*HEADING 
CONCENTRIC RINGS WITH INITIAL OVERCLOSURE [CPS4R]
TEST OF 2D FINITE SLIDING KINEMATIC CONTACT WITH TABULAR SOFTENED BEHAVIOR
*NODE, NSET=ODB_NSET
999,0.,0.
1,3.5,0.0
17,3.5,0.0
18,4.7,0.0
34,4.7,0.0
35,4.6,0.0
51,4.6,0.0
52,6.1,0.0
68,6.1,0.0
*NGEN,LINE=C,NSET=RAD_1
1,17,1,999,,,,0.0,0.0,1.0
*NGEN,LINE=C,NSET=RAD_2
18,34,1,999,,,,0.0,0.0,1.0
*NGEN,LINE=C,NSET=RAD_3
35,51,1,999,,,,0.0,0.0,1.0
*NGEN,LINE=C,NSET=RAD_4
52,68,1,999,,,,0.0,0.0,1.0
*NSET,NSET=INNER,GEN
1,17,1
*NODE
** BE EXACT WRT THESE COORDINATES
    9,   -3.5000    , 1.13088E-14 
   13,  -9.75450E-15, -3.5000     
   22,    0.0000    ,  4.7000     
   26,   -4.7000    , 1.51861E-14 
   30,  -1.30989E-14, -4.7000     
   39,    0.0000    ,  4.6000     
   43,   -4.6000    , 1.48630E-14 
   47,  -1.28202E-14, -4.6000     
   56,    0.0000    ,  6.1000     
   60,   -6.1000    , 1.97096E-14 
   64,  -1.70007E-14, -6.1000     
*ELEMENT,TYPE=CPS4R
1,1,18,19,2
16,16,33,18,1
17,35,52,53,36
32,50,67,52,35
*ELGEN,ELSET=INELE
1,15,1,1,
*ELGEN,ELSET=OUTELE
17,15,1,1
*ELSET,ELSET=INELE,GEN
1,16,1
*ELSET,ELSET=OUTELE,GEN
17,32,1
*SOLID SECTION, ELSET=INELE, MATERIAL=MAT_1
1.0, 
*SOLID SECTION, ELSET=OUTELE, MATERIAL=STEEL
1.0, 
*MATERIAL, NAME=STEEL
*DENSITY
8.0100E-06, 
*ELASTIC, TYPE=ISO
206800.,.32
*MATERIAL, NAME=MAT_1
*DENSITY
8.0100E-06, 
*ELASTIC,TYPE=ISOTROPIC
206800.,.32
*ELSET,ELSET=ODB_ESET
INELE, OUTELE
*NSET, NSET=ODB_NSET
ODB_NSET, RAD_1, RAD_2, RAD_3
RAD_4, INNER
*NSET,NSET=NODERES,ELSET=INELE
*NSET,NSET=NODERES,ELSET=OUTELE
*SURFACE,NAME=IN_SURF
INELE,S2
*SURFACE,NAME=OUT_SURF
OUTELE,S4
**
**
*STEP
*DYNAMIC,EXPLICIT
,1.0E-2
*CONTACT PAIR,INTERACTION=NOFRIC
OUT_SURF,IN_SURF
*SURFACE INTERACTION,NAME=NOFRIC,PAD THICKNESS=-9.80785E-02
*SURFACE BEHAVIOR,PRESSURE-OVERCLOSURE=TABULAR
0.0,-9.80785E-02
1.0E3,0.0
*BOUNDARY
INNER,1,2
52,2,2
60,2,2
**
** Output requests for postprocessing
**
*OUTPUT,FIELD,VAR=PRESELECT
**
** Output requests for qa testing
**
*NSET,NSET=QA_TESTN
7,8,9,10
18,19,20,24
29,30,32,33
*OUTPUT,FIELD,NUMBER=1
*NODE OUTPUT,NSET=QA_TESTN
U,
*OUTPUT,HISTORY,TIME INTERVAL=0.005
*ENERGY OUTPUT,VAR=PRESELECT
*END STEP