shear stress
Noun
Meaning
English Wikipedia has an article on:shear stressWikipedia
shear stress (countable and uncountable, plural shear stresses)
(physics) the component of stress that causes parallel layers of a material to move relative to each other in their own planes.
Examples
For angular jerk the deformation waves are arranged circularly and cause shear stress as shown in the picture to the right, which also might cause other modes of vibration.
Mass movements can be caused by increases in shear stress, such as loading, lateral pressure, and transient forces.
Such a shear stress occurs if the fluid has a velocity gradient because the fluid is moving faster on one side than another.
The characterization of flow or deformation originating from a simple shear stress field is called shear rheometry (or shear rheology).
With this system the shear rate beneath the plate is constant to a modest degree of precision and deconvolution of a flow curve; a graph of shear stress (torque) against shear rate (angular velocity) yields the viscosity in a straightforward manner.