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

ABSTRACT: 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.

SUBMITTER: Brader JM

PROVIDER: S-EPMC2741226 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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

Brader Joseph M JM Voigtmann Thomas T Fuchs Matthias M Larson Ronald G RG Cates Michael E ME

Proceedings of the National Academy of Sciences of the United States of America 20090814 36

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 th ...[more]

PMID: 19706475

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