Zausch, J. and Horbach, J. and Laurati, M. and Egelhaaf, S. U. and Brader, J. M. and Voigtmann, T. and Fuchs, M. (2008) From Equilibrium to Steady State: The Transient Dynamics of Colloidal Liquids under Shear. Journal of Physics - Condensed Matter, 20, 404210/1-404210/13. doi: 10.1088/0953-8984/20/40/404210.
Full text not available from this repository.
Abstract
We investigate stresses and particle motion during the start up of flow in a colloidal dispersion close to arrest into a glassy state. A combination of molecular dynamics simulation, mode coupling theory and confocal microscopy experiment is used to investigate the origins of the widely observed stress overshoot and (previously not reported) super-diffusive motion in the transient dynamics. A link between the macro-rheological stress versus strain curves and the microscopic particle motion is established. Negative correlations in the transient auto-correlation function of the potential stresses are found responsible for both phenomena, and arise even for homogeneous flows and almost Gaussian particle displacements.
Item URL in elib: | https://elib.dlr.de/54872/ | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Article | ||||||||||||||||||||||||
Title: | From Equilibrium to Steady State: The Transient Dynamics of Colloidal Liquids under Shear | ||||||||||||||||||||||||
Authors: |
| ||||||||||||||||||||||||
Date: | 2008 | ||||||||||||||||||||||||
Journal or Publication Title: | Journal of Physics - Condensed Matter | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||
Volume: | 20 | ||||||||||||||||||||||||
DOI: | 10.1088/0953-8984/20/40/404210 | ||||||||||||||||||||||||
Page Range: | 404210/1-404210/13 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | molecular dynamics, glass forming liquids under shear, confocal microscopy, mode coupling serie | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||||||||||||||
HGF - Program: | Space (old) | ||||||||||||||||||||||||
HGF - Program Themes: | W FR - Forschung unter Weltraumbedingungen (old) | ||||||||||||||||||||||||
DLR - Research area: | Space | ||||||||||||||||||||||||
DLR - Program: | W FR - Forschung unter Weltraumbedingungen | ||||||||||||||||||||||||
DLR - Research theme (Project): | W - Vorhaben Materialwissenschaftliche Forschung (old) | ||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Physics in Space | ||||||||||||||||||||||||
Deposited By: | Parpart, Ingeborg | ||||||||||||||||||||||||
Deposited On: | 21 Oct 2008 | ||||||||||||||||||||||||
Last Modified: | 27 Apr 2009 15:08 |
Repository Staff Only: item control page