There exist some validity conditions for the equations which are used in the calculations. If input parameters don't satisfy validity conditions of equations, a warning message is given by the calculator.
Vshaped Circumferential Groove:
Note: Use dot "." as decimal separator.
RESULTS 
LOADING TYPE  TORSION 

Parameter 
Value 
Stress concentration factorn [K_{t}]
* 


 
Nominal shear stress at shaft [τ_{nom }] ^{x} 



Maximum shear stress due to torsion (at PointA) [τ_{max }] 


Note 1: Maximum stress is occured at point A.
Note 2: * Geometry rises τ_{nom} by a factor of K_{t}. (K_{t }= τ_{nom}/τ_{max})
Note 3: ^{x} τ_{nom}= 16T/(πd^{3}) (Nominal shear stress occurred due to torsion)
Note 4: Vshaped stress concentration factor is dependent on Ushaped stress
concentration factor. Input parameters shall satisfy both cases.