*HEADING
SIMPLY SUPPORTED PLATE WITH UNIFORM PRESSURE---STRI3 4 X 4 MESH 80 DEG
*PREPRINT,ECHO=YES,MODEL=NO,HISTORY=NO
*NODE, NSET=CORNERS
*NGEN,NSET=BOT
*NGEN,NSET=TOP
*NFILL
BOT,TOP,4,100
*ELEMENT, TYPE=STRI3
*NSET,NSET=SIDES,GENERATE
*NSET,NSET=LFTRT
*NSET,NSET=CENTND
*NSET,NSET=TOPBOT
*ELGEN,ELSET=ALLELS
*ELSET,ELSET=CENTER
*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