*heading
 test Bergstrom-Boyce elastomeric hysteresis model.
 uniaxial cyclic loading
 strain rate=-.01/s, material: Nitrile Rubber (unfilled)
*node
1,0.,0.
2,1.4e-2,0.
3,1.4e-2,1.3e-2
4,0.,1.3e-2
*nset,nset=top
3,4
*nset,nset=bot
1,2
*element,type=cax4,elset=eall
1,1,2,3,4
*solid section,elset=eall,material=hyster
*material,name=hyster
*hyperelastic,arruda-boyce,MODULI=LONG TERM
0.87,2.4495,0.01
*hysteresis
2.5,0.55,5.,-0.6
*boundary
bot,2,2,0.
**
**STEP 1
**load up to strain of -0.8
*DIAGNOSTICS,NONHYBRID=WARNING
*step,nlgeom,inc=100,unsymm=yes
*static
8.,80.
*boundary
top,2,2,-7.1587e-3
*el print
s, 
le, 
*node print,f=5
rf,u
*OUTPUT,FIELD
*ELEMENT OUTPUT
s,le
*OUTPUT,FIELD
*NODE OUTPUT
u,rf
*end step
**
**STEP 2
**unload
*step,nlgeom,inc=100,unsymm=yes
*static
8.,80.
*boundary
top,2,2,0.
*end step