*HEADING
 SQUARE PLATE - ELASTIC BUCKLING  ( THERMAL EXP.  LOAD INCR. )
*NODE,NSET=N101
*NODE,NSET=N105
*NODE
*NGEN,NSET=YSYM
*NGEN,NSET=XSYM
*NGEN,NSET=YEDG
*NGEN,NSET=XEDG
*NFILL,NSET=TEMP
XSYM,XEDG,4,1
*ELEMENT,TYPE=STRI3,ELSET=EPRINT
*ELGEN,ELSET=EALL
*SHELL SECTION,MATERIAL=A1,ELSET=EALL
0.01,3
*MATERIAL,NAME=A1
*ELASTIC
1.E8,0.3
*EXPANSION
1.E-6,
*BOUNDARY
YSYM,YSYMM
XSYM,XSYMM
YEDG,3
YEDG,5
XEDG,3
XEDG,4
XEDG,1
XEDG,6
*STEP,NLGEOM,INC=20
*STATIC
 .1,1., , .1
*TEMPERATURE
TEMP,100.
*PRINT,RESIDUAL=NO
*EL PRINT,ELSET=EPRINT ,SUMMARY=NO,POSITION=CENTROID
S,
*EL FILE,ELSET=EPRINT ,POSITION=CENTROID
S,TEMP
*NODE PRINT,SUMMARY=NO
U,
*NODE FILE,NSET=N101
U,
*END STEP