*HEADING
: DEFORMATION OF PLATE BY A RIGID PUNCH
MODEL 1 CONTAINS USER SUBROUTINE DEFINED RIGID SURFACE
MODEL 2 CONTAINS AN ANALYTICAL RIGID SURFACE
**
**     MODEL DEFINITION 1
**
*NODE
*NGEN, NSET=FRONT1
*NGEN, NSET=BEHIND1
*NFILL,NSET=NALL1
FRONT1, BEHIND1, 10, 100
*NSET, NSET=SIDES1,GEN
*NSET, NSET=BOUND1
FRONT1,BEHIND1,SIDES1
*ELEMENT, TYPE=S4R, ELSET=EALL1
*ELGEN, ELSET=EALL1
*SHELL SECTION, ELSET=EALL1, MATERIAL=ELASTIC1
1.,
*MATERIAL, NAME=ELASTIC1
*ELASTIC
3.0E5, 0.3
*NODE, NSET=CYLSURF1
*surface, NAME=SLAVE1
EALL1,SPOS
*rigid body,analytical surface=MASTER1, REFNOD=99991
*surface,NAME=MASTER1, TYPE=USER
*CONTACT PAIR, INTERACTION=SURF1, TYPE=SURFACE
SLAVE1,MASTER1
*SURFACE INTERACTION, NAME=SURF1
*BOUNDARY
99991,1,2
99991,4,6
BOUND1,1,3
**
**   MODEL DEFINITION 2
**
*NODE
*NGEN, NSET=FRONT2
*NGEN, NSET=BEHIND2
*NFILL,NSET=NALL2
FRONT2, BEHIND2, 10, 100
*NSET, NSET=SIDES2,GEN
*NSET, NSET=BOUND2
FRONT2,BEHIND2,SIDES2
*ELEMENT, TYPE=S4R, ELSET=EALL2
*ELGEN, ELSET=EALL2
*SHELL SECTION, ELSET=EALL2, MATERIAL=ELASTIC2
1.,
*MATERIAL, NAME=ELASTIC2
*ELASTIC
3.0E5, 0.3
*NODE, NSET=CYLSURF2
*surface, NAME=SLAVE2
EALL2,SPOS
*rigid body,analytical surface=MASTER2, REFNOD=99992
*surface,NAME=MASTER2, TYPE=REVOLUTION
START,6.8301,6.8301
LINE,4.3301,2.5
CIRCL,0,0,0,5
*CONTACT PAIR, INTERACTION=SURF2, TYPE=SURFACE
SLAVE2,MASTER2
*SURFACE INTERACTION, NAME=SURF2
*BOUNDARY
99992,1,2
99992,4,6
BOUND2,1,3
**
** STEP DEFINITION
**
*STEP, INC=40, NLGEOM
*STATIC
0.25,1.
*CLOAD
99991,3,-30000
99992,3,-30000
*NODE PRINT
U,
*NODE FILE,NSET=NALL1,FREQ=9999
U,
*ELPRINT
S,
*ELFILE,FREQ=9999
S,
*END STEP