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Learning Goal: Part $C-$ Angle of twist at point $C$ if segment $BC$ were solid instead of hollow

Determine the angle of twist, ${}_C,$ experienced by the rod at point $C$ if the segment $BC$ is solid rather than hollow.

Express your answer to three significant figures and include appropriate units.

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${}_C=$

To determine the angle of twist on a composite rod given the geometry and externally applied torques, to properly apply a sign convention to determine the angle of

twist, to use a torque diagram to aid in determining the angle of twist, and to determine the maximum applicable torque given a maximum allowable angle of twist.

The rod shown below is made of two different materials. Segment $AB$ is made of aluminum $(G=3\mathrm{.}9{10}^6$ psi$).$ Segment $BC$ is bonded to segment $AB$ and is made

of brass $(G=5\mathrm{.}6{10}^6).$ Segment $BC$ is hollow and has an inner diameter of $d_1=1\mathrm{.}0in.$ External torques are applied to the rod at point $B$ and point $C.$ Let $L_A$

$=60\mathrm{.}0in,L_B=48\mathrm{.}0in,d_A=3\mathrm{.}1in,d_B=2\mathrm{.}4in,T_B=6\mathrm{.}0$kip $-$ in $,$ and $T_C=15\mathrm{.}0$kip in $.$

Part $A-$ Angle of twist at point $B$

Determine the angle of twist, ${}_B,$ experienced by the rod at point $B.$

Express your answer to three significant figures and include appropriate units.

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Part B $-$ Angle of twist at point C

Determine the angle of twist, ${}_C,$ experienced by the rod at point $C.$

Express your answer to three significant figures and include appropriate units.

View Available Hint$($s$)$

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