Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Rheology of non-colloidal suspensions with viscoelastic matrices

Author affiliations


The rheology of non-colloidal suspensions of spheres in a viscoelastic matrix, including the viscometric, G′, G′ and uniaxial extensional responses, is explored. Volume fractions of 50% and less were used. By recognizing that filament stretching between beads begins at a distance comparable to the sphere diameter the unexpected large stresses seen in the uniaxial extension experiments can be understood, and a model is presented. In the experiments there is little variation of the dimensionless elongational stresses with the volume fraction ϕ. For a volume fraction of 50% the behaviour was different from the other concentrations. An essential finding is that a single-mode model of the Oldroyd-B type is not able to describe the elongational experiments at all-at least two modes are needed. There is clearly a difference between behaviour in elongation and in shear with regards to the action of interparticle friction. With negligible rotation of the particles in elongation the kind of vigorous interparticle rubbing possible in shear does not happen.

Graphical abstract: Rheology of non-colloidal suspensions with viscoelastic matrices

Back to tab navigation

Article information

04 Aug 2020
16 Sep 2020
First published
17 Sep 2020

Soft Matter, 2020, Advance Article
Article type

Rheology of non-colloidal suspensions with viscoelastic matrices

S. Dai and R. I. Tanner, Soft Matter, 2020, Advance Article , DOI: 10.1039/D0SM01419B

Social activity

Search articles by author