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This is Fig. 16 from the 2007 axialcomp paper. This slide shows the linear general buckling mode from the STAGS model with all stiffeners smeared. This is
Case 2 in Table 4 (three slides ago): no Koiter, yes change imperfection, ICONSV= -1.
In this STAGS model all stiffeners are smeared.
Compare with the next slide in which only the stringers are smeared.
Shown in this slide is STAGS Mode no. 1, buckling load factor, pcr=1.9189. PANDA2 predicts pcr=1.890 for this "Case 2" configuration. (See the table shown three slides ago).
The linear buckling mode from STAGS agrees with that from PANDA2: (m,n)=(4,6) halfwaves over 180 deg. See Part 1, Run 1 of Table 9 of the paper.
(From: AIAA 48th Structures, Structural Dynamics, and Materials Conference, Paper no. AIAA-2007-2216, 2007)
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