*HEADING
SIMPLY SUPPORTED PLATE WITH UNIFORM PRESSURE---STRI65 8 X 8 MESH 30 DEG
*PREPRINT,ECHO=YES,HISTORY=NO,MODEL=NO
*NODE, NSET=CORNERS
1,   0.,    0.
17,   1.,    0.
1601, .866, .5
1617,  1.866, .5
*NGEN,NSET=BOT
1,17,1
*NGEN,NSET=TOP
1601,1617
*NFILL
BOT,TOP,16,100
*NSET,NSET=SIDES,GENERATE
1,17
1601,1617
1,1601,100
17,1617,100
*NSET,NSET=CENTND
809, 
*ELEMENT, TYPE=STRI65
    1,     1,     3,   203,     2,   103,   102
50001,     1,   203,   201,   102,   202,   101
*ELGEN,ELSET=ALLELS
    1,     8,     2,     1,     8,   200,     8
50001,     8,     2,     1,     8,   200,     8
*ELSET,ELSET=CENTER
28,29,36,37
*SHELL SECTION,MATERIAL=A1,ELSET=ALLELS
.01,3
*MATERIAL,NAME=A1
*ELASTIC
3.E7,  .3
*BOUNDARY
SIDES,1,3
*STEP
*STATIC
*DLOAD
ALLELS,P,-1.
*NODE PRINT, NSET=CENTND
U, 
*EL PRINT, ELSET=CENTER, POSITION=AVERAGED AT NODES
SF, 
*NODE FILE, NSET=CENTND
U, 
*OUTPUT,FIELD
*NODE OUTPUT,NSET=CENTND
U,
*EL FILE, ELSET=CENTER, POSITION=AVERAGED AT NODES
SF, 
*END STEP