*HEADING
 LARGE STRAIN VISCO - AXISYMMETRIC TEST - CAX4R
*NODE
1,100
2,101
3,101,1
4,100,1
*ELEMENT,TYPE=CAX4R,ELSET=ONE
1,1,2,3,4
*SOLID SECTION,ELSET=ONE,MATERIAL=VISCO
*MATERIAL,NAME=VISCO
*HYPERELASTIC,MODULI=INSTANTANEOUS
 550.53,-275.265,7.E-7
*VISCOELASTIC,TIME=PRONY
 0.1986, ,0.281E-7
 0.1828, ,0.281E-5
 0.1388, ,0.281E-3
 0.2499, ,0.281E-1
 0.1703, ,0.281E1
 0.0593, ,0.281E3
*EQUATION
2,
4,1,-1.,1,1,1.
2,
3,1,-1.,2,1,1.
2,
4,2,-1.,3,2,1.
*BOUNDARY
1,2
2,2
*DIAGNOSTICS,NONHYBRID=WARNING
*STEP,INC=5,NLGEOM
*STATIC
1.,1.,0.001
*DLOAD
1,P4,0.01
*NODE FILE 
U, 
*EL FILE
S,E,CE,CEP
SINV, 
*PRINT,RESIDUAL=YES
*END STEP
*STEP,INC=50,NLGEOM
*VISCO,CETOL=50000
0.001,0.5
*END STEP