*HEADING
 AXISYMMETRIC (HALF CROSS-SECTION)
 HYPERELASTIC TIRE AIR COUPLED ACOUSTIC MODEL
 STEP 1: INFLATE TIRE TO 200 KPa
 UNITS: KG, M
*PREPRINT,MODEL=YES
*RESTART,WRITE,FREQ=100
*INCLUDE,INPUT=tire_acoustic_air.inp
*NODE,NSET=NTIRE,INP=tiretransfer_node.inp
*NODE,NSET=TIRE-RIM
*ELEMENT,TYPE=CGAX4H,ELSET=TREAD
*ELEMENT,TYPE=CGAX3H,ELSET=TREAD
*ELEMENT,TYPE=CGAX4H,ELSET=SIDE
*ELEMENT,TYPE=CGAX4H,ELSET=BELT
*ELEMENT, TYPE=RAX2, ELSET=RIM
*RIGID BODY, ELSET=RIM, REFNODE=TIRE-RIM
*ELSET,ELSET=CARCASS
SIDE,BELT
*ELEMENT,TYPE=SFMGAX1,ELSET=MEM_BELT1
*ELEMENT,TYPE=SFMGAX1,ELSET=MEM_BELT2
*ELEMENT,TYPE=SFMGAX1,ELSET=MEM_CARCASS
*EMBEDDED ELEMENT,HOST=CARCASS,ROUNDOFF TOL=5.E-4
MEM_CARCASS,
*EMBEDDED ELEMENT,HOST=BELT,ROUNDOFF TOL=5.E-4
MEM_BELT1,MEM_BELT2
*SURFACE SECTION,ELSET=MEM_BELT1
*REBAR LAYER
 BELT1, 0.2118683E-6, 1.16E-3, 0.0, BELT, 70.0
*SURFACE SECTION,ELSET=MEM_BELT2
*REBAR LAYER
 BELT2, 0.2118683E-6, 1.16E-3, 0.0, BELT, 110.0
*SURFACE SECTION,ELSET=MEM_CARCASS
*REBAR LAYER
MEM_CARCASS,0.4208352E-6,1.00E-3,0.0,CARCASS,0.0
*SOLID SECTION,ELSET=TREAD,MATERIAL=RUBBER,
CONTROLS=ROLLCONT
*SOLID SECTION,ELSET=SIDE,MATERIAL=RUBBER,
CONTROLS=ROLLCONT
*SOLID SECTION,ELSET=BELT,MATERIAL=RUBBER,
CONTROLS=ROLLCONT
*SECTION CONTROLS,NAME=ROLLCONT
***********************************
*MATERIAL,NAME=RUBBER
*HYPERELASTIC,N=1
 1.0e6,
*DENSITY
 1100.,
***********************************
*MATERIAL,NAME=BELT
*ELASTIC,TYPE=ISO
 172.2E+09, 0.3
*DENSITY
 5900.,
***********************************
*MATERIAL,NAME=CARCASS
*ELASTIC,TYPE=ISO
 9.87E+9,  0.3
*DENSITY
 1500.,
***********************************
*NSET,NSET=RIMNOD
*NSET,NSET=TIRE-SYM
*ELSET,ELSET=SOLID,GENERATE
*SURFACE,NAME=TIRE-LINER
 BELT, S3
 SIDE, S3
*TIE,NAME=AIR-TIRE,ADJUST=YES
 AIR-LINER,TIRE-LINER
***********************************
*STEP,NLGEOM=YES
 1:  INFLATION
*STATIC
 0.25, 1.0
*BOUNDARY
 TIRE-RIM, 1, 2
 TIRE-RIM, 6,
 RIMNOD, 5,
 TIRE-SYM, 2,
 TIRE-SYM, 5,
*DSLOAD
 TIRE-LINER, P, 200.E3
*ADAPTIVE MESH,ELSET=AIR,FREQ=1,MESH SWEEP=5
*PRINT,ADAPT=YES
*NODE PRINT,FREQUENCY=0
*EL PRINT,FREQUENCY=0
*OUTPUT,FIELD,FREQ=1
*NODE OUTPUT
 U
*ELEMENT OUTPUT
S,LE
*OUTPUT,HISTORY,FREQ=1,VAR=PRE
*END STEP