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Twisting failure of centrally loaded open-section columns in the elastic range (1938)
NASA Technical Reports Server (NTRS) · leaf 47
Pigs. 5,7,8,10,11 N.A.C.A. Technical Memorandum No. 851 Figure 11.- Solution … Figure 5.- Chart for determining the twisting failure stress from the cubic equation °D=a,tfm <u»—3co>+pco—g=0. na -j- ax + gy OS (Jx 4" ffa-^.V P ~ <fm% (130) for xD Os rfat.ffy + 2 ftry g» gy "~" fogy1 ff* — gy1 <t« •— g»' fly1 9 _ . ffm* Figure 8.- Curves for computing twisting failure stress…NASA Technical Reports Server (NTRS)
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