In fluid mechanics, simple shear is a special case of deformation where only one component of velocity vectors has a non-zero value:
And the gradient of velocity is constant and perpendicular to the velocity itself:
,
where is the shear rate and:
The deformation gradient tensor for this deformation has only one non-zero term:
Simple shear with the rate is the combination of pure shear strain with the rate of and rotation with the rate of :
Important examples of simple shear include laminar flow through long channels of constant cross-section (Poiseuille flow), and elastomeric bearing pads in base isolation systems to allow critical buildings to survive earthquakes undamaged.
Read more about Simple Shear: Simple Shear in Solid Mechanics, See Also
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