What type of load causes a twisting stress in a material?

Torsion load is responsible for creating a twisting stress in a material. When a torsional force is applied, it induces a rotational effect around the longitudinal axis of the object. This twisting occurs when one end of an object is rotated while the other end remains stationary, causing shear stresses that vary along the length of the material.

Understanding torsion is essential in building construction because many structural elements, such as beams and shafts, can experience twisting due to applied forces or moments. Engineers must account for torsion when designing these elements to ensure that they can safely withstand operational loads without failing due to excessive twisting.