These imperfection profiles were obtained by Tennyson, et al from the equipment displayed in the previous slide.
Relevant papers for this and the next three slides:
R. C. Tennyson and D. B. Muggeridge, "Buckling of Axisymmetric Imperfect Circular Cylindrical Shells Under Axial Compression," AIAA J., Vol. 7, No. 11,1969.
R. C. Tennyson, D. Muggeridge and R. D. Caswell, "The Effect of Axisymmetric Imperfection Distributions on the Buckling of Circular Cylindrical Shells Under Axial Compression," Proc. of 11th AIAA/ASME Structures-Structural Dynamics and Materials Conf.Also AIAA J.. Vol. 9, No. 5. May 1971.
R. C. Tennyson, D. Muggeridge and R. D. Caswell, "New Design Criteria for Predicting Buckling of Cylindrical Shells Under Axial Compression," AIAA Paper No. 71-145, AIAA 9th Aerospace Sciences Meeting, AIAA J. Spacecraft & Rockets, 8, No. 10,1971
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