Question: To determine its forgeability, a hot-twist test performed on a round bar 25 mm in diameter and 200 mm long. It is found that the

To determine its forgeability, a hot-twist test performed on a round bar 25 mm in diameter and 200 mm long. It is found that the bar underwent 200 before it fractured. Calculate the shear strain at outer surface of the bar at fracture.

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