Practice Question: Solve for Twist on a Shaft

NCEES Civil PE Specification IV.C.: Bending


Shaft ABCDE is subjected to clockwise torques 590 lb-ft, 880 lb-ft and 750 lb-ft at points B, C and D respectively.

Supports A and E are both unyielding.

The diameter of the shaft varies as shown in the figure.

Given modulus of rigidity G = 11.5x106 psi,  determine the reaction at support E.

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