N.A.C.A. Technical-Memorandum No.511 Fig. 8 a(Compression side) … c Distance between frames d Measured e Calculated(inertia moment determined with whole cross section) f, f(measured)-f(calculated) x 100 f(measured) g Calculated compressive stress(inertia moment,determined without regard to the compressively stressed top metal sheet,and the lateral sheets…
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