*HEADING
 Example 4.2. Imperfection Sensitivity with General Section and Node Loads
*NODE, SYSTEM=R
*ELEMENT, TYPE=S8R5, ELSET=BMI3
*NSET, NSET=PickedSet3
*NSET, NSET=PickedSet5
*NSET, NSET=PickedSet6
*NSET, NSET=PickedSet7
*NSET, NSET=x-corner
*NSET, NSET=y-corner
*NSET, NSET=x-e-corner
*NSET, NSET=y-e-corner
*NSET, NSET=y-e-mid
*NSET, NSET=x-e-mid
*SHELL GENERAL SECTION, ELSET=BMI3
** A11, A12, A22, A16, A26, A66, B11, B12
** B16, D11, B12, B22, B26, D12, D22, B16
** B26, B66, D16, D26, D66
 8.170E+05, 3.594E+04, 8.170E+05,  0.00    ,  0.00    , 4.474E+04,  0.00    ,  0.00
  0.00    , 8.560E+06,  0.00    ,  0.00    ,  0.00    , 3.116E+05, 5.610E+06,  0.00
  0.00    ,  0.00    ,  0.00    ,  0.00    , 3.879E+05,
*TRANSVERSE SHEAR STIFFNESS
** H44, H55, H45
 3.781E+04, 3.796E+04,  0.00
*Step, name=Step-1, perturbation
*Buckle
4, , 10, 30
*BOUNDARY
**NSET=PickedSet6
    1,    1,,  0.00
    6,    1,,  0.00
   11,    1,,  0.00
   19,    1,,  0.00
   31,    1,,  0.00
**NSET=PickedSet7
    1,    2,,  0.00
    2,    2,,  0.00
    3,    2,,  0.00
**NSET=PickedSet5
**NSET=PickedSet6
**NSET=PickedSet6
**NSET=PickedSet7
**NSET=PickedSet7
**NSET=PickedSet5
**NSET=PickedSet5
*CLOAD
**NSET=x-corner
    5,    1,  41.7
   15,    1,  41.7
**NSET=x-e-corner
   10,    1,  83.3
**NSET=x-e-mid
   27,    1,  167.
   36,    1,  167.
**NSET=y-corner
   11,    2,  41.7
   15,    2,  41.7
**NSET=y-e-corner
   12,    2,  83.3
**NSET=y-e-mid
*End Step