What is a fracture caused by twisting stresses?

A fracture caused by twisting stresses is called a torsional fracture. It occurs when a material is subjected to a twisting force that exceeds its yield strength. This type of fracture is commonly seen in shafts, axles, and other components that are subjected to rotational forces. Torsional fractures can be either brittle or ductile, depending on the material properties and the loading conditions. Brittle torsional fractures are characterized by a sudden failure with little or no plastic deformation, while ductile torsional fractures exhibit significant plastic deformation prior to failure.