TYPE OF FAILURES IN METAL

TYPE OF TENSION FAILURE IN METAL

A. Ductile metal (shear failure)

Failure plane is at 45°

Cup-cone fracture

B. Brittle metal

Failure plane at 90o with longitudinal direction necking is not formed and failure is due to tension failure. 

tensile strength < Shear strength < Compressive strength

TYPE OF FAILURE IN COMPRESSION