Step Strain Deformations for Viscoelastic Fluids: Experiment

D. C. Venerus, Christine Mary Vrentas, J. S. Vrentas

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Abstract

Shear stress and normal stress relaxation data were collected for a range of shear strains for a polystyrene—dibutyl phthalate solution. Data from single-step shear strain experiments were used to test time-strain factorability and to check on the applicability of the Lodge-Meissner rule. Significant departures from time-strain factorability were found, but the shear and normal stress data were in excellent agreement with the Lodge-Meissner prediction. Data from double-step shear strain experiments were used to check the predictions of the K—BKZ and Doi—Edwards theories. It was found that these theories do not generally provide adequate descriptions of double-step shear strain deformations.

Original languageEnglish (US)
Pages (from-to)657-684
Number of pages28
JournalJournal of Rheology
Volume34
Issue number5
DOIs
StatePublished - Jan 1 1990

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Venerus, D. C., Vrentas, C. M., & Vrentas, J. S. (1990). Step Strain Deformations for Viscoelastic Fluids: Experiment. Journal of Rheology, 34(5), 657-684. https://doi.org/10.1122/1.550146