Brownian dynamics of polymers at high strain rates

D. Kivotides, T. G. Theofanous

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

We tackle the problem of viscoelastic break-up in high speed flow by employing a mesoscopic bead-spring model for the polymer chains, and by performing Brownian dynamics computations for a variety of extensional flows with high strain rates. The results inform about the level of elastic stresses during elongation, and allow inferences about the scaling of the necking process during rupture. Moreover, the findings clarify the mechanism of chain stretching, informing about the times required for full extension and the role of polymer geometry during elongation.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages1384-1386
Number of pages3
Volume1027
DOIs
Publication statusPublished - 7 Jul 2008
Event15th International Congress on Rheology - Monterey, CA, United States
Duration: 3 Aug 20088 Aug 2008

Conference

Conference15th International Congress on Rheology
CountryUnited States
CityMonterey, CA
Period3/08/088/08/08

Keywords

  • bead-spring model
  • Brownian dynamics
  • dilute polymeric flows
  • extensional rheology
  • high strain rates
  • Viscoelastic fluid break-up

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