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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Prog Polym Sci. 2019 Jan 17;91:126–140. doi: 10.1016/j.progpolymsci.2019.01.003

Fig. 4.

Fig. 4.

Graph illustrations of methods to determine the yield stress of a material, black dots correspond to the yield stress. A) Theoretical model fitting using the Herschel-Bulkley (HB) model as an example. B) Determining the shear stress at the crossover point of the storage and loss modulus (G’/G”). C) Determining the shear stress related to a pre-determined deviation of the storage modulus from linearity (i.e. 85% deviation). As a general rule, we recommend the HB model to calculate the yield stress (τ0).