*HEADING
SOFTENED CONTACT - EXPONENTIAL - (IRS)
INPUT DECK: .INP
********************
*NODE
3001, 0.04, 0.06
*NODE
1,     0.0,     0.0
25,    0.08,    0.0
1401,  0.0,     0.03175
1425,  0.08,    0.03175
*NGEN, NSET=BOTTOM
1, 25
*NGEN, NSET=TOP
1401, 1425
*NFILL, NSET=ALL
BOTTOM, TOP, 14, 100
*NSET, NSET=AXIS, GENERATE
1, 1401, 100 
*ELEMENT, TYPE=CAX4H, ELSET=PREFORM
1, 1, 3, 203, 201
*ELGEN, ELSET=PREFORM
1, 12, 2, 1, 7, 200, 100
*ELSET,ELSET=DTOP,GEN
601,612,1
*ELSET,ELSET=DSIDE,GEN
12,612,100
*ELEMENT,TYPE=IRS21A,ELSET=CONTACT
701,1401,1403,3001
702,1403,1405,3001
703,1405,1407,3001
704,1407,1409,3001
705,1409,1411,3001
706,1411,1413,3001
707,1413,1415,3001
708,1415,1417,3001
709,1417,1419,3001
710,1419,1421,3001
711,1421,1423,3001
712,1423,1425,3001
713,25,225,3001
714,225,425,3001
715,425,625,3001
716,625,825,3001
717,825,1025,3001
718,1025,1225,3001
719,1225,1425,3001
*SOLID SECTION, ELSET=PREFORM, MATERIAL=RUBBER
*MATERIAL, NAME=RUBBER
*HYPERELASTIC,POLYNOMIAL,N=1
80.,20.
********************
*NSET, NSET=DIE
3001, 
*RIGID SURFACE, TYPE=SEGMENTS,FILLET RADIUS=0.003, ELSET=CONTACT
START,  0.1500,  0.02500
LINE,   0.1100,  0.02500
LINE,   0.1100,  0.04525
LINE,   0.0795,  0.04525
CIRCL,  0.0660,  0.03175  ,  0.066,  0.04525
LINE,  -0.0100,  0.03175
*INTERFACE,ELSET=CONTACT
*FRICTION
.1, 
*SURFACE BEHAVIOR, PRESSURE-OVERCLOSURE=EXPONENTIAL
0.001,12.5
*BOUNDARY
DIE, 1
DIE, 6
AXIS, 1
BOTTOM, 2
*********************
*STEP, INC=200, NLGEOM
*STATIC
1.E-2, 1.0,  , 0.1
*BOUNDARY
DIE,2, ,-0.01223
*PRINT, CONTACT=YES
*EL FILE,ELSET=CONTACT,FREQUENCY=5
S,E
*NODE FILE,NSET=TOP,FREQUENCY=5
U, RF
*EL PRINT, ELSET=PREFORM
S, MISES
E, PEEQ
*NODE PRINT
U, RF
*END STEP