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This is Fig. 20 of the 1999 addsoln paper. This slide shows normalized (Nx, Nxy) load-interaction curves for a composite, 4-layered angle-ply ([+ANG, -ANG, +ANG, -ANG]total) cylindrical panel with radius, r = 6 inches, length, a = 12.5 inches, arc-width, b = 3 inches, and total thickness, t = 0.04 inches.
The "0.95xalternative" model (small circles) is much more accurate than the closed form "PANDA-type" model (small squares), but requires much more computer time.
(from AIAA 40th Structures, Structural Dynamics and Materials Conference, AIAA Paper 99-1233, 1999)
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