Author(s)

E. Wittbrodt, H. Spus & K. Lipinski

Abstract

The SN characteristic which is applied in the fatigue investigations - Wohler curve - determines the number of cycles necessary for the entire destruction of an investigated element as a function of the load amplitude. The estimation of a crack propagation during a fatigue process can be described by the Paris equation and presented in a form of co-ordinates: the crack growth rate as a function of a stress intensity factor range depending on an exterior load and the exterior geometry of the investigated element, as well as on the geometry of a crack* In this paper the transformation method of the Paris curve into the Wohler curve, in the range of line fracture mechanics, FM, is presented. The obtained F

Keywords