I need to define Conductivity and Specific Heat in user defined material Umatht.f. I recompiled the source codes of calculix with Umatht.f, but it doesn’t work (the solution procedure stops immediately). I used Calculix CAE. Here are my Umatht.f file and inp files:
The Umatht.f is simple, which is used for testing. I don’t know why the model doesn’t work. If I define the material properties directly in inp file, everything is fine. And, I also tested Umatht.f with ABAQUS and it works.
Does anybody have experiences with user defined Conductivity and Specific Heat properties for transient thermal analysis? Could anybody help me about this. Thanks in advance!