Fatigue Life Predictions for Variable Load Histories - Part II : Computer Software for Predictions of Fatigue Crack Initiation Life -

變動荷重下의 疲勞壽命 豫測 第2報

A computer software was developed for predictions of fatigue crack initiation life of notched members under variable loadings. The software was constructed based on a new fatigue life prediction method utilizing modified .epsilon.-N curves, which can account for the stress interaction effect. The effect of mean plastic strain on low-cycle fatigue life was also incorporated in the software. The software can be utilized for the first step approximation when fundamental data of material fatigue properties are not available.