*HEADING
  - TRIANGULAR PLATE ON THREE POINT SUPPORTS - [S4R5]
*NODE,NSET=ALLN
*NSET,NSET=CORNERS
*NSET,NSET=MID
*ELEMENT,TYPE=S4R5,ELSET=ALLE
*SHELL SECTION,ELSET=ALLE,MATERIAL=MAT1,ORIENTATION=XYZ
 .00254 , 5
*MATERIAL,NAME=MAT1
*ELASTIC
 207.E09 , .25
*BOUNDARY
 CORNERS,3,3,0.
 1 , 1 , 2
 1 , 6
*ORIENTATION,NAME=XYZ,SYSTEM=RECTANGULAR
*STEP
*STATIC
 1.0 , 1.0
*CLOAD
**
1 , 3 ,  292.275
1 , 4 ,  8.156
1 , 5 , -4.7091
**
2 , 3 ,  292.275
2 , 5 ,  9.4181
**
3 , 3 ,  292.275
3 , 4 , -8.156
3 , 5 , -4.7091
**
**
**
*NODE PRINT,FREQ=100,NSET=MID
 U,
*EL PRINT,POSITION=AVERAGED AT NODES,FREQ=100
 SF,
*NODE FILE,FREQ=100,NSET=MID
 U,
*OUTPUT,FIELD,FREQ=100
*NODE OUTPUT,NSET=MID
U,
*EL FILE,POSITION=AVERAGED AT NODES,FREQ=100
 SF,
*END STEP