Torsion Springs

[jdm20083151]

Is the formula to derive the k factor for a torsion spring the same as a compression and tension spring?
k=6Gd/8nD^3

where G is the modulus of rigidity, d is the wire diameter, n is the number of coils and D is (OD minus wire diamter).

Thanks

 

[desertfox]

Have a look at this site I believe the formula is not the same:-

http://www.roymech.co.uk/Useful_Tables/Springs/Springs_Torsion.html