Question: A circular bar of radius ( r _ { o } ) is under the action of axial tensile load ( P

A circular bar of radius \( r_{o}\) is under the action of axial tensile load \( P \) and twisting couples of magnitude \( M_{t}\).(a) Determine the stress throughout the bar. (b) Find the maximum normal and shearing stress.
A circular bar of radius \ ( r _ { o } \ ) is

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