*HEADING
: TWO DIMENSIONAL HEAT TRANSFER INTERFACE
          GAP CONDUCTANCE
          TIED CONTACT WITH ADJUST
  WARNING MESSAGE FOR CONTACT STABILIZATION BEING IGNORED
  FLUXES ARE LINEAR IN TEMPERATURE GRADIENT; FIRST & THIRD STEPS MATCH
*PREPRINT,CONTACT=YES
*RESTART,WRITE
*NODE
 1,  10.00,   0.00
 2,  11.00,   0.00
 3,  11.00,   0.50
 4,  10.00,   0.50
 5,  10.50,   0.00
 6,  11.00,   0.25
 7,  10.50,   0.50
 8,  10.00,   0.25
 9,  10.00,   0.55
10,  11.00,   0.55
11,  11.00,   1.00
12,  10.00,   1.00
13,  10.50,   0.55
14,  11.00,   0.775
15,  10.50,    1.0
16,  10.00,   0.775
17,  10.00,  -1.00
18,  11.00,  -1.00
19,  11,      0.0
20,  10,      0.0
21,  10.50,  -1.0
22,  11.00,  -0.50
23,  10.50,  0.0
24,  10.00,  -0.50
*NSET, NSET=SIDE3
11,12,15
*NSET, NSET=GAP1,GENERATE
17,24,1
*ELEMENT,TYPE=DC2D8,ELSET=MID
1, 1,2,3,4,5,6,7,8
*ELEMENT,TYPE=DC2D8,ELSET=TOP
2,9,10,11,12,13,14,15,16
*ELEMENT,TYPE=DC2D8,ELSET=BOT
3,17,18,19,20,21,22,23,24
*ELSET,ELSET=SOLID
1,2,3
*surface,NAME=SURF1
TOP,S1
*surface, NAME=SURF2
MID,S3
*surface, NAME=SURF3
MID,S1
*surface, NAME=SURF4
BOT,S3
*CONTACT PAIR, INTERACTION=TIED, TIED, ADJUST=0.1
SURF1,SURF2
*CONTACT
*CONTACT INCLUSIONS,ALL EXTERIOR
*CONTACT PROPERTY ASSIGNMENT
 ,,GAPS
*SURFACE INTERACTION,NAME=TIED
*SURFACE INTERACTION, NAME=GAPS
*GAP CONDUCTANCE
10.,0.
10.,1.
*SOLID SECTION,ELSET=SOLID,MATERIAL=SOLMAT
*MATERIAL,NAME=SOLMAT
*CONDUCTIVITY
1.,
*AMPLITUDE,NAME=AMP_STAB,TIME = TOTAL TIME
 0,1,800,1.
*STEP
*HEAT TRANSFER, STEADY STATE
*NODE FILE
 NT,
 RFL,
*EL PRINT,FREQ=0
*NODE PRINT
 NT,
 RFL,
*BOUNDARY,OP=NEW
SIDE3,11,,100.
GAP1,11,,50.
*CONTACT PRINT
*CONTACT FILE
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*NODE FILE
 NT,
 RFL,
*EL PRINT,FREQ=0
*NODE PRINT
 NT,
 RFL,
*BOUNDARY,OP=NEW
SIDE3,11,,100.
GAP1,11,,100.
*CONTACT PRINT
*CONTACT FILE
*CONTACT
*CONTACT STABILIZATION,AMPLITUDE=AMP_STAB
 SURF3,SURF4
*END STEP
*STEP
*HEAT TRANSFER, STEADY STATE
*NODE FILE
 NT,
 RFL,
*EL PRINT,FREQ=0
*NODE PRINT
 NT,
 RFL,
*BOUNDARY,OP=NEW
SIDE3,11,,150.
GAP1,11,,100.
*CONTACT PRINT
*CONTACT FILE
*END STEP