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Linking attractive interactions and confinement to the rheological response of suspended particles close to jamming.

Published version
Peer-reviewed

Type

Article

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Authors

Abstract

We study the response to simple shear start-up of an overdamped, athermal assembly of particles with tuneable attractive interactions. We focus on volume fractions close to the jamming point, where such systems can become disordered elastoplastic solids. By systematically varying the strength of the particle-particle attraction and the volume fraction, we demonstrate how cohesion and confinement individually contribute to the shear modulus and yield strain of the material. The results provide evidence for the influence of binding agents on the rheology of dense, athermal suspensions and describe a set of handles with which the macroscopic properties of such materials can be engineered.

Description

Keywords

Attraction, Confinement, Rheology, Suspension

Journal Title

Granul Matter

Conference Name

Journal ISSN

1434-5021
1434-7636

Volume Title

20

Publisher

Springer Science and Business Media LLC
Sponsorship
Engineering and Physical Sciences Research Council (EP/L015978/1)