Nonlinear rheology of glass-forming colloidal dispersions : transient stress-strain relations from anisotropic mode coupling theory and thermosensitive microgels

Amann, Christian P.; Siebenbürger, Miriam; Ballauff, Matthias; Fuchs, Matthias

Nonlinear rheology of glass-forming colloidal dispersions : transient stress-strain relations from anisotropic mode coupling theory and thermosensitive microgels

Files

Amann_0-291738.pdf(785.33 KB)

Date

2015

Authors

Amann, Christian P.

Siebenbürger, Miriam

Ballauff, Matthias

Fuchs, Matthias

Project

Nonlinear Response to probe vitrification TP 03 (12.08.2013-11.06.2016)

Collections

Physik

Publication type

Journal article

Published in

Journal of Physics : Condensed Matter ; 27 (2015), 19. - 194121. - ISSN 0953-8984. - eISSN 1361-648X

Abstract

Transient stress-strain relations close to the colloidal glass transition are obtained within the integration through transients framework generalizing mode coupling theory to flow driven systems. Results from large-scale numerical calculations are quantitatively compared to experiments on thermosensitive microgels, which reveals that theory captures the magnitudes of stresses semi-quantitatively even in the nonlinear regime, but overestimates the characteristic strain where plastic events set in. The former conclusion can also be drawn from flow curves, while the latter conclusion is supported by a comparison to single particle motion measured by confocal microscopy. The qualitative picture, as previously obtained from simplifications of the theory in schematic models, is recovered by the quantitative solutions of the theory for Brownian hard spheres.

Subject (DDC)

530 Physics

Cite This

ISO 690

AMANN, Christian P., Miriam SIEBENBÜRGER, Matthias BALLAUFF, Matthias FUCHS, 2015. Nonlinear rheology of glass-forming colloidal dispersions : transient stress-strain relations from anisotropic mode coupling theory and thermosensitive microgels. In: Journal of Physics : Condensed Matter. 27(19), 194121. ISSN 0953-8984. eISSN 1361-648X. Available under: doi: 10.1088/0953-8984/27/19/194121

BibTex

@article{Amann2015Nonli-31502,
  year={2015},
  doi={10.1088/0953-8984/27/19/194121},
  title={Nonlinear rheology of glass-forming colloidal dispersions : transient stress-strain relations from anisotropic mode coupling theory and thermosensitive microgels},
  number={19},
  volume={27},
  issn={0953-8984},
  journal={Journal of Physics : Condensed Matter},
  author={Amann, Christian P. and Siebenbürger, Miriam and Ballauff, Matthias and Fuchs, Matthias},
  note={Article Number: 194121}
}

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Bibliography of Konstanz

Yes