Tests on duralumin columns for aircraft construction (1924)
NASA Technical Reports Server (NTRS) · leaf 7
L'.A.C.A. Technical Note No.208 Fig.3. 60000 … 0 20 40 60 80 100 120 Values of L/r Compression tests mark "N" heat treated duralumin Fig.3 Columns tesred as pin ended struts. Least radius of columns, gyration is about axis of nom-symmetry. *
NASA Technical Reports Server (NTRS)
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