George, W.
, Hebraud, P.
, Lootens, D.
, Khalil, M.
and Martys, N.
(2012),
Stress propagation in a colloidal suspension under shear, European Physical Journal E
(Accessed June 6, 2023)
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Stress propagation in a colloidal suspension under shear
Published
Author(s)
, Pascal Hebraud, Didier Lootens, Mouhamad Khalil,
Abstract
The stress propagation in a concentrated attractive colloidal suspension, under shear, is studied using mumerical simulations. A novel way of describing the intercolloidal stress field is proposed and its spatial correlations are studied. An inertia-like tensor is defined in order to characterize the anisotropic nature of the stress field. It is shown that, although the particles remain in a liquid order, the interparticle stress is strongly anisotropic. A transition under flow is observed: at low deformations, the stress propagates along the compression direction of the shear, whereas at high deformations, the stress is organized into layers parallel to the flow direction.Citation
European Physical Journal E
Pub Type
Journals
Keywords
Rheology, Yield Stress, Colloids, Granular Fluids
Citation
Created February 29, 2012, Updated October 12, 2021