*HEADING
USER-DEFINED FIELD VERIFICATION: HYPOELASTICITY AND DYNAMICS [CPE4]
*NODE,NSET=NALL
1,0.
2,1.
3,1.,1.
4,0.,1.
**
11,0.,3.
12,1.,3.
13,1.,4.
14,0.,4.
*NSET,NSET=FIX
1,4,11,14
*NSET,NSET=PULL
2,3,12,13
*ELEMENT,TYPE=CPE4,ELSET=EHYPO
1,1,2,3,4
*ELEMENT,TYPE=CPE4,ELSET=EFV
2,11,12,13,14
*SOLID SECTION,ELSET=EHYPO,MATERIAL=MHYPO
*SOLID SECTION,ELSET=EFV,MATERIAL=MFV
*MATERIAL,NAME=MHYPO
*HYPOELASTIC
 200.,0.,-0.010
1000.,0., 0.000
 200.,0., 0.010
*DENSITY
0.282, 
*MATERIAL,NAME=MFV
*ELASTIC,DEP=1
1000.,0.,0.,0.000
 600.,0.,0.,0.010
*DENSITY
0.282, 
*USER DEFINED FIELD
*BOUNDARY
NALL,2,2
FIX,1,1
**
** Static Stretch
*STEP,NLGEOM,INC=100
*STATIC,DIRECT
0.01,1.0
*BOUNDARY
PULL,1,,0.01
*NODE PRINT,FREQ=99
U,RF
*ELPRINT,FREQ=99
MISES,PEEQ,FV1
*NODE FILE,FREQ=1
U,RF
*EL FILE,FREQ=1
S,E
*ENDSTEP
**
** Dynamic Release
*STEP,NLGEOM,INC=1000
*DYNAMIC,DIRECT
0.0002,0.2
*BOUNDARY,OP=NEW
FIX,ENCASTRE
*ENDSTEP