Shearbanding
Shearbanding is a phenomenon observed in certain complex fluids where the material spontaneously forms localized bands of high shear rate separated by regions of very low shear rate, even when subjected to a uniform macroscopic shear. This behavior is distinct from simple shear flow where the deformation is distributed uniformly throughout the material. Shearbanding can occur in a wide range of materials, including polymers, colloidal suspensions, emulsions, and even some biological fluids like mucus.
The underlying mechanism for shearbanding is typically attributed to the presence of microstructural rearrangements within the
The onset of shearbanding is often characterized by a non-monotonic relationship between shear stress and shear