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Re: calculate the torsion strength
How would you do it in real life? Just replicate that in simulation.
A moment load on one end and fixed on the other is a good start.
Or model a beam perpendicular to the axis on one end and fix the other end. Add a force to your moment arm to do the analysis.
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Re: calculate the torsion strength
The other option is to use prescribed displacement to rotate the part and then find out how much force it took to rotate it.
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