It was argued in Refs. [1, 2] that the yield stress emerges as an artefact related to the inability of the rheometric equipment to properly identify a viscous ﬂow regime in a range of negligibly small rates of deformation.
Linear Stability Analysis for Plane-Poiseuille Flow of an Elastoviscoplastic fluid with internal microstructure
The stress response was measured using an RFS Rheometrics Scientiﬁc controlled strain rate rheometer in Couette (radii 24.5, 25 mm) and cone-plate geometries.
Timescales in shear banding of wormlike micelles