Abstract
IN the published literature it is sometimes stated that a knowledge of two normal stress differences as a function of shear rate together with the viscosity shear rate relation and the condition of incompressibility is sufficient to characterize non-linear viscoelastic flow because the condition of constant volume gives another relationship between normal stresses.
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HARRIS, J. Rheological Characterization and Incompressible Flow. Nature 201, 1311 (1964). https://doi.org/10.1038/2011311a0
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DOI: https://doi.org/10.1038/2011311a0
