*HEADING
 NAFEMS TEST FV12, [CSS8]
Shell Elements -- Free thin square plate
*NODE
101,0,0
109,10,0
901,0,10
909,10,10
1101,0,0,0.05
1109,10,0,0.05
1901,0,10,0.05
1909,10,10,0.05
*NGEN,NSET=EDGE1
101,109
*NGEN,NSET=EDGE2
1101,1109
*NGEN,NSET=EDGE3
901,909
*NGEN,NSET=EDGE4
1901,1909
*NFILL,NSET=BOT
EDGE1,EDGE3,8,100
*NFILL,NSET=TOP
EDGE2,EDGE4,8,100
*ELEMENT,TYPE=CSS8
1,101,102,202,201,1101,1102,1202,1201
*ELGEN,ELSET=ELALL
1,8,1,1,8,100,8
*SOLID SECTION,MATERIAL=MAT1,ELSET=ELALL
*MATERIAL,NAME=MAT1
*ELASTIC
2E11,0.3
*DENSITY
8000, 
** *BOUNDARY
** NALL,1,2
*EQUATION
 2,
 TOP,3,1.0,BOT,3,-1.0
 2
 TOP,2,1.0,BOT,2,1.0
 2
 TOP,1,1.0,BOT,1,1.0
*STEP
*FREQUENCY, eigensolver=lanczos, SIM=NO
 11, , ,-1E-1 
*OUTPUT,FIELD,VAR=PRESELECT,MODELIST
 1,2,3,4,5,6,7,8,9,10
** 4,5,6,9,10
*ENDSTEP