I'm trying to use a PolyUMod model (TNV) into Marc Mentat 2024, I followed the steps showed in the PolymerFem Tutorial but Marc shows me the Error 13.

Hello Sebastian Leon,

If you're getting Error 13 in Marc Mentat 2024 while using a PolyUMod model, it usually points to issues with units, missing data, or setup problems.

First, make sure the units in your model file (ModeloTNV1.dat) match those in your input file (sim.dat).

Also, check that the PolyUMod library is correctly linked in your command line script, and that your environment is properly configured with the right compilers and variables.

In this case, the material definition is missing density. Additionally, the sim.dat file also missing input file text.

Reviewing the .log and .out files can provide more specific clues about what’s going wrong. If you're using custom subroutines, make sure they’re compiled and linked properly.

I hope this will help you.

Regards,

Amol Kumbhar

Hello Sebastian Leon,

The unit for length should be in meters, and mass density must be in kg/m³. Please ensure that all units in your model are consistent throughout.

It also looks like the user subroutine setup might be missing. Kindly verify that your system is properly configured with the required compilers.

I was able to run your simulation successfully—here’s a snapshot of the result.

I hope this will help you.

Regards,

Amol Kumbhar