Engineering

How to Calculate and Solve for Design Stress due to Fracture | Fracture

Last Updated on December 14, 2022

The image of design stress due to fracture is represented below.

To compute for design stress due to fracture, three essential parameters are needed and these parameters are Fracture Toughness (KIC), Applied Load Constant (Y) and Length of Crack on Surface (a).

The formula for calculating design stress due to fracture:

σc = KIC/Y√(πa)

σc = Design Stress due to Fracture
KIC = Fracture Toughness
Y = Applied Load Constant
a = Length of Crack on Surface

Given an example;
Find the design stress due to fracture when the fracture toughness is 12, the applied load constant is 6 and length of crack on surface is 2.

This implies that;

KIC = Fracture Toughness = 12
Y = Applied Load Constant = 6
a = Length of Crack on Surface = 2

σc = KIC/Y√(πa)
σc = 12/(6)√(π(2))
σc = 12/(6)√(6.28)
σc = 12/(6)(2.50)
σc = 12/(15.039)
σc = 0.797

Therefore, the design stress due to fracture is 0.797 Pa.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the design stress due to fracture.

To get the answer and workings of the design stress due to fracture 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

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 Fracture under Materials and Metallurgical

Now, Click on Design Stress due to Fracture under Fracture

The screenshot below displays the page or activity to enter your values, to get the answer for the design stress due to fracture according to the respective parameter which is the Fracture Toughness (KIC), Applied Load Constant (Y) and Length of Crack on Surface (a).

Now, enter the values appropriately and accordingly for the parameters as required by the Fracture Toughness (KIC) is 12, Applied Load Constant (Y) is 6 and Length of Crack on Surface (a) is 2.

Finally, Click on Calculate


As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the design stress due to fracture and presents the formula, workings and steps too.

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