Shaft calculation

[saragur]

I calculated shear stress of the shaft based on the torque and found it is within the torsional yield of the material. Can I say design is safe. Or should I need to find angle of twist?

 

[dvd]

might want to consider bending moment...

 

[saplanti]

Add fatigue analysis in case the system has cyclic stresses.

 

[metengr]

For shaft calculations in addition to the above you need to evaluate bending stress along with torsional stress, and decide on an appropriate safety factor. So, no I would not consider it safe.

 

[Tmoose]

How is the torque getting into and out of the shaft?
Does the torque vary over time?
How long would you like it to last?

 

[leisure17]

Google shaft design