Modifying Factor to Account for Stress Concentration Solution

STEP 0: Pre-Calculation Summary
Formula Used
Modifying Factor for Stress Concentration = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Surface Finish Factor*Size Factor*Reliabilty Factor)
Kd = Se/(S'e*Ka*Kb*Kc)
This formula uses 6 Variables
Variables Used
Modifying Factor for Stress Concentration - The Modifying Factor for Stress Concentration accounts for the effect of stress concentration on a specimen for cyclic loading.
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.
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.
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.
Size Factor - The Size Factor takes into account the reduction in endurance limit due to an increase in the size of the component.
Reliabilty Factor - Reliabilty Factor accounts for the reliability that is used in the design of the component.
STEP 1: Convert Input(s) to Base Unit
Endurance Limit: 52.0593 Newton per Square Millimeter --> 52059300 Pascal (Check conversion ​here)
Endurance Limit of Rotating Beam Specimen: 220 Newton per Square Millimeter --> 220000000 Pascal (Check conversion ​here)
Surface Finish Factor: 0.92 --> No Conversion Required
Size Factor: 0.85 --> No Conversion Required
Reliabilty Factor: 0.89 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Kd = Se/(S'e*Ka*Kb*Kc) --> 52059300/(220000000*0.92*0.85*0.89)
Evaluating ... ...
Kd = 0.339999973875947
STEP 3: Convert Result to Output's Unit
0.339999973875947 --> No Conversion Required
FINAL ANSWER
0.339999973875947 0.34 <-- Modifying Factor for Stress Concentration
(Calculation completed in 00.004 seconds)

Credits

Creator Image
Created by Vaibhav Malani
National Institute of Technology (NIT), Tiruchirapalli
Vaibhav Malani has created this Calculator and 600+ more calculators!
Verifier Image
Verified by Anshika Arya
National Institute Of Technology (NIT), Hamirpur
Anshika Arya has verified this Calculator and 2500+ more calculators!

Endurance Limit Approximate Estimation in Design Calculators

Stress Amplitude for Fluctuating load given Maximum Stress and Minimum Stress
​ LaTeX ​ Go Stress Amplitude for Fluctuating Load = (Maximum Stress Value for Fluctuating Load-Minimum Stress Value for Fluctuating Load)/2
Endurance Limit of Rotating Beam Specimen of Steel
​ LaTeX ​ Go Endurance Limit of Rotating Beam Specimen = 0.5*Ultimate Tensile strength
Endurance Limit Stress of Rotating Beam Specimen of Cast Iron or Steels
​ LaTeX ​ Go Endurance Limit Stress = 0.4*Ultimate Tensile strength
Endurance Limit Stress of Rotating Beam Specimen of Aluminium Alloys
​ LaTeX ​ Go Endurance Limit Stress = 0.4*Ultimate Tensile strength

Modifying Factor to Account for Stress Concentration Formula

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

What is Modifying Factor?

A modifying factor is a correction factor applied to account for real-world conditions that influence the strength or performance of a material or component. These factors adjust theoretical calculations to include effects like surface finish, size, temperature, or loading conditions. They are essential in engineering to ensure designs accurately reflect practical scenarios, improving reliability and safety in applications.

How to Calculate Modifying Factor to Account for Stress Concentration?

Modifying Factor to Account for Stress Concentration calculator uses Modifying Factor for Stress Concentration = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Surface Finish Factor*Size Factor*Reliabilty Factor) to calculate the Modifying Factor for Stress Concentration, Modifying Factor to Account for Stress Concentration formula is defined as a dimensionless value that adjusts the endurance limit of a material to account for stress concentration effects in machine design. Modifying Factor for Stress Concentration is denoted by Kd symbol.

How to calculate Modifying Factor to Account for Stress Concentration using this online calculator? To use this online calculator for Modifying Factor to Account for Stress Concentration, enter Endurance Limit (Se), Endurance Limit of Rotating Beam Specimen (S'e), Surface Finish Factor (Ka), Size Factor (Kb) & Reliabilty Factor (Kc) and hit the calculate button. Here is how the Modifying Factor to Account for Stress Concentration calculation can be explained with given input values -> 0.333082 = 52059300/(220000000*0.92*0.85*0.89).

FAQ

What is Modifying Factor to Account for Stress Concentration?
Modifying Factor to Account for Stress Concentration formula is defined as a dimensionless value that adjusts the endurance limit of a material to account for stress concentration effects in machine design and is represented as Kd = Se/(S'e*Ka*Kb*Kc) or Modifying Factor for Stress Concentration = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Surface Finish Factor*Size Factor*Reliabilty 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, 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, 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, The Size Factor takes into account the reduction in endurance limit due to an increase in the size of the component & Reliabilty Factor accounts for the reliability that is used in the design of the component.
How to calculate Modifying Factor to Account for Stress Concentration?
Modifying Factor to Account for Stress Concentration formula is defined as a dimensionless value that adjusts the endurance limit of a material to account for stress concentration effects in machine design is calculated using Modifying Factor for Stress Concentration = Endurance Limit/(Endurance Limit of Rotating Beam Specimen*Surface Finish Factor*Size Factor*Reliabilty Factor). To calculate Modifying Factor to Account for Stress Concentration, you need Endurance Limit (Se), Endurance Limit of Rotating Beam Specimen (S'e), Surface Finish Factor (Ka), Size Factor (Kb) & Reliabilty Factor (Kc). With our tool, you need to enter the respective value for Endurance Limit, Endurance Limit of Rotating Beam Specimen, Surface Finish Factor, Size Factor & Reliabilty 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 Modifying Factor for Stress Concentration?
In this formula, Modifying Factor for Stress Concentration uses Endurance Limit, Endurance Limit of Rotating Beam Specimen, Surface Finish Factor, Size Factor & Reliabilty Factor. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Modifying Factor for Stress Concentration = 1/Fatigue Stress Concentration Factor
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!