Dynamics of Weakly Strain-hardening Fluids in Filament Stretching Devices

  title={Dynamics of Weakly Strain-hardening Fluids in Filament Stretching Devices},
  author={Minwu Yao and A. U.S. and Stephen H. Spiegelberg and Gareth H. McKinley},
We investigate the transient viscoelastic response of weakly strain-hardening fluids to imposed elongational deformation in filament stretching devices. We combine timedependent finite-element simulations with quantitative experimental measurements on a rheologically well-characterized test fluid to investigate how well the device reproduces the ideal transient uniaxial extensional viscosity predicted theoretically. A concentrated polymer solution containing 5.0 wt.% monodisperse polystyrene is… CONTINUE READING


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