[phoqui]

Hi everyone

I'm a beginner in ANSYS APDL and I try to do an equibiaxial tension test on a cube in MAPDL. I made a uniaxial test and shear test with succes but I have got some troubles with the equibiaxial. The code is not working. I think it's because of the boundaries condition but I can't fix it so if someone can help me.
Here is the APDL code I made :

/PREP7
! Geometry and mesh
ET,1,SOLID185

! Geometry and mesh
Lx=1
Ly=1
Lz=1
BLOCK,0,Lx,0,Ly,0,Lz
ET,1,SOLID185
ESIZE,Lx
MAT,1
VMESH,1
nsubst=100

! User material parameters
E=10E3 ! Young's modulus
nu =0.45

G=E/(2*(1+nu)) ! shear modulus
K=E/(3*(1-2*nu)) ! bulk modulus
d=2/K ! incompressibility parameters
TB,HYPER, 1,1,,NEO
TBDATA,1,G,d

!--------------------------------------------------------------------------
! Solution
!----------------------------------------------------------------------
/SOL
ANTYPE, STATIC
NLGEOM,ON
OUTRES,ALL,ALL


NSEL,S,LOC,Y,0.
F,ALL,Fy, -Ly
ALLSEL,ALL
NSEL,S,LOC,Y,Ly
F,all,Fy,Ly
ALLSEL,ALL

NSEL,S,LOC,X,Lx
F,all,Fx,Lx/2
ALLSEL,ALL
NSEL,S,LOC,X,0
F,all,Fx,-Lx/2
TIME,1.0
ALLSEL,ALL
SOLVE