Abstract
New experimental data obtained from constant stress rheometers are used to show that the yield stress concept is an idealization, and that, given accurate measurements, no yield stress exists. The simple Cross model is shown to be a useful empiricism for many non-Newtonian fluids, including those which have hitherto been thought to possess a yield stress.
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References
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Barnes, H.A., Walters, K. The yield stress myth?. Rheol Acta 24, 323–326 (1985). https://doi.org/10.1007/BF01333960
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DOI: https://doi.org/10.1007/BF01333960