*HEADING
 SKEW-SENSITIVITY ANALYSIS, 0 DEG, CPS6M,
*RESTART,WRITE
*NODE
1,0.,0.
17,6.,0.
801,0.,.2
817,6.,.2
*NGEN,NSET=FIX
1,801,100
*NGEN,NSET=END
17,817,100
*NFILL
FIX,END,16,1
*NSET,NSET=FIX,GENERATE
1,801,100
*ELEMENT,TYPE=CPS6M
       1,     803,     801,       1,     802,     401,     402
       2,       1,       3,     803,       2,     403,     402
*ELGEN,ELSET=EALL
1,8,2,2
2,8,2,2
*MATERIAL,NAME=A1
*ELASTIC
1.E8,0.
*SOLID SECTION,MATERIAL=A1,ELSET=EALL,controls=ctr
.01, 
*section controls,name=ctr,hourglass=stiffness
*STEP,PERTURBATION
*STATIC
*BOUNDARY
FIX,1,2
*CLOAD
17,2, -.1666666666666667
417,2,-.6666666666666667
817,2,-.1666666666666667
*EL PRINT
COORD, 
S, 
E, 
*NODE FILE
U, 
*OUTPUT,FIELD
*NODE OUTPUT
U,
*END STEP