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Photograph supplied by Michael Nemeth, NASA Langley Research Center, Hampton, Virginia
From the same paper as the previous 2 images:
“Test of a truss-core sandwich cylinder loaded to failure in bending", by James P. Peterson and James Kent Anderson, NASA TN D-3157, December 1965
SUMMARY:
Results of a buckling test of a 10-ft-diameter (3m) truss-core sandwich cylinder loaded in bending are presented. The cylinder failed as a result of the growth of wall buckles; some of the buckles existed as initial imperfections in the cylinder wall prior to testing. Failure occurred suddenly at a load corresponding to approximately 62 per cent of the load computed with the use of classical small-delection buckling theory.
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