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This is Fig. 1 from the paper, "Optimum design of composite stiffened panels under combined loading", by D. Bushnell and W. D. Bushnell, Computers & Structures, Vol.55, No. 5, pp. 819-856, 1995, called "1995 p2stags paper" in several of the following slides because there is a comparison between predictions from PANDA2 (p2) and STAGS.
This slide shows the geometry of the laminated composite panel; loading; two locations, "a" and "b", where buckling and stress analyses are performed for each load set; and panel module discretization for the T-stiffened laminated composite panel.
The panel is to be loaded far into its locally post-buckled state. (NOTE: The arrow for the axial compression, Nx, should point the other way.)
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