I am trying to run a simulation for the rolling of a solid disc. For the material definition, I want to use a UMAT subroutine. However, as soon as the Steady State Transport step begins, the run aborts with the following error in the message file.
***ERROR: USER SUBROUTINE UMAT_SST IS MISSING
I couldnt find any mention of a subroutine called UMAT_SST in the documentation for Abaqus. Neither was any such error mentioned in the manuals. Any help would be appreciated greatly.
I have attached the .inp files and the sample UMAT for a Neo-Hookean model in a zip archive. To the simulation run the axi inp first and then the sst inp.