The image above represents the flexural stress. Three parameters are needed to calculate the flexural stress:Â axial load at fracture point (F), width of polymer (b), and thickness of material (d).
The formula for calculating the flexural stress:
σ = F / bd
Where:
σ = Flexural Stress
F = Axial Load at Fracture Point
b = Width of Polymer
d = Thickness of Material
Let’s solve an example;
Find the flexural stress when the axial load at the fracture point is 11, the width of the polymer is 17, and the thickness of the material is 27.
This implies that;
F = Axial Load at Fracture Point = 11
b = Width of Polymer = 17
d = Thickness of Material = 27
σ = F / bd
So, σ = 11 / (17)(21)
σ = 11 / 357
σ = 0.0308
Therefore, the flexural stress is 0.0308.
Calculating the Axial Load at Fracture Point when the Flexural Stress, the Width of Polymer, and the Thickness of Material are Given
F = σbd
Where:
F = Axial Load at Fracture Point
σ = Flexural Stress
b = Width of Polymer
d = Thickness of Material
Let’s solve an example;
Find the axial load at the fracture point when the flexural stress is 21, the width of polymer is 10, and the thickness of the material is 7.
Master Every Calculation Instantly
Unlock solutions for every math, physics, engineering, and chemistry problem with step-by-step clarity. No internet required. Just knowledge at your fingertips, anytime, anywhere.
This implies that;
σ = Flexural Stress = 21
b = Width of Polymer = 10
d = Thickness of Material = 7
So, F = σbd
F = 21 x 10 x 7
F = 1470
Therefore, the axial load at fracture point is 1470.
Read more:Â How to Calculate and Solve for Apparent Shear Stress | Slit Die | Polymer and Textile
Calculating the Width of Polymer when the Flexural Stress, the Axial Load at Fracture Point and the Thickness of Material are Given
b = F / σd
Where:
b = Width of Polymer
σ = Flexural Stress
F = Axial Load at Fracture Point
d = Thickness of Material
Let’s solve an example;
Find the width of polymer when the flexural stress is 32, axial load at fracture point is 6 and the thickness of material is 5.
This implies that;
σ = Flexural Stress = 32
F = Axial Load at Fracture Point = 6
d = Thickness of Material = 5
b = F / σd
That is, b = 32 / 6 x 5
b = 32 / 30
b = 1.067
Therefore, the width of polymer is 1.067.
Calculating the Thickness of Material when the Flexural Stress, the Axial Load at Fracture Point and the Width of Polymer are Given
d = F / σb
Where:
d = Thickness of Material
σ = Flexural Stress
F = Axial Load at Fracture Point
b = Width of Polymer
Let’s solve an example;
Find the Thickness of Material when the axial load at fracture point is 60, the width of polymer is 9 and the flexural stress is 20.
This implies that;
σ = Flexural Stress = 20
F = Axial Load at Fracture Point = 60
b = Width of Polymer = 9
d = F / σb
So, d = 60 / 20 x 9
d = 60 / 180
d = 0.33
Therefore, the thickness of material is 0.33.
How to Calculate and Solve for Flexural Stress Using The Calculator Encyclopedia
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the flexural stress.
To get the answer and workings of the flexural stress 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 for NGN 1,500 per annum 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 Polymer & Textile under Engineering.
Now, Click on Flexural Stress under Polymer & Textile
The screenshot below displays the page or activity to enter your values, to get the answer for the flexural stress according to the respective parameters which are the fracture point (F), width of polymer (b) and thickness of material (d).
Now, enter the values appropriately and accordingly for the parameters as required by the fracture point (F) is 11, width of polymer (b) is 17 and thickness of material (d) is 27.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the flexural stress and presents the formula, workings and steps too.
