*HEADING
 Test HYPERELASTIC, Marlow with *BIAXIAL TEST DATA  
 Poisson ratio is used
*PREPRINT,ECHO=NO,MODEL=YES
**
**Nodal data for the biaxial test
**For the POLYNOMIAL, N=2 material model
**
*NODE
1, 0.000000, 0.000000, 0.000000
2, 1.000000, 0.000000, 0.000000
3, 1.000000, 1.000000, 0.000000
4, 0.000000, 1.000000, 0.000000
5, 0.000000, 0.000000, 1.000000
6, 1.000000, 0.000000, 1.000000
7, 1.000000, 1.000000, 1.000000
8, 0.000000, 1.000000, 1.000000
*NSET, NSET=BIAXIALLOAD
6,
*NSET, NSET=BIAXIALLOAD_0
6,
*NSET, NSET=BIAXIALEQN1_0
5, 7, 8
*NSET, NSET=BIAXIALEQN2_0
2, 3, 7
*ELEMENT, ELSET=POLY_N2, TYPE=C3D8H
1,1,2,3,4,5,6,7,8
*EQUATION
2
BIAXIALEQN1_0, 3, 1, BIAXIALLOAD_0, 3, -1
2
BIAXIALEQN2_0, 1, 1, BIAXIALLOAD_0, 1, -1
**
**Section definitions
**
*SOLID SECTION, ELSET=POLY_N2, MATERIAL=POLY_N2
**
**Material definition for the POLYNOMIAL, N=2 material model
**
*MATERIAL, NAME=POLY_N2
*HYPERELASTIC, MARLOW,POISSON=0.47
*BIAXIAL TEST DATA,SMOOTH
0.0, 0.0
93840.0,0.02
159000.0,0.06
240870.0,0.11
262200.0,0.14
332400.0,0.2
442780.0,0.31
518300.0,0.42
660240.0,0.68
777940.0,0.94
978570.0,1.49
1263510.0,2.03
1468040.0,2.43
1740000.0,2.75
2010580.0,3.07
2245020.0,3.26
2465300.0,3.45
**
**
*STEP, NLGEOM, INC=1000
 Compress
*STATIC
0.1,1.,,.01
**
**Boundary definition for BIAXIAL test
**
*BOUNDARY
BIAXIALLOAD,1,1, 3.5
BIAXIALLOAD,3,3, 3.5
1,1,3
2,2,3
3,3
4,1
4,3
5,1,2
8,1
*OUTPUT, HISTORY
*NODE OUTPUT, NSET=BIAXIALLOAD
U1,
RF1,
*OUTPUT, FIELD, VAR=preselect
*END STEP
**