Creep damage calculation for thermo mechanical fatigue

Abstract

For the needs of the creep damage prediction of thermo mechanically loaded components, software has been developed. It enables master curve determination using the time-temperature parameters and creep damage calculation using Robinson's damage accumulation rule and simple time integration. The developed software makes it possible to calculate fatigue and creep damage, respectively. In the article the most used time-temperature parameters are introduced, a fast and user-friendly master curve determination is presented and an example of creep damage on a real set of data with a simple temperature-stress history is shown. © 2011 Journal of Mechanical Engineering. All rights reserved.