*HEADING
 STEADY-STATE ROLLING ANALYSIS OF A TIRE:
 STEP 1: FULL BRAKING ANALYSIS
 STEP 2: 2 DEGREE SLIP
 UNITS: KG, M
*RESTART,READ,STEP=1,WRITE,FREQ=999
******************************************
*STEP,INC=300,NLGEOM=YES,UNSYMM=YES
 1:  STRAIGHT LINE ROLLING (Full braking)
*STEADY STATE TRANSPORT, INERTIA=YES
 0.1, 1.0
*CHANGE FRICTION,INTERACTION=SRIGID
*FRICTION,SLIP=0.02
 1.0
*TRANSPORT VELOCITY
 NTIRE, 25.0
*MOTION,TYPE=VELOCITY,TRANSLATION
 NTIRE, 1, , 8.33334
*NODE PRINT,FREQ=0
*EL PRINT,FREQ=0
*OUTPUT,FIELD,OP=NEW,FREQ=10000
*ELEMENT OUTPUT,ELSET=QA_TEST_MIDDLE_TREAD
 S,LE
*ELEMENT OUTPUT
 S,LE
*ELEMENT OUTPUT,REBAR
 S,LE
*NODE OUTPUT
 U,V,COORD
*NODE OUTPUT,NSET=QA_TEST_SYM
 U,V,COORD
*CONTACT OUTPUT
 CSTRESS,CDISP,CSTRESSERI
*OUTPUT,HISTORY,VAR=PRESELECT,FREQ=1
*NODE OUTPUT,NSET=RIM
 U, RF
*NODE OUTPUT,NSET=ROAD
 U, RF
*END STEP
****************************************
*** 2 DEGREE SLIP
***************************************
*STEP,NLGEOM,UNSYMM=YE,INC=300
*STEADY STATE TRANSPORT,INERTIA=YES
0.5,1.0
*MOTION,TYPE=VELOCITY
NTIRE, 1, , 8.328263
NTIRE, 2, , 0.290829
*END STEP