The image above represents stress damage resistance. To calculate stress damage resistance, four essential parameters are needed and these parameters are Elastic Modulus (E), Surface Fracture Energy (γ), Fracture Stress (σf) and Poisson’s Ratio (μ).
The formula for calculating stress damage resistance:
R”” = Eγ/σf² (1 – μ)
Where:
R”” = Stress Damage Resistance
E = Elastic Modulus
γ = Surface Fracture Energy
σf = Fracture Stress
μ = Poisson’s Ratio
Let’s solve an example;
Find the stress damage resistance when the elastic modulus is 21, the surface fracture energy is 7, the fracture stress is 12 and the poisson’s ratio is 4.
This implies that;
E = Elastic Modulus = 21
γ = Surface Fracture Energy = 7
σf = Fracture Stress = 12
μ = Poisson’s Ratio = 4
R”” = Eγ/σf² (1 – μ)
R”” = (21)(7)/(12)² (1 – 4)
Then, R”” = (147)/(144) (-3)
R”” = (1.0208) (-3)
R”” = -3.06
Therefore, the stress damage resistance is -3.06.
Read more:Â How to Calculate and Solve for Radius of Curvature | Stress Concentration Factor | Polymer Deformation
How to Calculate Stress Damage Resistance With Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the stress damage resistance.
To get the answer and workings of the stress damage resistance using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
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To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Polymer Deformation under Materials and Metallurgical
Now, Click on Stress Damage Resistance under Polymer Deformation
The screenshot below displays the page or activity to enter your values, to get the answer for the stress damage resistance according to the respective parameter which is the Elastic Modulus (E), Surface Fracture Energy (γ), Fracture Stress (σf) and Poisson’s Ratio (μ).
Now, enter the values appropriately and accordingly for the parameters as required by the Elastic Modulus (E) is 21, Surface Fracture Energy (γ) is 7, Fracture Stress (σf) is 12 and Poisson’s Ratio (μ) is 4.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia can calculate the stress damage resistance and presents the formula, workings and steps too.
