One-dimensional compression of a saturated elastoviscoplastic medium

Daniel T. Paterson, Tom S. Eaves, Duncan R. Hewitt, Neil J. Balmforth, D. Mark Martinez

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
68 Downloads (Pure)

Abstract

A theoretical and experimental study is presented of the one-dimensional compression of a networked suspension. Particular attention is given to relatively rapid compression where we extend previous works by including an elastoviscoplastic constitutive relation. Solutions of a one-dimensional model are presented, and asymptotic limits explored, for compressions controlling either displacement or load. The results are compared to complementary laboratory experiments using cellulose fiber suspensions, with the material functions appearing in the model calibrated by independent experiments. Measurements of load and local solid velocity as a function of displacement during compression and unloading gauge the importance of elastic effects. The comparison between experiment and theory is satisfying, demonstrating a dramatic improvement over existing inelastic constitutive models in reproducing the observed differential spatial compaction.

Original languageEnglish
Article number054303
Number of pages24
JournalPhysical Review Fluids
Volume7
Issue number5
DOIs
Publication statusPublished - 31 May 2022

Keywords

  • Flows in porous media
  • Multiphase flows
  • Porous media
  • Fluid Dynamics

ASJC Scopus subject areas

  • Computational Mechanics
  • Modelling and Simulation
  • Fluid Flow and Transfer Processes

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