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Problem $03\mathrm{.}005-$ Torsion of solid and hollow cylindrical shafts $-$ DEPENDENT MULTI$-$PART PROBLEM

ASSIGN ALL PARTS

A $56-$kip$-$in$.$ torque $T$ is applied to each of the cylinders shown.

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part.

Problem $03\mathrm{.}005.$b $-$ Torsion of a hollow cylindrical shaft

Determine the inner diameter of the $4-$in$.$ diameter hollow cylinder shown, for which the maximum stress is the same as in part a$.$

The inner diameter is

in$.$