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This is Fig. 56 from the 2010 GENOPT paper. Shown here is the outer fiber effective stress in the neighborhood of the weld land from the STAGS model 2 (60-degree sub-domain model) for the previously GENOPT-optimized shell in which the T-stringer web and outstanding flange slenderness ratios are constrained to be less than 10.
The initial general buckling modal imperfection is the negative of the shape displayed in Figs. 54a,b of the 2010 GENOPT paper with amplitude, Wimp = –0.125 inch.
The STAGS load factor is PA = 1.127, which is the collapse load (third trace in Fig. 47 of the 2010 GENOPT paper).
The highest (pink) outer fiber effective stress at this load is 47955 psi.
In order to see figures referred to here but not shown here, please download the 2010 GENOPT paper from this website.
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