*heading
 test bergstrom-boyce, plane-strain loading
 strain rate=-0.01/s, material: Chloroprene Rubber (65 pph carbon black)
*node
1,
2,0.013
3,0.013,0.013,
4,0.,0.013
*element,type=cpe4,elset=eall
1,1,2,3,4
*solid section,elset=eall,material=hyster
*material,name=hyster
*hyperelastic,arruda-boyce,MODULI=LONG TERM
1.71,2.8284,0.01
*hysteresis
4.0,0.03135,5.,-0.9
*boundary
1,1,2,
2,2,2,
4,1,1,
*DIAGNOSTICS,NONHYBRID=WARNING
*step,nlgeom,inc=1000,unsymm=yes
*static
1.,50.,,5.
*boundary
3,2,2,-0.0051151
4,2,2,-0.0051151
*el print
s, 
le, 
*node print
rf,u
*OUTPUT,FIELD
*ELEMENT OUTPUT
s,le
*OUTPUT,FIELD
*NODE OUTPUT
u,rf
*end step
**
*step,nlgeom,inc=1000,unsymm=yes
*static
1.,50.,,5.
*boundary
3,2,2,0.
4,2,2,0.
*end step
**