Glass Rheology: From mode-coupling theory to a dynamical yield criterion

Details Glass Rheology: From mode-coupling theory to a dynamical yield criterion Glass Rheology: From mode-coupling theory to a dynamical yield criterion

2009-09-28

arxiv.org/abs/0909.5067v1

Proc.Natl.Acad.Sci.USA, 106 15186 (2009)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1073/pnas.0905330106

The mode coupling theory (MCT) of glasses, while offering an incomplete description of glass transition physics, represents the only established route to first-principles prediction of rheological behavior in nonergodic materials such as colloidal glasses. However, the constitutive equations derivable from MCT are somewhat intractable, hindering their practical use and also their interpretation. Here, we present a schematic (single-mode) MCT model which incorporates the tensorial structure of the full theory. Using it, we calculate the dynamic yield surface for a large class of flows.

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