*HEADING
*preprint,model=yes,contact=yes
*amplitude,name=tfstep
0,1,2,1
*NODE,NSET=ROAD
 99999,   0.0,   0.0, 8.5
*SYMMETRIC MODEL GENERATION,PERIODIC=VARIABLE,ELEMENT=500,NODE=500
 0.0, 0.0, 0.0,    0.0, 1.0, 0.0
15,4
4,1.5
2,2.0
4,1.5
4,1.0
**15.0,24
*SYMMETRIC RESULTS TRANSFER, STEP=1,INC=1
*SURFACE,TYPE=CYLINDER,NAME=SROAD
 0., 0.,8.5,   0, 1.,8.5
 1, 0,8.5
 START, -20, 0
 LINE,  20, 0
*RIGID BODY,REF NODE=ROAD,ANALYTICAL SURFACE=SROAD
*ELSET,ELSET=FOOT,GEN
55,65,5
105,115,5
155,165,5
555,565,5
605,615,5
655,665,5
8555,8565,5
8605,8615,5
8655,8665,5
8155,8165,5
8105,8115,5
8055,8065,5
*SURFACE,NAME=STREAD
 FOOT, S4
*CONTACT PAIR,INTERACTION=SRIGID
 STREAD, SROAD
*SURFACE INTERACTION,NAME=SRIGID,TRACKING THICKNESS=0.1
*FRICTION
 0.0
*STEP,INC=100,NLGEOM=YES
*STATIC,long term
 1.0, 1.0
*boundary,op=new
rim,1,6
road,1,6
*dsload,op=new
inside,p,200E3
*output,field,freq=999
*element output
s
*node output
u
*contact output,secondary=stread,main=sroad
cstress
*OUTPUT,HISTORY,FREQ=0
*NODE OUTPUT,NSET=RIM
 RF
*END STEP
******************************************
*STEP,INC=100,NLGEOM=YES
 2:  FOOTPRINT (Displacement controlled)
*STATIC, LONG TERM
 0.2, 1.0
*BOUNDARY,OP=NEW
 RIM,  1, 6
 ROAD, 1, 2
 ROAD, 4, 6
 ROAD, 3, , -0.08
*output,field,freq=999
*element output
s
*node output
u
*contact output,secondary=stread,main=sroad
cstress
*OUTPUT,HISTORY,FREQ=1
*NODE OUTPUT,NSET=RIM
 RF
*END STEP
****************************************
*STEP,INC=100,NLGEOM=YES
 3:  FOOTPRINT (Load controlled)
*STATIC, LONG TERM
 1.0, 1.0
*BOUNDARY,OP=NEW
 RIM,  1, 6
 ROAD, 1, 2
 ROAD, 4, 6
*CLOAD, OP=NEW
 ROAD, 3, -165000.
*END STEP
******************************************
*STEP,INC=300,NLGEOM=YES,UNSYMM=YES
 1:  STRAIGHT LINE ROLLING (Full braking)
*STEADY STATE TRANSPORT, LONG TERM
 1.0, 1.0
*CHANGE FRICTION,INTERACTION=SRIGID
*FRICTION,SLIP=0.02
 1.0
*TRANSPORT VELOCITY
 NTIRE, 0.2
*MOTION,TYPE=VELOCITY,TRANSLATION
 NTIRE, 1, , -2.7778
*END STEP
******************************************
*STEP,INC=500,NLGEOM=YES,UNSYMM=YES
 1:  STRAIGHT LINE ROLLING (Full braking)
*STEADY STATE TRANSPORT, LONG TERM,direct
 0.25, 1.0
*control,parameter=time incrementation
30,30,30,30
*TRANSPORT VELOCITY
 NTIRE, 0.5
*END STEP