Maximum Allowable Shaft Torque Equation and Design Validity

[TOVmania]

Please answer below questions at your best knowledge.

1. Is ((PI/2)*(r^3))* Maximum Allowable Stress the correct equation for getting the Maximum Allowable Shaft Torque value of a round bar? How about the square shaft? How does the equation change?

2. Should the outcome of the above equation be at least twice the value of BTO as per API 6D 6.17.1?

3. How to incorporate safety factor in the equation?

Thank you for your time and attention.

 

[hsbcn]

Is this for a NORSOK application; if so, you'll need to contrast with their guidelines, as well as API 6D parameters...

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