Shear strength

Shear strength refers to the ability of a material to resist sliding or deformation when a force is applied parallel to its surface. Imagine pushing two adjacent layers of a cake sideways; the force generates shear stress. If the cake holds together well, it has high shear strength. This concept is crucial in construction and engineering, as materials like soil, concrete, and metals must withstand various forces without sliding apart. Understanding shear strength helps engineers design safer buildings, roads, and structures that can endure everyday stresses and unexpected loads.