Question: The rotating solid steel shaft is supported by bearings a B and C, and is driven by a gear (not shown) which meshes with the

The rotating solid steel shaft is supported by bearings a B and C, and is driven by a gear (not shown) which meshes with the spur gear at D (150 mm pitch diameter). A torque of T =340 N'm is transmitted to end A. The shaft is machined from steel with S, =420 MPa and S, = 560 MPa. Using ny = 2.5, determine the minimum allowable diameter of the section B-C, based on (a) static yield using the maximum von Mises stress approach (i.e., not using the Langer Line), and (b) ASME Elliptic fatigue failure analysis. Assume sharp fillet radii at the bearing shoulders. b 2S00 mim
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