1) Continuum mechanic 
===Beam shear=== where The beam shear formula is also knowns as Zhuravskii Shear Stress formula after Dmitrii Ivanovich Zhuravskii who derived it in 1855. ===Semi-monocoque shear=== Shear stresses within a semi-monocoque structure may be calculated by idealizing the cross-section of the structure into a set of stringers (carrying only axial loads)...
force tending to cause deformation of a material by slippage along a plane or planes parallel to the imposed stress. The resultant shear is of great ... [14 related articles]
The force acting in shear flow expressed per unit area; units in the CGS system: dynes/cm2. ... (05 Mar 2000) ... 
frictional force overcome in sliding one 'layer' of fluid along another, as in any fluid flow. The shear stress of a petroleum oil or other Newtonian fluid at a given temperature varies directly with shear rate (velocity). The ratio between shear stress and shear rate is constant; this ratio is termed viscosity of a Newtonian fluid, the greater the...
shear stress. The stress component parallel to a given surface, such as a fault plane, that results from forces applied parallel to the surface or from reinote forces transmitted through the surrounding rock. If you lean against the edge of the door where the latch is, you are applying shear stress to the door.
Type: Term Definitions: 1. the force acting in shear flow expressed per unit area; units in the CGS system: dynes/cm2.
Stress caused by forces operating parallel to each other but in opposite directions.
Load per unit area parallel to the plane of contact.
The stress developing in a polymer melt when the layers in a cross section are gliding along the wall of the channel (in laminar flow).
Stress in the cross-sectional plane of a material that is in the same plane as the shearing force acting on it. See also: Bending Stress, Compressive Stress, Stress, Tensile Stress.
Where normal stress is perpendicular to the designated plane, shear stress is parallel to the plane. 
The stress on an object operating parallel to the slope on which it lies.
Load per unit area parallel to the plane of contact.