This and the next slide pertain to stiffened cylindrical shells manufactured by Professor Roderick C. Tennyson and his colleagues at the University of Toronto Institute of Aerospace Studies (UTIAS).
Relevant Papers for this and the next two slides:
R. C. Tennyson, "Effect of Shape Imperfections and Stiffening on the Buckling of Circular Cylinders," IUTAM Symposium on "Buckling of Structures," Pub.
I.E. Boros and R.C. Tennyson, "Some Design Considerations for Imperfect Stiffened Cylinders under Various Loading Conditions", Proceedings of the AIAA/ASME/SAE 17th Structures, Structural Dynamics and Materials Conference, Valley Forge, Pennsylvania, May 1976.
D. Hui, R. C. Tennyson and J. S. Hansen, "Mode Interaction of Axially Stiffened Cylindrical Shells: Effects of Stringer Axial Stiffness, Torsional Rigidity and Eccentricity," J. Applied Mech, Vol. 48, Trans. ASME, 1981.
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