Engineering, 24.02.2020 22:28 Savageboyn

A 21-mm-diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is not to exceed 109 MPa when one end is twisted through an angle of 15°, what must be the length of the bar?

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A 21-mm-diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is...