ALLOWABLE STRESS OF STEEL SHAFT
ALLOWABLE STRESS OF STEEL SHAFT
(OP)
I m trying to calculate the allowable stress of a steel shaft that is subjected to a reverse torsional load. I know calculate the applied stress, but I need this value in order to compare with the applied stress value.
Is there anywhere any formula of the maximum allowable stress value?
Do I need calculate the design endurance limit to know the value of allowable stress?
Than you very much¡
Is there anywhere any formula of the maximum allowable stress value?
Do I need calculate the design endurance limit to know the value of allowable stress?
Than you very much¡





RE: ALLOWABLE STRESS OF STEEL SHAFT
RE: ALLOWABLE STRESS OF STEEL SHAFT
The optimist sees the glass as half full. The pessimist sees the glass as half empty. The engineer see the glass as too big.
RE: ALLOWABLE STRESS OF STEEL SHAFT
The optimist sees the glass as half full. The pessimist sees the glass as half empty. The engineer see the glass as too big.
RE: ALLOWABLE STRESS OF STEEL SHAFT
In short:
shear stress = 6000 psi for shaft with keys
shear stress = 8000 psi for shaft without keys
Where the safe shear stress is estimated at 1/10 of the average ultimate tensile stress.
There is a formula for shaft diameter that is kind of a cookbook type of approach, but it works and I have used it as a check of my other calculations. Note the significant load factors applied for combined shock and fatigue.
You need to decide however, the applicability of this info to your design requirements.
Regards,
-Mike