Is the torsion formula for circular shafts applicable to short shafts?

28 April 2022 1 2K Report

The Euler-Bernoulli formula for beams is not valid for short beams (beams with length less than the depth). So, Is the torsion formula for circular shafts applicable to short shafts?

Shuraik Kader

Dear @Mir Aamir Abbas

If the following assumptions get fulfilled then it's applicable:

1. Shaft must be straight and consist of uniform cross section

2. Shear stress induced in shaft should not exceed its plastic limit

3. Twist along the shaft should be uniform

Hope it helps

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