*HEADING
 PORE PRESSURE COUPLED TIE (C3D8P)
 File name: xtie_c3d8p
*NODE,NSET=NALL
       1,          1.,        12.5
       2,          2.,        12.5
       3,          2.,         15.
       4,          1.,         15.
       5,          1.,        12.5,          1.
       6,          2.,        12.5,          1.
       7,          2.,         15.,          1.
       8,          1.,         15.,          1.
**
    1001,          1.,        10.0000001,
    1002,          2.,        10.0000001
    1003,          2.,        12.5
    1004,          1.,        12.5
    1005,          1.,        10.0000001,          1.,
    1006,          2.,        10.0000001,          1.,
    1007,          2.,        12.5,          1.
    1008,          1.,        12.5,          1.
**
     101,          3.,        12.5
     102,          4.,        12.5
     103,          4.,         15.
     104,          3.,         15.
     105,          3.,        12.5,          1.
     106,          4.,        12.5,          1.
     107,          4.,         15.,          1.
     108,          3.,         15.,          1.
**
    1101,          3.,        10.0000001,
    1102,          4.,        10.0000001
    1103,          4.,        12.5
    1104,          3.,        12.5
    1105,          3.,        10.0000001,          1.,
    1106,          4.,        10.0000001,          1.,
    1107,          4.,        12.5,          1.
    1108,          3.,        12.5,          1.
**
     201,          5.,        12.5
     202,          6.,        12.5
     203,          6.,         15.
     204,          5.,         15.
     205,          5.,        12.5,          1.
     206,          6.,        12.5,          1.
     207,          6.,         15.,          1.
     208,          5.,         15.,          1.
**
    1201,          5.,        10.0000001,
    1202,          6.,        10.0000001
    1203,          6.,        12.5
    1204,          5.,        12.5
    1205,          5.,        10.0000001,          1.,
    1206,          6.,        10.0000001,          1.,
    1207,          6.,        12.5,          1.
    1208,          5.,        12.5,          1.
**
     301,          7.,        12.5
     302,          8.,        12.5
     303,          8.,         15.
     304,          7.,         15.
     305,          7.,        12.5,          1.
     306,          8.,        12.5,          1.
     307,          8.,         15.,          1.
     308,          7.,         15.,          1.
**
    1301,          7.,        10.0000001,
    1302,          8.,        10.0000001
    1303,          8.,        12.5
    1304,          7.,        12.5
    1305,          7.,        10.0000001,          1.,
    1306,          8.,        10.0000001,          1.,
    1307,          8.,        12.5,          1.
    1308,          7.,        12.5,          1.
**
*NSET,NSET=BOTTOM
1001,1002,1005,1006,
1101,1102,1105,1106,
1201,1202,1205,1206,
1301,1302,1305,1306
*NSET,NSET=TOP
3,4,7,8
103,104,107,108
203,204,207,208
303,304,307,308
*ELEMENT, TYPE=C3D8P, ELSET=SOLID
1, 1, 2, 3, 4, 5, 6, 7, 8
101, 101, 102, 103, 104, 105, 106, 107, 108
201, 201, 202, 203, 204, 205, 206, 207, 208
301, 301, 302, 303, 304, 305, 306, 307, 308
2, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008
102, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108
202, 1201, 1202, 1203, 1204, 1205, 1206, 1207, 1208
302, 1301, 1302, 1303, 1304, 1305, 1306, 1307, 1308
*SOLID SECTION, ELSET=SOLID, MATERIAL=SOLMAT
*MATERIAL, NAME=SOLMAT
*ELASTIC
30.E6,0.0
*PERMEABILITY,SPECIFIC=1.0
 1.E-1, 
** SURFACES
**
*SURFACE, NAME=ASURF1
1, S3
*SURFACE, NAME=BSURF1
2, S5
*TIE,NAME=TIE1
BSURF1, ASURF1
**
*SURFACE, NAME=ASURF2
101, S3
*NSET,NSET=BS2
1103,1104,1107,1108
*SURFACE, NAME=BSURF2,TYPE=NODE
BS2,
*TIE,NAME=TIE2
BSURF2, ASURF2
**
*NSET,NSET=AS3
201,202,205,206
*SURFACE, NAME=ASURF3,TYPE=NODE
AS3,
*SURFACE, NAME=BSURF3
202, S5
*TIE,NAME=TIE3
BSURF3, ASURF3
**
*NSET,NSET=AS4
301,302,305,306
*SURFACE, NAME=ASURF4,TYPE=NODE
AS4,
*NSET,NSET=BS4
1303,1304,1307,1308
*SURFACE, NAME=BSURF4,TYPE=NODE
BS4,
*TIE,NAME=TIE4
BSURF4, ASURF4
**
*INITIAL CONDITIONS,TYPE=RATIO
NALL,1.
**
*STEP
*SOILS, CONSOLIDATION
 0.1 , 1.
*BOUNDARY
BOTTOM,1,3
TOP,1,1
TOP,3,3
BOTTOM,8,8,1
TOP,8,8,2
NALL,1,1
NALL,3,3
*DLOAD
  1,P5,10
101,P5,10
201,P5,10
301,P5,10
*NODE PRINT,F=10
POR,
*NODE FILE,F=10
POR,
*EL PRINT
*END STEP