Approximations for column effect in airplane wing spars (1927)
NASA Technical Reports Server (NTRS) · leaf 8
ults in general. The values for the maximum moment derived by its use are correct within 5 per cent for all values of a up to 68° with a 22 per cent overhang, 76° with 30 per cent, 44° with 35 per cent, and 32° with 37.5 per cent. Most of the cases met with in practice will show values of a lower… … 0° 10° 20° 30° 40° SO" 60° 70" 80° a Fig. 5 long and the compression in the bay large. Exact figures can be read off, of course, by inter- polation between the curves in Figure 3 if that is desired. The sudden change of form of the curve of variation of maximum bending moments with compression in…
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