Hey guys,
I have a RVE (representative volume element) where the matrix is rubber (highly nonlinear).
I want to run my analysis with the NLGEOM option ON. What I want to understand is, after applying periodic boundary conditions and the strain in the required directions, and after the analysis converges, can I use that stress state to calculate my homogenized effective properties?
Do I always have to run a Static-Linear perturbation step and then calculate the constants?
Please give me your suggestions!!