A shaft, made of AISI 1050 CD steel, is loaded in bending and torsion such that Ma = 650 lbf · in, Ta = 400 lbf · in, Mm

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A shaft, made of AISI 1050 CD steel, is loaded in bending andtorsion such that Ma = 650 lbf · in, Ta = 400 lbf · in, Mm = 500lbf · in, and Tm = 300 lbf · in. The shaft has a fully correctedendurance limit of Se = 30 kpsi and at the critical stresslocation, Kf = 2.3 and Kfs = 1.9. Estimate the true fracturestrength as being 50 kpsi greater than the ultimate strength. Witha design factor of 2.5 determine the minimum acceptable diameter ofthe shaft using the (a) DE-Goodman criterion. (b) DE-Morrowcriterion. (c) DE-Gerber criterion. (d) DE-SWT criterion. Discussand compare the results