*HEADING
 : Test extension of contact surface, small sliding, CPE6
*NODE, NSET=NBLOCK1
  1,  0.0,  0.0,  0.0
  9,  8.0,  0.0,  0.0
 11,  0.0,  1.0,  0.0
 19,  8.0,  1.0,  0.0
 21,  0.0,  2.0,  0.0
 29,  8.0,  2.0,  0.0
*NODE, NSET=NBLOCK2
 51, -0.30, 2.05, 0.0
 52,  0.20, 2.05, 0.0
 53,  0.70, 2.05, 0.0
 61, -0.30, 2.55, 0.0
 62,  0.20, 2.55, 0.0
 63,  0.70, 2.55, 0.0
 71, -0.30, 3.05, 0.0
 72,  0.20, 3.05, 0.0
 73,  0.70, 3.05, 0.0
*NODE, NSET=NBLOCK3
 57,  7.20, 2.05, 0.0
 58,  7.70, 2.05, 0.0
 59,  8.20, 2.05, 0.0
 67,  7.20, 2.55, 0.0
 68,  7.70, 2.55, 0.0
 69,  8.20, 2.55, 0.0
 77,  7.20, 3.05, 0.0
 78,  7.70, 3.05, 0.0
 79,  8.20, 3.05, 0.0
*NGEN, NSET=NBLOCK1
  1,  9, 1
 11, 19, 1
 21, 29, 1
*NSET, NSET=NBASE
 1, 2, 3, 4, 5, 6, 7, 8, 9
*NSET, NSET=NALL
 NBLOCK1,
 NBLOCK2,
 NBLOCK3,
*ELEMENT, TYPE=CPE6, ELSET=EBLOCK1
 1,  1, 23, 21, 12, 22, 11
 2,  1,  3, 23,  2, 13, 12
*ELGEN, ELSET=EBLOCK1
 1, 4, 2, 2 
 2, 4, 2, 2 
*ELEMENT, TYPE=CPE6, ELSET=EBLOCK2
 100, 73, 71, 51, 72, 61, 62
 101, 73, 51, 53, 62, 52, 63
*ELEMENT, TYPE=CPE6, ELSET=EBLOCK3
 102, 79, 77, 57, 78, 67, 68
 103, 79, 57, 59, 68, 58, 69
*ELSET, ELSET=EALL
 EBLOCK1,
 EBLOCK2,
 EBLOCK3,
*ELSET, ELSET=ETOP
 1, 3, 5, 7
*SOLID SECTION, ELSET=EALL, MAT=MAT1
*MATERIAL,NAME=MAT1
*ELASTIC
 3e6, 0.2
*surface, NAME=SBLOCK1, TRIM=NO
 ETOP, S2
*surface, NAME=SBLOCK2, TRIM=YES
 101, S2
*surface, NAME=SBLOCK3, TRIM=YES
 103, S2
*CONTACT PAIR, INTERACTION=NOSEP, SMALL SLIDING, EXTENSION ZONE=0.15
 SBLOCK2, SBLOCK1
*CONTACT PAIR, INTERACTION=NOSEP, SMALL SLIDING, EXTENSION ZONE=0.10
 SBLOCK3, SBLOCK1
*SURFACE INTERACTION, NAME=NOSEP
 1.0,
*SURFACE BEHAVIOR, NO SEPARATION
*STEP, NLGEOM, INC=50
 Check that slave node intersect master surface at start of analysis
*STATIC
 ,1.0
*BOUNDARY
 NBASE,   1, 2, 0.0
 NBLOCK2, 1, 1, 0.0
 NBLOCK2, 2, 2, 0.0
 NBLOCK3, 1, 1, 0.0
 NBLOCK3, 2, 2, 0.0
*PRINT, CONTACT=YES
*NODE PRINT, F=0
*EL PRINT, F=0
*CONTACT PRINT, FREQ=50
*CONTACT FILE, FREQ=50
 CSTRESS, CDISP,
*END STEP