Learning Forum

[John Doyle]

I don't see a "RATE,on" command in your script.  Creep will not be included without the RATE command executed just before the solve.

Also, since you describe your creep model coefficients as 'arbitrary', it might help to start with hand calculations to predict how much creep strain will be generated  for an assumed stress state and time increment.  That can sometimes give you a good sanity check for setting reasonable time step size and also for looking for clues to troubleshoot nonconvergence.