Problems marked with an asterisk (*) are linked to problems in other chapters, as summarized in Table 1-1 of Sec.1-6, P.24.
A shaft is loaded in bending and torsion such that Ma = 70N· m, Ta = 45 N·m, Mm=55 N·m, and Tm = 35 N·m. For the shaft, Su = 700 MPa and Sy = 560 MPa, and a fully corrected endurance limit of Se = 210 MPa is assumed. Let Kf = 2.2 and Kjs=1.8. With a design factor of 2.0 determine the minimum acceptable diameter of the shaft using the
(a) DE-Gerber criterion.
(b) DE-elliptic criterion.
(c) DE-Soderberg criterion.
(d) DE-Goodman criterion.
Discuss and compare the results.