I am using both compression and tensile s-s curve in the simulation, which make it necessary to choose the material model

as nonliear elastic model.

But as the SWS help page indicates, large strain oprtion is not usable for nonlinear elastic model, while is also necessary in

the process that i want to simulate.

Could anyone tell me the reason? Or is there any other material model except from nonlinear elastic model to work it out.