Approximations for column effect in airplane wing spars (1927)
NASA Technical Reports Server (NTRS) · leaf 6
pin-jointed at its ends. While it would be possible, as just noted, to plot a single curve of moment correction factors for single-bay trusses which would hold within a maximum error of 10 per cent or 15 per cent for all cases likely to be met with in practice, except those with overhangs so long… … ticular length of overhang under consideration, or, alternatively, to find some general approxi- mate method, either emperical or rational, which comes sufficiently close to fitting all"cases. An approximation much used in such cases is the Perry formula. (Reference 4.) MxPe M' = P.-P where P is…
NASA Technical Reports Server (NTRS)
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