Hello LAMMPS users:
I would like to do a load-control (instead of displacement-control) deformation simulation. Since the boundary condition along the loading direction is shrink wrapped in my case, I cannot control pressure to do that. Is it a good idea to use “fix addforce”?
My system is a bimaterial: polymer applied to a crystalline substrate, and the substrate is assumed rigid (“fix rigid”) during the loading process. Can I apply “fix addforce” to a group of atoms set as rigid body?
Thanks for your help?