*HEADING
: SIMPLE CONTACT TEST, FINITE SLIDING CONTACT WITH ZERO FRICTION, DEFORMABLE
*RESTART,WRITE
*NODE
 1,0.0,0.0
 7,7.5,0.0
 11,,2.
 17,7.5,2.0
101,0.5,2.1
 103,2.25,2.1
 111,0.5,4.1
 113,2.25,4.1
 1001,,1.
 1007,7.5,1.
 1101,0.5,3.1
 1103,2.25,3.1
*NGEN,NSET=BASE
 1,7
*NGEN,NSET=TOP
 111,113
*NGEN
 11,17
 101,103
 1001,1007,2
 1101,1103
*ELEMENT,TYPE=CPE8,ELSET=STEEL
 1,1,3,13,11,2,1003,12,1001
 11,101,103,113,111,102,1103,112,1101
*ELGEN,ELSET=STEEL
 1,3,2
*ELSET,ELSET=ETOP
11, 
*ELSET,ELSET=EBOT
1,2,3
*surface, NAME=ASURF
ETOP,S1
*surface, NAME=BSURF
EBOT,S3
*CONTACT PAIR,INTERACTION=ROUGH,SMOOTH=0.1
ASURF,BSURF
*SURFACE INTERACTION, NAME=ROUGH
*SOLID SECTION,ELSET=STEEL,MATERIAL=STEEL
*MATERIAL,NAME=STEEL
*ELASTIC
  30.E6,0.3
******************************
*STEP,NLGEOM
CONTACT
*STATIC
0.67, 1.0
*CONTROLS,PARAMETERS=FIELD
1.0E-6, 
*BOUNDARY
 BASE,2
 1,1
 11,1
 1001,1
 TOP,2,,-.15
 TOP,1
*PRINT,CONTACT=YES
*CONTACT PRINT,SLAVE=ASURF
*EL PRINT
S,E
*NODE PRINT
U,RF
*OUTPUT, FIELD, FREQ=5
*CONTACT OUTPUT, VARIABLE=ALL,SLAVE=ASURF
*ELEMENT OUTPUT
S,E
*NODE OUTPUT
U,RF
*END STEP
*STEP,NLGEOM
 MOVE TOP ACROSS
*STATIC
  1.,10.,1.
*BOUNDARY,OP=NEW
 BASE,2
 1,1
 11,1
 1001,1
 TOP,2,,-.15
 TOP,1,,4.
*END STEP