I'm currently working on a transient thermal model that incorporates submodeling (using BFINT and CBDOF) to coarsen sections and transfer the relevant data, before continuing heat application. I'm having a lot of trouble getting proper data transfer between the two models. While temperature and displacement are transferred successfully, the stress and strain solutions are way off. It's my understanding that submodeling is able to perform effectively in transient situations, however this has not been my experience whatsoever. I'm hoping someone here can provide a clearer explanation of where I'm going wrong.
My guess at the moment is the fact that my thermally dependent material properties are causing trouble, as the temperature during loading changes drastically as the transient load moves. I also do a complete material switch when the temperature gets high enough. Could these be causing my issues? How should I proceed in order to rectify this, or any other issues you see. I've attached my full code if that's helpful.
Thanks for any help you can give,