*HEADING
: SELF CONTACT TEST, TRIANGULAR UNDERLYING ELEMENTS, CLOSED SURFACE
**
*Node
**
**
**
*ELEMENT, TYPE=CPE6MH, ELSET=WHEEL
**
*SOLID SECTION, ELSET=WHEEL, MATERIAL=SIMPLE
1.,
*MATERIAL,NAME=SIMPLE
*HYPERELASTIC,N=1
1E3,
**
*Elset, elset=_INSIDE_S2
*Elset, elset=_INSIDE_S1
*Surface, type=ELEMENT, name=INSIDE
_INSIDE_S2, S2
_INSIDE_S1, S1
*Elset, elset=_OUTSIDE_S2
*Elset, elset=_OUTSIDE_S1
*Surface, type=ELEMENT, name=OUTSIDE
_OUTSIDE_S2, S2
_OUTSIDE_S1, S1
**
*rigid body,analytical surface=rtop, REF NODE=1001
*surface,TYPE=SEGMENTS, NAME=RTOP
START, 0.0, 6.0
CIRCL, 1.0, 5.0, 0.0, 5.0
CIRCL, 0.0, 4.0, 0.0, 5.0
CIRCL,-1.0, 5.0, 0.0, 5.0
CIRCL, 0.0, 6.0, 0.0, 5.0
*rigid body,analytical surface=rbase, REF NODE=1002
*surface,TYPE=SEGMENTS, NAME=RBASE
START,-15.0, -4.0
LINE,   4.0, -4.0
*CONTACT PAIR, INTERACTION=BASE
OUTSIDE, RBASE
*SURFACE INTERACTION, NAME=BASE
1.0,
*SURFACE BEHAVIOR, PRESSURE-OVERCLOSURE=HARD
*FRICTION, ROUGH
*CONTACT PAIR, INTERACTION=TOP
OUTSIDE, RTOP
*SURFACE INTERACTION, NAME=TOP
1.0,
*FRICTION, ROUGH
*CONTACT PAIR, INTERACTION=INSIDE
INSIDE,
*SURFACE INTERACTION, NAME=INSIDE
1.0,
**************************************
**
*STEP, NLGEOM, INC=100
*STATIC
0.1,1.0,,0.4
*BOUNDARY
228,1,1
365,1,1
1002, 1,2
1002, 6,6
1001, 6,6
1001, 1,1
1001, 2,,-6.2
*contact controls, perrmx=100., maxchp=1000, slave=OUTSIDE, master=RBASE
*PRINT,CONTACT=YES
*NODE PRINT, F=0
*EL PRINT,F=0
*CONTACT PRINT,FREQ=999
*CONTACT FILE,FREQ=999
*NODE FILE,FREQ=999
U,RF
*ENDSTEP
*STEP,NLGEOM,INC=100
*STATIC
0.01,1.0
*BOUNDARY, OP=NEW
1001,1,1,-10.0
1001, 2,,-6.2
1001,6,6,-8.0
1002, 1,2
1002, 6,6
*contact controls, perrmx=100., maxchp=1000, slave=OUTSIDE, master=RBASE
*ENDSTEP