Abstract: | Crack initiation and crack propagation of fasteners under fatigue loading In this investigation the fatique strength of fasteners under variation of the property class, the sequence of manufacturing, the coating and the kind of lubrication, was determined. Thereby the crack initiation and the crack propagation of the individual variations were observed by suitable measurement instrumentation. As a result of the investigation the S‐N curves for crack initiation and for fracture of the different variations of fasteners are presented. |