Siebenbürger, M. and Ballauff, M. and Voigtmann, Th. (2012) Creep in Colloidal Glasses. Physical Review Letters, 108, p. 255701. American Physical Society. doi: 10.1103/PhysRevLett.108.255701.
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Official URL: http://prl.aps.org/abstract/PRL/v108/i25/e255701
Abstract
We investigate the nonlinear response to shear stress of a colloidal hard-sphere glass, identifying several regimes depending on time, sample age, and the magnitude of applied stress. This emphasizes a connection between stress-imposed deformation of soft and hard matter, in particular, colloidal and metallic systems. A generalized Maxwell model rationalizes logarithmic creep for long times and low stresses. We identify diverging time scales approaching a critical yield stress. At intermediate times, strong aging effects are seen, which we link to a stress overshoot seen in stress-strain curves.
Item URL in elib: | https://elib.dlr.de/76035/ | ||||||||||||
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Document Type: | Article | ||||||||||||
Title: | Creep in Colloidal Glasses | ||||||||||||
Authors: |
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Date: | 18 June 2012 | ||||||||||||
Journal or Publication Title: | Physical Review Letters | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
Volume: | 108 | ||||||||||||
DOI: | 10.1103/PhysRevLett.108.255701 | ||||||||||||
Page Range: | p. 255701 | ||||||||||||
Publisher: | American Physical Society | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | rheology, creep, amorphous solids, yield stress | ||||||||||||
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: | Voigtmann, Dr.rer.nat. Thomas | ||||||||||||
Deposited On: | 20 Jun 2012 12:17 | ||||||||||||
Last Modified: | 30 May 2019 22:06 |
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