Shear stress is the component of stress coplanar with a material cross-section. It arises from the force vector component parallel to the cross-section.
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Pro Tips
Shear stress calculation uses the area parallel to the force, unlike normal stress which uses perpendicular area.
The SI unit for shear stress is the Pascal (Pa), where 1 Pa = 1 N/m虏.
In engineering, shear stress is critical for designing bolts, rivets, and beams.
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Fun Facts
"The 'cup-and-cone' fracture in metals is partly caused by shear stress."
"Scissors work by applying shear stress to paper or fabric until it fails."
"Fluids like water also experience shear stress, which is related to their viscosity."
