi Yamamoto
Mar 24, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Vladimir Kobelev, Kenneth S Schweizer
Nov 5, 2005·The Journal of Chemical Physics·Vladimir Kobelev, Kenneth S Schweizer
Sep 1, 2006·The Journal of Chemical Physics·Erica J Saltzman, Kenneth S Schweizer
Oct 10, 2006·Physical Review Letters·Marios D DemetriouWilliam L Johnson
Feb 7, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Erica J Saltzman, Kenneth S Schweizer
Aug 7, 2007·Physical Review Letters·R BesselingW C K Poon
Feb 1, 2008·Physical Review Letters·Thomas K Haxton, Andrea J Liu
Mar 5, 2009·Physical Review Letters·Akira FurukawaHajime Tanaka
Aug 27, 2009·Proceedings of the National Academy of Sciences of the United States of America·Joseph M BraderMichael E Cates
Apr 7, 2010·Physical Review Letters·Alessio ZacconeEmanuela Del Gado
Jan 15, 2011·Physical Review Letters·R BesselingW C K Poon
Sep 4, 2012·The Journal of Chemical Physics·M D Ediger, Peter Harrowell
May 20, 2015·Nature Communications·Hai-Bin YuKonrad Samwer
Jul 12, 2017·Proceedings of the National Academy of Sciences of the United States of America·Vikram Jadhao, Mark O Robbins
Apr 2, 2019·Physical Review Letters·Baoshuang ShangJean-Louis Barrat
Jan 22, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Alessio Zaccone
Jun 25, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·A Zaccone, E M Terentjev

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Citations

Jun 30, 2021·Journal of Colloid and Interface Science·Gaurav ChaudharyKenneth S Schweizer

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