Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session C06: Rheology and Flow of Soft Materials
3:00 PM–6:00 PM,
Monday, March 15, 2021
Room: 06
Sponsoring
Unit:
DSOFT
Chair: Irmgard Bischofberger, Massachusetts Institute of Technology MIT
Abstract: C06.00005 : Memory effects in dense colloidal suspensions*
3:48 PM–4:00 PM
Live
Presenter:
Celine Ruscher
(Institut Charles Sadron, Strasbourg, France)
Authors:
Celine Ruscher
(Institut Charles Sadron, Strasbourg, France)
Fabrice Thalmann
(Institut Charles Sadron, Strasbourg, France)
Pascal Hebraud
(Institut de Physique et Chimie des Matériaux de Strasbourg, Strasbourg, France)
We propose to investigate the microscopic origin of the macroscopic flow of a dense colloidal suspension at room temperature by considering Brownian dynamic simulations of a binary quasi hard spheres mixture. By performing cyclic shear deformation, we investigate the shear-history effects that occur for the different amount of pre-strain considered. A particular interest is devoted to the characterisation of the Bauschinger effect. To probe the origin of this phenomenon we explore microscopic structural and dynamical observables that aim to inform on the degree of reversibility in the suspension. An interpretation of our results with the generalized Maxwell model derived within the framework of MCT-ITT will be discussed.
*We thank ANR LatexDry project, grant ANR-18-CE06-0001 of the French Agence Nationale de la Recherche.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700