Learning Forum

[pangruiyang1216]

Hi, I am designing usercreep user subroutine myself, I want to add back stress to the creep model, usercreep blueprint is based on Anand model usercreep, this usercreep has been verified, but after I add a fifth state variable to the code, there is no problem in compiling. However, the following error will occur when I solve it later. "An unexpected error(SIG$SEGV) has occured.ANSYS internal data has been corrupted.ANSYS is unable to recover and will terminate." I would like to ask whether it is my programming error that destroyed the internal structure logic of ANSYS?

[David Weed]

Hello,

Does the simulation run without error until you add the fifth state variable? If so, is this variable being used in another calculation? Can you include a write statement to print the value of this variable? Also, while testing, I would recommend solving in SMP with one core.

[pangruiyang1216]

Hello!Thanks for your reply.

Yes, I run the subroutine successfully without error before I add the fifth state variable. The successful subroutine"usercreep" is based on Anand model.And I want to add "backstress" into Anand model,please give me some suggestions.Can I add the backstress concept to the usercreep user subroutine？By the way,When the APDL program reports another error, I click proceed and the program exits. And I view the file.err, there is only "SIG$SEGV" error. How do I check the value of the status variable？This is important for me. Thanks again!