*HEADING
THERMALLY COUPLED CONTACT, FINITE SLIDING CONTACT 
WITH FRICTIONAL HEAT GENERATION, DEFORMABLE
**
** See ch. 1.6.7 of ABAQUS/Verification Manual
**
*NODE,NSET=ALL
1,1.,0.
7,7.,0.
11,1.,1.
17,7.,1.
101,3.,1.
105,5.,1.
111,3.,2.
115,5.,2.
*NGEN,NSET=ALL
1,7,1
11,17,1
101,105,1
111,115,1
*NSET,NSET=QA_TEST
ALL,
*NSET,NSET=BOT,GEN
1,7,1
*NSET,NSET=TOP,GEN
111,115,1
**
*ELEMENT,TYPE=CPE4RT,ELSET=DEAD
1,1,3,13,11
3,5,7,17,15
*SOLID SECTION,ELSET=DEAD,MATERIAL=DEAD
*MATERIAL,NAME=DEAD
*ELASTIC
30.E6,.3
*CONDUCTIVITY
10.000, 
*SPECIFIC HEAT
0.001, 
*DENSITY
1000., 
**
*ELEMENT,TYPE=CPE4RT,ELSET=ACTIVE
2,3,5,15,13
101,101,103,113,111
102,103,105,115,113
*SOLID SECTION,ELSET=ACTIVE,MATERIAL=ACTIVE
*MATERIAL,NAME=ACTIVE
*ELASTIC
30.E6,.3
*CONDUCTIVITY
10., 
*DENSITY
1000., 
*SPECIFIC HEAT
.001, 
**
*ELSET,ELSET=ETOP
101,102
*ELSET,ELSET=EBOT,GENERATE
1,3,1
*ELSET,ELSET=EALL
ACTIVE,DEAD
**
*NSET,NSET=CONST
111,115
*EQUATION
2, 
CONST,1,1.0,113,1,-1.0
2
CONST,2,1.0,113,2,-1.0
**
*AMPLITUDE, NAME=SLIDE, VALUE=RELATIVE, TIME=STEP,DEFINITION=SMOOTH STEP
0.0, 0.0,  20., 1.0,  40., 0.0,  60., -1.0
80., 0.0,  100., 0.0
**
*AMPLITUDE, NAME=RAMP,DEFINITION=SMOOTH STEP
0.0,0.0,10.,1.0
**
*INITIAL CONDITIONS,TYPE=TEMP
ALL,20.0
**
*SURFACE, NAME=ASURF
ETOP,S1
*SURFACE, NAME=BSURF
EBOT,S3
**
*STEP
STEP 1
*DYNAMIC TEMPERATURE-DISPLACEMENT, EXPLICIT, DIRECT
4e-3,10.
*CONTACT PAIR, INTERACTION=ROUGH,WEIGHT=0.0
ASURF,BSURF
*SURFACE INTERACTION, NAME=ROUGH
*FRICTION
0.1, 
*GAP CONDUCTANCE,PRESSURE
20.,   0.
20.,100.
*GAP HEAT GENERATION
.50, 
*BOUNDARY,OP=NEW
BOT,2,2
1,1,1
7,1,1
113,1,1
*CLOAD,AMP=RAMP
113,2,-200.
*********************
*FILE OUTPUT,N=1
*NODE FILE,NSET=ALL
NT,
********************
*OUTPUT,FIELD,NUM=1
*NODE OUTPUT,NSET=QA_TEST
NT,
*NODE OUTPUT,NSET=ALL
U,
************
*CONTACT OUTPUT
CSTRESS,
*ELEMENT OUTPUT
S,
********************
***OUTPUT,HISTORY, FREQUENCY=500
***NODE OUTPUT,NSET=ALL
**U,NT
*******************
*OUTPUT,HISTORY, FREQUENCY=99999
*ENERGY OUTPUT,VAR=ALL
******************
*END STEP
*STEP
STEP 2 - GENERATE 120 UNITS OF HEAT, 60 UNITS ABSORBED
*DYNAMIC TEMPERATURE-DISPLACEMENT, EXPLICIT, DIRECT
2.5e-3,100.
*BOUNDARY, OP=MOD, AMPLITUDE=SLIDE
113,1,1,1.5
*END STEP
**
*STEP
STEP 3 - GO TO STEADY STATE - SHOULD GO TO TEMP=27.5
*DYNAMIC TEMPERATURE-DISPLACEMENT, EXPLICIT, DIRECT
3e-3,10.
*FIXED MASS SCALING, ELSET=EALL,FACTOR=1.E4
*END STEP