Curves showing column strength of steel and duralumin tubing (1929)
NASA Technical Reports Server (NTRS) · leaf 14
Fig.3 Strength curves for carbon steel streamline tubes as columns. Y.P. in compression = 36pOO lb./sq.in. Fixity coef. = C = l S "£8,(70QO00 lb./$<?.fn.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
