Auswirkungen der Schädigungsanisotropie auf die Lebensdauer von Stählen bei Zeitstandbeanspruchung

The effect of anisotropic damage on the rupture-time of steel under creep conditions The aim of the investigation is the prediction of the influence of creep history, e. g. pre-damage and pre-loading, on the further creep behaviour after changing the loading direction. The changing of the loading direction has a significant influence on the rupture-time. A model has been developed which describes the dependence of rupture-time from the anisotropic effect of damage.