Structural analysis and design of airplanes (1920)
United States. Army. Air Corps · [Washington] · leaf 133
s. Theaverage weight of these six ribs was 2.25 lbs. Failure seldom occurs inbuilt-up ribs except at the joints, and the large majority of these fail-ures take place at one or more of the eight joints adjacent to the spars.Attention should therefore be directed toward securing strength at… … .0 t Q £ o <b ^ 3 b JO -i! Q vi V fYl i ^ ) a ^ ^ \ u 0 H .S D r r Hi>> 0 a. 3 vTl ^ v5 C5 £ 0 S V~ ;> .0 £ .s s ^ >> TO «oi ^ ^ § b 114 Art. 88 Truss Ribs Fig. 74 is a modification of the construction discussed above. Theprincipal difference is in the method of joining the web…
Airplanes
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