A steel shaft is to be manufactured either as a solid circular bar or as a...

A steel shaft is to be manufactured either as a solid circular bar or as a circular tube. The shaft is required to transmit a torque of 1200 N_m without exceeding an allowable shear stress of 40 MPa nor an allowable rate of twist of0.75°/m. (The shear modulus of elasticity of the steel is 78 GPa.).

Determine the required outer diameter do of the solid shaft [58.8 mm]

Determine the required diameter d2of the hollow shaft if thethickness t of the shaft is specified as one-tenth of the outer diameter. [67.7 mm]

Determine the ratio of diameters (that is, the ratio d2/d0) and the ratio ofweights of the hollow and solid shafts. [1.14, 0.47]

Expert Solution

samet mamat answered 2 years ago

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