*Heading
Mullins effect, Incompressible OGDEN model
3D element, cyclic uniaxial tension
Comparison of nominal stresses
** Job name: Job-1 Model name: mmecoo3cut_ogden
**
** PARTS
**
*Part, name=PART-1
*End Part
**
** ASSEMBLY
**
*Assembly, name=Assembly
**  
*Instance, name=PART-1-1, part=PART-1
*Node
      1,           0.,           0.,           0.
      2,           1.,           0.,           0.
      3,           1.,           1.,           0.
      4,           0.,           1.,           0.
      5,           0.,           0.,           1.
      6,           1.,           0.,           1.
      7,           1.,           1.,           1.
      8,           0.,           1.,           1.
*Element, type=C3D8RH
1, 1, 2, 3, 4, 5, 6, 7, 8
*Elset, elset=ONE
 1,
** Region: (Section-1-ONE:ONE)
*Elset, elset=_I1, internal
 1,
** Section: Section-1-ONE
*Solid Section, elset=_I1, material=OGDEN
1.,
*End Instance
*Nset, nset=ALL, instance=PART-1-1, generate
 1,  8,  1
*Nset, nset=FACE1, instance=PART-1-1, generate
 1,  4,  1
*Nset, nset=FACE2, instance=PART-1-1, generate
 5,  8,  1
*Nset, nset=FACE3, instance=PART-1-1
 1, 2, 5, 6
*Nset, nset=FACE4, instance=PART-1-1
 2, 3, 6, 7
*Nset, nset=FACE5, instance=PART-1-1
 3, 4, 7, 8
*Nset, nset=FACE6, instance=PART-1-1
 1, 4, 5, 8
*Nset, nset=SET, instance=PART-1-1
6,7,3
*NSET, NSET=TWO, instance=PART-1-1
2,
*EQUATION
** Since the S11 output is Cauchy or true stress, we need to
** determine the nominal stress for post-processing.
** Nodes 6,7,3 are tied to node 2 in dof 1 so that:
** Nominal stress (dof 1) = RF1 (@ node 2) / Original area
** (w/c is 1 x 1 = 1)
2
SET,1,1, PART-1-1.2,1,-1
*End Assembly
** 
** MATERIALS
** 
*Material, name=OGDEN
*HYPERELASTIC,N=2,OGDEN
160.,2.,40.,-2.
*Mullins effect
5., 220.0
** ----------------------------------------------------------------
** 
** STEP: Step-1
** 
*Step, name=Step-1, nlgeom, inc=20
UNIAXIAL TENSION
*Static, direct
1., 20., 
** 
** BOUNDARY CONDITIONS
** 
*Boundary
FACE1, 3, 3
FACE3, 2, 2
FACE6, 1, 1
TWO, 1, 1, 2.
** 
** HISTORY OUTPUT
** 
*Output, history, frequency=10
*Element Output, elset=PART-1-1.ONE
SENER, S, DMENER
*Node Output, nset=TWO
U,RF,
*El Print, freq=999999
*Node Print, freq=999999
*End Step
** ----------------------------------------------------------------
** 
** STEP: Step-2
** 
*Step, name=Step-2, nlgeom
*Static, direct
1., 20., 
** 
** BOUNDARY CONDITIONS
** 
*Boundary, op=NEW
FACE1, 3, 3
FACE3, 2, 2
FACE6, 1, 1
TWO, 1, 1
*End Step
** ----------------------------------------------------------------
** 
** STEP: Step-3
** 
*Step, name=Step-3, nlgeom
*Static, direct
1., 20., 
** 
** BOUNDARY CONDITIONS
** 
*Boundary, op=NEW
FACE3, 2, 2
FACE6, 1, 1
TWO, 1, 1, 3.
FACE1, 3, 3
*End Step
** ----------------------------------------------------------------
** 
** STEP: Step-4
** 
*Step, name=Step-4, nlgeom
*Static, direct
1., 20., 
** 
** BOUNDARY CONDITIONS
** 
*Boundary, op=NEW
FACE1, 3, 3
FACE3, 2, 2
FACE6, 1, 1
TWO, 1, 1
** 
*End Step