*HEADING
  BARREL VAULT 4 X 4 MESH STRI65
*PREPRINT,ECHO=YES,MODEL=NO,HISTORY=NO
*NODE,SYSTEM=C,NSET=CORNER
*NGEN,LINE=C,NSET=WALL
*NGEN,LINE=C,NSET=SYMM
*NFILL
WALL,SYMM,8,1
*NSET,NSET=APEX,GENERATE
*ELEMENT,TYPE=STRI65,ELSET=ROOF1
*ELGEN,ELSET=ROOF
*ELSET,ELSET=FEW
*MATERIAL,NAME=STEEL
*ELASTIC
 3.E6,
*BOUNDARY
 APEX,YSYMM
 SYMM,ZSYMM
 WALL,1,2
*SHELL SECTION ,MATERIAL=STEEL,ELSET=ROOF
 3.0,3
*STEP
 SELF-WEIGHT
*STATIC
*DLOAD
 ROOF,BX,-0.20833
*ENERGY PRINT
*EL PRINT,ELSET=FEW
 E, S
*EL PRINT
SINV,
ENER,
*EL FILE,POSITION=AVERAGED AT NODES
S,E
*NODE FILE,NSET=CORNER
 U, CF
*ENERGY FILE
*END STEP