*HEADING
: SIMPLE CONTACT TEST, 3-D TIED CONTACT, DEFORMABLE
** C3D10
**
*NODE
       1,          0.,          0.,          8.
       2,         0.5,          0.,          8.
       3,          1.,          0.,          8.
       4,          0.,         0.5,          8.
       5,         0.5,         0.5,          8.
       6,          1.,         0.5,          8.
       7,          0.,          1.,          8.
       8,         0.5,          1.,          8.
       9,          1.,          1.,          8.
      10,          0.,          0.,          9.
      11,         0.5,          0.,          9.
      12,          1.,          0.,          9.
      13,          0.,         0.5,          9.
      14,          1.,         0.5,          9.
      15,          0.,          1.,          9.
      16,         0.5,          1.,          9.
      17,          1.,          1.,          9.
      18,          0.,          0.,         10.
      19,         0.5,          0.,         10.
      20,          1.,          0.,         10.
      21,          0.,         0.5,         10.
      22,         0.5,         0.5,         10.
      23,          1.,         0.5,         10.
      24,          0.,          1.,         10.
      25,         0.5,          1.,         10.
      26,          1.,          1.,         10.
      27,        -0.2,        -0.2,         9.9
      28,         0.5,        -0.2,         9.9
      29,         1.2,        -0.2,         9.9
      30,        -0.2,         0.5,         9.9
      31,         0.5,         0.5,         9.9
      32,         1.2,         0.5,         9.9
      33,        -0.2,         1.2,         9.9
      34,         0.5,         1.2,         9.9
      35,         1.2,         1.2,         9.9
      36,        -0.2,        -0.2,        10.9
      37,         0.5,        -0.2,        10.9
      38,         1.2,        -0.2,        10.9
      39,        -0.2,         0.5,        10.9
      40,         1.2,         0.5,        10.9
      41,        -0.2,         1.2,        10.9
      42,         0.5,         1.2,        10.9
      43,         1.2,         1.2,        10.9
      44,        -0.2,        -0.2,        11.9
      45,         0.5,        -0.2,        11.9
      46,         1.2,        -0.2,        11.9
      47,        -0.2,         0.5,        11.9
      48,         0.5,         0.5,        11.9
      49,         1.2,         0.5,        11.9
      50,        -0.2,         1.2,        11.9
      51,         0.5,         1.2,        11.9
      52,         1.2,         1.2,        11.9
**
**
*ELEMENT, TYPE=C3D10, ELSET=PROP1
       1,       1,       7,      18,       3,       4,      13,      10,
       2,       5,      11
       2,      24,      18,       7,      26,      21,      13,      15,
      25,      22,      16
       3,       9,       3,      26,       7,       6,      14,      17,
       8,       5,      16
       4,      20,      26,       3,      18,      23,      14,      12,
      19,      22,      11
       5,       3,       7,      18,      26,       5,      13,      11,
      14,      16,      22
       6,      27,      33,      44,      29,      30,      39,      36,
      28,      31,      37
       7,      50,      44,      33,      52,      47,      39,      41,
      51,      48,      42
       8,      35,      29,      52,      33,      32,      40,      43,
      34,      31,      42
       9,      46,      52,      29,      44,      49,      40,      38,
      45,      48,      37
      10,      29,      33,      44,      52,      31,      39,      37,
      40,      42,      48
**
** Prop1
**
*SOLID SECTION, ELSET=PROP1, MATERIAL=MAT1
*MATERIAL, NAME=MAT1
*ELASTIC
 30.0E6, 0.0
**
*RESTART, WRITE, FREQUENCY=3
**
**
** TOP_DISP
**
*NSET,NSET=TOP_NODE,GENERATE
      44, 52
*BOUNDARY, OP=NEW
 TOP_NODE, 1, 2, 0.
**
** Bot_DISP
**
*NSET,NSET=BOT_NODE,GENERATE
       1, 9
*BOUNDARY, OP=NEW
 BOT_NODE, 1, 3, 0.
**
** TOP CONTACT SURFACE
**
*surface,NAME=BSURF
       6, S2
       8, S2
**
** BOTTOM CONTACT SURFACE
**
*surface,NAME=TSURF
       2, S2
       4, S2
*CONTACT PAIR,INTERACTION=SLIDE,TIED,ADJUST=0.2,SUPPLEMENTARY=YES
TSURF, BSURF
*SURFACE INTERACTION,NAME=SLIDE
*SURFACE BEHAVIOR, AUGMENTED LAGRANGE
*FRICTION
0., 
**
** step 1: pull two blocks apart
**
*STEP ,NLGEOM
*STATIC
0.25,1.
*BOUNDARY
 TOP_NODE, 3,, 0.1
*CONTACT PRINT,SLAVE=TSURF,MASTER=BSURF
*CONTACT FILE,SLAVE=TSURF,MASTER=BSURF,F=4
*EL FILE ,FREQ=4
 S,
 E,
*NODE FILE,FREQ=4
 RF,
*ENERGY PRINT
*EL PRINT ,SUM=NO
 S,
 E,
*NODE PRINT,SUM=NO
 RF,
*END STEP
**
** step 2: slide top cube to the right
**
*STEP,NLGEOM, INC=50
*STATIC
0.1, 1.0
*BOUNDARY
 TOP_NODE, 1,, -0.1
*END STEP