Strain hardening in liquid-particle suspensions

Pasi Raiskinmäki, Antti Koponen, Markku Kataja

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

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.
Original languageEnglish
Article number061402
JournalPhysical review E
Volume72
Issue number6
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

Strain Hardening
strain hardening
Liquid
Viscosity
viscosity
liquids
momentum transfer
Momentum
Numerical Simulation
Motion
Experiment
simulation

Keywords

  • suspensions
  • work hardening
  • viscosity
  • numerical analysis
  • shear
  • shear properties

Cite this

Raiskinmäki, Pasi ; Koponen, Antti ; Kataja, Markku. / Strain hardening in liquid-particle suspensions. In: Physical review E. 2005 ; Vol. 72, No. 6.
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Strain hardening in liquid-particle suspensions. / Raiskinmäki, Pasi; Koponen, Antti; Kataja, Markku.

In: Physical review E, Vol. 72, No. 6, 061402, 2005.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Strain hardening in liquid-particle suspensions

AU - Raiskinmäki, Pasi

AU - Koponen, Antti

AU - Kataja, Markku

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

KW - suspensions

KW - work hardening

KW - viscosity

KW - numerical analysis

KW - shear

KW - shear properties

U2 - 10.1103/PhysRevE.72.061402

DO - 10.1103/PhysRevE.72.061402

M3 - Article

VL - 72

JO - Physical review E

JF - Physical review E

SN - 2470-0045

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M1 - 061402

ER -