Problem

A disk whose diameter is three times that of the shaft, and whose thickness is twice the s...

A disk whose diameter is three times that of the shaft, and whose thickness is twice the shaft diameter, has a diametral interference of 0.0005 times the shaft diameter. For the shaft, E = 206,900 MPa. For the disk, E = 103,450 MPa. Poisson’s ratio = 0.25. If the torsional stress in the shaft is equal to 69 MPa, find the coefficient of friction required if the entire torque is to be carried by the shrink-fit friction.

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