*HEADING
	3-D ELEMENT IN CONTACT WITH A RIGID ELEMENT.
	NORMALS ARE MODIFIED. VERIFICATION FOR *CLEARANCE OPTION.
*NODE
1,
2,1.,
3,1.,1.05,
4,,1.05
5,,,1.0
6,1.,,1.0
7,1.,1.05,1.0
8,,1.05,1.0
11,-1.,1.,-1.0
12,2.,1.,-1.0
13,-1.,1.,2.0
14,2.,1.,2.0
15,1.0,1.5,1.0
*ELEMENT,TYPE=C3D8,ELSET=BOT
1,1,2,3,4,5,6,7,8
*ELEMENT,TYPE=R3D4,ELSET=TOP
11,12,11,13,14
*RIGID BODY,ELSET=TOP,REF NODE=15
*SOLID SECTION,ELSET=BOT,MATERIAL=MAT
*MATERIAL,NAME=MAT
*ELASTIC
3.E7,0.0
*surface,NAME=TOPS
TOP,SNEG
*surface,NAME=SECONDARY
BOT,S5
*CLEARANCE,SECONDARY=SECONDARY,MAIN=TOPS,TABULAR
3,0.0,-1.0,-1.0,1.0
4,0.0,-1.0,-1.0,1.0
7,0.0,-1.0,-1.0,1.0
8,0.0,-1.0,-1.0,1.0
*SURFACE INTERACTION,NAME=ISLS
*CONTACT PAIR,INTERACTION=ISLS, SMALL SLIDING
SECONDARY,TOPS
*BOUNDARY
1,1,3
2,1,3
5,1,3
6,1,3
15,1,1
15,3,6
*STEP,INC=50,NLGEOM
*STATIC
0.1,1.0
*BOUNDARY
15,2,2,-0.2
*PRINT,CONTACT=YES
*NODE FILE,FREQ=100
U,RF
*EL FILE,FREQ=100
S, 
E, 
*ENDSTEP