Calculate weld section modulus, bending stress, and required fillet weld size or length from weld throat, leg, length, moment, and allowable stress.
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Weld Section Modulus Formula
The following two example problems outline the steps and information needed to calculate the Weld Section Modulus.
WSM = s^2*L / 6
Variables:
- WSM is the Weld Section Modulus (mm^3)
- s is the plate thickness (mm)
- L is the length of weld (mm)
To calculate the weld section modulus, square the plate thickness, then multiply by the length of weld divide by 6.
How to Calculate Weld Section Modulus?
The following steps outline how to calculate the Weld Section Modulus.
- First, determine the plate thickness (mm).
- Next, determine the length of weld (mm).
- Next, gather the formula from above = WSM = s^2*L / 6.
- Finally, calculate the Weld Section Modulus.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
plate thickness (mm) = 3
length of weld (mm) = 10
WSM = s^2*L / 6 = ?
