6533b828fe1ef96bd1289100
RESEARCH PRODUCT
Strain hardening in liquid-particle suspensions
Jussi TimonenP. RaiskinmäkiJari HyväluomaMarkku KatajaAntti Koponensubject
work hardeningMaterials scienceStrain (chemistry)numerical analysisMomentum transferSuspended particlesStrain hardening exponentshearSuspension (chemistry)Condensed Matter::Soft Condensed MatterPhysics::Fluid DynamicsViscosityChemical physicsviscosityParticlesuspensionsshear propertiesdescription
The behavior of a liquid-particle suspension induced to sheared motion was analyzed by numerical simulations. When the velocity (strain) of the suspension began to increase, its viscosity first stayed almost constant, but increased then rapidly to a clearly higher level. This increase in viscosity is shown to be related to formation of clusters of suspended particles. Clusters are shown to increase the viscosity by enhanced momentum transfer though clustered particles. This is the mechanism behind the strain-hardening phenomenon observed in small-strain experiments on liquid-particle suspensions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-01-01 | Physical review E |