https://doi.org/10.1351/goldbook.W06691
The application of a finite shear to a system after a long rest may result in a decrease of the @[email protected] or the @[email protected] If the decrease persists when the shear is discontinued, this behaviour is called work softening (or shear breakdown), whereas if the original @[email protected] or @[email protected] is recovered this behaviour is called thixotropy.