Modelling of Fatigue Plane Stress

摘要

In this work a formulation of the allowable stress amplitude in a model approach has been made. The model combines fatigue stress amplitude with initial yield stress determined for various states of the material. Its parameters are the relation of both stresses determined for the material in its virgin state, model number of cycle and plastic strain accepted for the initial yield stress definition. In result of modeling the characteristics of the material has been obtained in the form of a curve, which lies in the space of fatigue plane stress.