*HEADING
: ARBITRARY GENERAL SECTION (CHANNEL-ORIGIN AT SHEAR CENTER)  [B31OS]
*NODE
 1,  0.0, 0.0
11, 75., 0.0
*NGEN,NSET=ALL
 1,11,2
*ELEMENT,TYPE=B31OS, ELSET=EALL
1,1,3
2,3,5
3,5,7
4,7,9
5,9,11
*ELSET, ELSET=FOUR
4, 
*BEAM GENERAL SECTION,SECTION=ARBITRARY, ELSET=EALL
3, 2.788787, -1.9, .838787, -1.9, .2
.838787, 1.9, .1
2.788787, 1.9, .2
0., 0., -1.
3.E6, 1.1538E6, .001
*BOUNDARY
1, 1, 7
*STEP,PERTURBATION
*STATIC
*CLOAD
11,2,25.
*EL PRINT
SF,
*NODE PRINT
 U1,U2,U3,COORD
 UR1,UR2,UR3,WARP,COORD
*END STEP
*STEP,PERTURBATION
*STATIC
*CLOAD
11,4,25.
*END STEP