ECI Digital Archives

Title

Connection Between Microscopic Dynamics And Macroscopic Properties Of Soft Particle Glasses

Authors

Roger Bonnecaze, University of Texas at Austin, USAFollow
Fardin Khabaz, McKetta Department of Chemical Engineering, University of Texas at Austin
Michel Cloitre, CNRS, ESPCI Paris, PSL Research University

Conference Dates

July 21-24, 2019

Abstract

The heterogeneous dynamics of jammed suspensions of soft particles is analyzed using three-dimensional particle dynamic simulations. Our results reveal how particle softness determines the dynamics at different length scales. The long-time shear-induced diffusion coefficient, the structural relaxation time, the shear stress and the normal stress differences are found to be universal functions of the same non-dimensional shear rate that depends on the solvent viscosity, particle elasticity and volume fraction. They are interconnected through simple relationships that predict the macroscopic rheology from microscopic dynamics.

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Recommended Citation

Roger Bonnecaze, Fardin Khabaz, and Michel Cloitre, "Connection Between Microscopic Dynamics And Macroscopic Properties Of Soft Particle Glasses" in "Colloidal, Macromolecular and Biological Gels II", Samiul Amin, Manhattan College, USA Saad Khan, North Carolina State University, USA Srini Raghavan, University of Maryland College Park, USA Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/cmb_gels_ii/16