Can anyone help me to make the user subroutine UMATHT used in ABAQUS simulation for lithiation process in lithium ion battery (LIB)? I am working on anode part of LIB and need to run an FEM simulation. However, I am not aware of the programming part of this subroutine. I would really appreciate comments from people who know about it.
Do you really need to write a user subroutine? Which model do you want to use?
It is thermo-mechanical analysis. Because, thermal strain can be taken as analogy to strain in structure after lithiation. Do you need more details ? I can send you some references.
Yes, please send me a reference. I'm not sure, if the subroutine umatht is the right choice, as it can only be used to define the thermal behaviour, i.e. the dependence of the heat flow vector on the temperature and the temperature gradient and its history.
As far as I understand your problem, you want to model the transport and reaction of lithium by using the analogy of diffusion and heat transfer!?
- Badges
- Science topic