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The 180-degree open cylindrical test specimen is shown in the previous slide.
The circumferential rivets indicate the locations of the two end bulkheads and the slender ring at the midlength of the specimen. The longitudinal rivets indicate the locations of the widely spaced stringers.
From:
Tomasz Kopecki (Rzeszów University of Technology, Faculty of Mechanical Engineering and Aeronautics, Rzeszów, Poland), “Chapter 8: Numerical Reproducing of a Bifurcation in the Stress Distribution Obtaining Process in Post-Critical Deformation States of Aircraft Load-Bearing Structures”, in the book, “Nonlinearity, Bifurcation and Chaos – Theory and Applications”, edited by Jan Awrejcewicz and Peter Hagedorn, ISBN 978-953-51-0816-0, October 21, 2012, DOI: 10.5772/48069
Author's caption for Fig. 8 of the paper:
"Accepted as satisfactory form of post-critical deformation obtained as a result of nonlinear analysis (left) and a deformation form obtained as a result of experimental tests at identical load (right)"
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