Question: A 3 0 , 0 0 0 N bending load is applied to the axle of a tugboat. This load creates a bending moment of

A 30,000 N bending load is applied to the axle of a tugboat. This load creates a bending moment of 12,000 N.m at the point where the chassis is connected to the axle. St 37 material is foreseen for the axle material.
a) When a solid axle is used,
b) When a hollow axle with OD/OD=0.7 is desired, calculate the axle diameters for both cases. Safety factor=4

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