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Shear Strain

A rectangular...

Question

A rectangular bar has been subjected to torsion. The maximum shear stress will occur

A

At the centre

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B

At the corner

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C

At the middle of longer side

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D

Along the diagonal

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Solution

The correct option is C At the middle of longer side
Shear stress distribution in a bar with solid rectangular cross-section subjected to end torsion is shown as below.

The shear stress is maximum on the boundary and zero at the centre of the rectangle. The maximum shear stress occurs at the middle of long side.

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