I use the MATLAB-Interface of GetFEM
to create a program that automatically solves different models of the same
problem.
The problem is three-dimensional, but
can be reduced by plain stress approximation. (to reduce computing time).
I want to define a nonlinear material
with the brick
gf_model_set(model M, 'add nonlinear elasticity
brick', [...])
For this nonlinear command it is specified
in the description, that in 2D always plain strain is used.
So my question is: Is there a way to
define a nonlinear material with the plain stress approximation? Or is
it planned to install such an option in a future release?