Connection Between Microscopic Dynamics And Macroscopic Properties Of Soft Particle Glasses

Conference Dates

July 21-24, 2019


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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