Which of the following is not a characteristic observed in material
failure by fatigue fracture?
(A) Plastic deformation of material does not occur
(B) Initiation of crack from below the surface does not occur
(C) Initiation of crack occurs on the surface of the machine part
(D) Presence of both rough & smooth zone with conchoidal markings in
smooth zone of the surface
failure by fatigue fracture?
(A) Plastic deformation of material does not occur
(B) Initiation of crack from below the surface does not occur
(C) Initiation of crack occurs on the surface of the machine part
(D) Presence of both rough & smooth zone with conchoidal markings in
smooth zone of the surface