Glass rheology: From mode-coupling theory to a dynamical yield criterion
Glass rheology: From mode-coupling theory to a dynamical yield criterion
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DOI：
10.1073/pnas.0905330106
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发表时间：
2009-09-08
影响因子：
11.1
通讯作者：
Cates, Michael E.
中科院分区：
文献类型：
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作者：
Brader, Joseph M.;Voigtmann, Thomas;Cates, Michael E.
模式耦合理论（MCT）的玻璃，而提供了一个不完整的描述玻璃化转变物理，代表了唯一建立的路线，第一性原理预测的非遍历材料，如胶体玻璃的流变行为。然而，从MCT导出的本构方程有些棘手，阻碍了它们的实际应用，也阻碍了它们的解释。在这里，我们提出了一个示意性（单模）MCT模型，该模型包含了完整理论的张量结构。利用它，我们计算了一大类流动的动态屈服面。
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.