Endurance Limit of Rotating Beam Specimen Solution

STEP 0: Pre-Calculation Summary
Formula Used
Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor)
S'e = Se/(Kb*Kd*Kc*Ka)
This formula uses 6 Variables
Variables Used
Endurance Limit of Rotating Beam Specimen - (Measured in Pascal) - Endurance Limit of Rotating Beam Specimen is the maximum value of the completely reversed stress for which the specimen can sustain for an infinite number of cycles without any fatigue failure.
Endurance Limit - (Measured in Pascal) - The Endurance Limit of a material is defined as the stress below which a material can endure an infinite number of repeated load cycles without exhibiting failure.
Size Factor - The Size Factor takes into account the reduction in endurance limit due to an increase in the size of the component.
Modifying Factor for Stress Concentration - The Modifying Factor for Stress Concentration accounts for the effect of stress concentration on a specimen for cyclic loading.
Reliabilty Factor - Reliabilty Factor accounts for the reliability that is used in the design of the component.
Surface Finish Factor - The Surface Finish Factor takes into account the reduction in endurance limit due to variation in the surface finish between the specimen and the actual component.
STEP 1: Convert Input(s) to Base Unit
Endurance Limit: 51 Newton per Square Millimeter --> 51000000 Pascal (Check conversion here)
Size Factor: 0.85 --> No Conversion Required
Modifying Factor for Stress Concentration: 0.34 --> No Conversion Required
Reliabilty Factor: 0.89 --> No Conversion Required
Surface Finish Factor: 0.92 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
S'e = Se/(Kb*Kd*Kc*Ka) --> 51000000/(0.85*0.34*0.89*0.92)
Evaluating ... ...
S'e = 215523434.581453
STEP 3: Convert Result to Output's Unit
215523434.581453 Pascal -->215.523434581453 Newton per Square Millimeter (Check conversion here)
FINAL ANSWER
215.523434581453 215.5234 Newton per Square Millimeter <-- Endurance Limit of Rotating Beam Specimen
(Calculation completed in 00.004 seconds)

Credits

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National Institute of Technology (NIT), Tiruchirapalli
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15 Endurance Limit Approximate Estimation in Design Calculators

Modifying Factor to Account for Stress Concentration
Go Modifying Factor for Stress Concentration = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Surface Finish Factor*Size Factor*Reliabilty Factor)
Endurance Limit of Rotating Beam Specimen
Go Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor)
Reliability Factor for Fluctuating Load
Go Reliabilty Factor = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Modifying Factor for Stress Concentration*Surface Finish Factor*Size Factor)
Surface Finish Factor of Specimen
Go Surface Finish Factor = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Size Factor*Reliabilty Factor*Modifying Factor for Stress Concentration)
Size Factor for Fluctuating Load
Go Size Factor = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor)
Endurance Limit of Specimen
Go Endurance Limit = Surface Finish Factor*Size Factor*Reliabilty Factor*Modifying Factor for Stress Concentration*Endurance Limit of Rotating Beam Specimen
Stress Amplitude for Fluctuating load given Maximum Stress and Minimum Stress
Go Stress Amplitude for Fluctuating Load = (Maximum Stress Value for Fluctuating Load-Minimum Stress Value for Fluctuating Load)/2
Modifying Factor for Fluctuating Load given Fatigue Stress Concentration Factor
Go Modifying Factor for Stress Concentration = 1/Fatigue Stress Concentration Factor
Fatigue Stress Concentration Factor given Modifying Factor
Go Fatigue Stress Concentration Factor = 1/Modifying Factor for Stress Concentration
Endurance Limit Stress of Rotating Beam Specimen of Cast Aluminium Alloys
Go Endurance Limit of Rotating Beam Specimen = 0.3*Ultimate Tensile strength
Endurance Limit Stress of Rotating Beam Specimen of Cast Iron or Steels
Go Endurance Limit of Rotating Beam Specimen = 0.4*Ultimate Tensile strength
Endurance Limit Stress of Rotating Beam Specimen of Aluminium Alloys
Go Endurance Limit of Rotating Beam Specimen = 0.4*Ultimate Tensile strength
Endurance Limit of Rotating Beam Specimen of Steel
Go Endurance Limit of Rotating Beam Specimen = 0.5*Ultimate Tensile strength
Endurance Limit given Endurance Limit for Axial Loading
Go Endurance Limit = Endurance Limit for Axial Loading/0.8
Endurance Limit for Axial Loading
Go Endurance Limit for Axial Loading = 0.8*Endurance Limit

Endurance Limit of Rotating Beam Specimen Formula

Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor)
S'e = Se/(Kb*Kd*Kc*Ka)

What is endurance limit?

The fatigue or endurance limit of a material is defined as the maximum amplitude of completely reversed stress that the standard specimen can sustain for an unlimited number of cycles without fatigue failure.

How to Calculate Endurance Limit of Rotating Beam Specimen?

Endurance Limit of Rotating Beam Specimen calculator uses Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor) to calculate the Endurance Limit of Rotating Beam Specimen, Endurance Limit of Rotating Beam Specimen formula is defined as the ratio of endurance limit and the product of size factor, modifying factor for stress concentration, surface finish factor, and reliability factor. It is the maximum value of the completely reversed stress for which the specimen can sustain for an infinite number of cycles without any fatigue failure. Endurance Limit of Rotating Beam Specimen is denoted by S'e symbol.

How to calculate Endurance Limit of Rotating Beam Specimen using this online calculator? To use this online calculator for Endurance Limit of Rotating Beam Specimen, enter Endurance Limit (Se), Size Factor (Kb), Modifying Factor for Stress Concentration (Kd), Reliabilty Factor (Kc) & Surface Finish Factor (Ka) and hit the calculate button. Here is how the Endurance Limit of Rotating Beam Specimen calculation can be explained with given input values -> 0.000225 = 51000000/(0.85*0.34*0.89*0.92).

FAQ

What is Endurance Limit of Rotating Beam Specimen?
Endurance Limit of Rotating Beam Specimen formula is defined as the ratio of endurance limit and the product of size factor, modifying factor for stress concentration, surface finish factor, and reliability factor. It is the maximum value of the completely reversed stress for which the specimen can sustain for an infinite number of cycles without any fatigue failure and is represented as S'e = Se/(Kb*Kd*Kc*Ka) or Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor). The Endurance Limit of a material is defined as the stress below which a material can endure an infinite number of repeated load cycles without exhibiting failure, The Size Factor takes into account the reduction in endurance limit due to an increase in the size of the component, The Modifying Factor for Stress Concentration accounts for the effect of stress concentration on a specimen for cyclic loading, Reliabilty Factor accounts for the reliability that is used in the design of the component & The Surface Finish Factor takes into account the reduction in endurance limit due to variation in the surface finish between the specimen and the actual component.
How to calculate Endurance Limit of Rotating Beam Specimen?
Endurance Limit of Rotating Beam Specimen formula is defined as the ratio of endurance limit and the product of size factor, modifying factor for stress concentration, surface finish factor, and reliability factor. It is the maximum value of the completely reversed stress for which the specimen can sustain for an infinite number of cycles without any fatigue failure is calculated using Endurance Limit of Rotating Beam Specimen = Endurance Limit/(Size Factor*Modifying Factor for Stress Concentration*Reliabilty Factor*Surface Finish Factor). To calculate Endurance Limit of Rotating Beam Specimen, you need Endurance Limit (Se), Size Factor (Kb), Modifying Factor for Stress Concentration (Kd), Reliabilty Factor (Kc) & Surface Finish Factor (Ka). With our tool, you need to enter the respective value for Endurance Limit, Size Factor, Modifying Factor for Stress Concentration, Reliabilty Factor & Surface Finish Factor and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Endurance Limit of Rotating Beam Specimen?
In this formula, Endurance Limit of Rotating Beam Specimen uses Endurance Limit, Size Factor, Modifying Factor for Stress Concentration, Reliabilty Factor & Surface Finish Factor. We can use 4 other way(s) to calculate the same, which is/are as follows -
  • Endurance Limit of Rotating Beam Specimen = 0.5*Ultimate Tensile strength
  • Endurance Limit of Rotating Beam Specimen = 0.4*Ultimate Tensile strength
  • Endurance Limit of Rotating Beam Specimen = 0.4*Ultimate Tensile strength
  • Endurance Limit of Rotating Beam Specimen = 0.3*Ultimate Tensile strength
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