Shear strength

Shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force.

When a paper is cut with scissors, the paper fails in shear. In structural and mechanical engineering, the shear strength of a component is essential for designing the dimensions and materials to be used for the manufacture or construction of the component (e.g., beams, plates, or bolts).