*HEADING
 : Test extension of contact surface, finite sliding, ISL22A
*NODE, NSET=NBLOCK1
  1,  0.0, 8.0, 0.0
  9,  0.0, 0.0, 0.0
 11,  1.0, 8.0, 0.0
 19,  1.0, 0.0, 0.0
 21,  2.0, 8.0, 0.0
 29,  2.0, 0.0, 0.0
*NODE, NSET=NBLOCK2
 51,  2.0, 8.0, 0.0
 52,  2.0, 7.5, 0.0
 53,  2.0, 7.0, 0.0
 61,  2.5, 8.0, 0.0
 62,  2.5, 7.5, 0.0
 63,  2.5, 7.0, 0.0
 71,  3.0, 8.0, 0.0
 72,  3.0, 7.5, 0.0
 73,  3.0, 7.0, 0.0
*NODE, NSET=NBLOCK3
 57,  2.0, 1.0, 0.0
 58,  2.0, 0.5, 0.0
 59,  2.0, 0.0, 0.0
 67,  2.5, 1.0, 0.0
 68,  2.5, 0.5, 0.0
 69,  2.5, 0.0, 0.0 
 77,  3.0, 1.0, 0.0
 78,  3.0, 0.5, 0.0
 79,  3.0, 0.0, 0.0
*NSET, NSET=NMOVE2
 71, 73
*NSET, NSET=NMOVE3
 77, 79
*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=CAX8, ELSET=EBLOCK1
 1, 23, 21, 1, 3, 22, 11, 2, 13
*ELGEN, ELSET=EBLOCK1
 1, 4, 2, 1
*ELEMENT, TYPE=CAX8, ELSET=EBLOCK2
 100, 73, 71, 51, 53, 72, 61, 52, 63 
*ELEMENT, TYPE=CAX8, ELSET=EBLOCK3
 101, 79, 77, 57, 59, 78, 67, 58, 69
*ELSET, ELSET=EALL
 EBLOCK1,
 EBLOCK2,
 EBLOCK3,
*ELSET, ELSET=ETOP
 1, 2, 3, 4
*SOLID SECTION, ELSET=EALL, MAT=MAT1
*MATERIAL,NAME=MAT1
*ELASTIC
 3e6, 0.2
*ELEMENT, TYPE=ISL22A, ELSET=SLIDE1
 201, 51, 52, 53
*ELEMENT, TYPE=ISL22A, ELSET=SLIDE2
 202, 57, 58, 59
*ELSET,ELSET=SLIDE
 SLIDE1, SLIDE2 
*SLIDELINE, ELSET=SLIDE1, TYPE=PARABOLIC, EXTENSION ZONE=0.15 
 21,22,23 
*SLIDELINE, ELSET=SLIDE2, TYPE=PARABOLIC, EXTENSION ZONE=0.10 
 27,28,29
*INTERFACE, ELSET=SLIDE1
*INTERFACE, ELSET=SLIDE2
*STEP, NLGEOM, INC=50
*STATIC
 0.1,1.0
*BOUNDARY, OP=NEW
 NBASE,  1, 2, 0.0
 NMOVE2, 2, 2, 0.0
 NMOVE3, 2, 2, 0.0
*DLOAD, OP=NEW
 EBLOCK2, P1, 2.0
 EBLOCK3, P1, 2.0
*PRINT, CONTACT=YES
*NODE PRINT, F=0
*EL PRINT, F=50,ELSET=SLIDE
S,E
*OUTPUT, FIELD, FREQ=50
*ELEMENT OUTPUT,ELSET=SLIDE
S,E
*END STEP
*STEP, NLGEOM, INC=50
*STATIC
 0.1,1.0
*BOUNDARY, OP=NEW
 NBASE,  1, 2, 0.0
 NMOVE2, 2, 2, 0.3
 NMOVE3, 2, 2,-0.2
*PRINT, CONTACT=YES
*NODE PRINT, F=50
 U,
*END STEP