Limit load analysis of a panel with a bead

A panel is fully constrained at one edge and loaded by a force distributed around the bolt holes in the flange, see Figure 15. The edge at the flange is constrained in the transverse direction. The geometry, boundary conditions and loadings are the same as in Section 4.3.1. The material in the panel is Domex 355. The example keyword file is limitload001.key. The force-deflection curve is shown in Figure 19. The peak load is 100 kN (which is significantly lower than the linear estimate of Section 4.3.1).

Example Files: limitload001
NOTE! All examples are included in the Complete Guideline

Main Input

*KEYWORD 
$===============================================================================
$ Control and output cards
$===============================================================================
*INCLUDE
../INCLUDE_FILES/control_cards_arc.key
*DATABASE_HISTORY_NODE
       244
*INCLUDE
../INCLUDE_FILES/database_cards_static.key
*CONTROL_TERMINATION
        1.
*TERMINATION_NODE
       244         2      155.      -10.
$===============================================================================
*DEFINE_CURVE_TITLE
Time stepping curve
       700
                  0.                0.10
                  1.                 0.2
                 1.1                0.05
                 1.2                 0.1
                  2.                 0.2
                  3.                 0.3
                  4.                 0.5
$===============================================================================
$ Bracket geo
$===============================================================================
*INCLUDE
buckling_geo001.key
$===============================================================================
$ Loads and boundary conditions
$===============================================================================
*DEFINE_CURVE_TITLE
Force ramp
100,
0.,0.
1.,1.5
*LOAD_NODE_SET
         2         2       100 16.666667
*BOUNDARY_SPC_SET
         1                   1         1         1         1         1         1 
*BOUNDARY_SPC_SET
         3                   1  
$===============================================================================
*TITLE
Test buckling loading push by prescribed force,arc length
*END