Hard discs under steady shear: comparison of brownian dynamics simulations and mode coupling theory

Oliver Henrich; Fabian Weysser; Michael E. Cates; Matthias Fuchs

doi:10.1098/rsta.2009.0191

Hard discs under steady shear: comparison of brownian dynamics simulations and mode coupling theory

Oliver Henrich, Fabian Weysser^*, Michael E. Cates, Matthias Fuchs

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.

Original language	English
Pages (from-to)	5033-5050
Number of pages	18
Journal	Philosophical Transactions A: Mathematical, Physical and Engineering Sciences
Volume	367
Issue number	1909
DOIs	https://doi.org/10.1098/rsta.2009.0191
Publication status	Published - 28 Dec 2009
Externally published	Yes

Keywords

colloids
glasses
rheology

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10.1098/rsta.2009.0191

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abstract = "Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.",

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author = "Oliver Henrich and Fabian Weysser and Cates, {Michael E.} and Matthias Fuchs",

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AU - Henrich, Oliver

AU - Weysser, Fabian

AU - Cates, Michael E.

AU - Fuchs, Matthias

PY - 2009/12/28

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N2 - Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.

AB - Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.

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KW - glasses

KW - rheology

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U2 - 10.1098/rsta.2009.0191

DO - 10.1098/rsta.2009.0191

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Hard discs under steady shear: comparison of brownian dynamics simulations and mode coupling theory

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Keywords

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