Material Nonlinear Analysis for VMIS material

Hi all,

I’m trying to run an analysis with nonlinear material defined as per the CADINP below.

+prog AQUA urs:17.1
head
CTRL REST 2
MATE 2 TITL “von Mises”
NMAT 2 TYPE VMIS P1 275000
ECHO FULL no
ECHO MAT FULL
end

When I try to run my SYST PROB NONL NMAT in ASE, the analysis is linear because only CONC and STEE nonlinear material are utilised for QUAD.

How can I run a material nonlinear analysis with the VMIS material?

Thanks.