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Tests on duralumin columns for aircraft construction (1924)
NASA Technical Reports Server (NTRS) · leaf 8
N.A.C.A. Technical Note No.208 Fig.4, … 0^ 1 \ \ \ \ \ \ \ \ \ \ 0 20 40 60 80 100 120 Values of L/r Fig.4 Compression tests mark "S" heat treated duralumin columns. Columns tested as pin ended struts. Least radius of gyration is a-bout axis of non-symmetry.NASA Technical Reports Server (NTRS)
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