Modelling of creep effect:

Good morning friends,

I have to develop the analysis of a structure submited to constant loads and temperature, and I want to estimate its life. I want to know how to perform this type of analysis by Radioss (I think this is the best software in Altair to do that), and I w.ant to consider the Bailey-Norton law. Also I want to know the possibility to expose some of the parts to higher temperatures during the time. Thank you very much for your attention.