Service Load Counting and Fatigue Life Estimation by the Full Wave Count Method

Abstract

Different methods have been already proposed in order to find load frequencies of service loads, and only peaks or ranges are given main attention in most of them. From the standpoint of fatigue, however, service loads should be analyzed in consideration not only of their peaks or ranges but also of their means. There is proposed in this paper the full wave count method which analyzes a service load-time history into individual proper full wave with a corresponding mean value. There is also discussed how to carry out a program fatigue test according to the count result for the fatigue life estimation.