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Second Moment of Aria |
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| Aug5-10, 07:06 AM | #1 |
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Second Moment of Aria
Question:
How do you work out the second moment of aria for a hollow square beam? Attempt: I have looked over my notes and it says how to get the second moment of aria for all beams but a hollow square one. It has I beam, Circulare beams, Rectangular....... How do you go about working it out for a hollow square beam? |
| Aug5-10, 11:16 AM | #2 |
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Recognitions:
 Science Advisor |
Basically you just take the area moment of a solid square 100mm a side and subtract off the inside.
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| Aug9-10, 05:27 AM | #3 |
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thanx.
So does that mean I would work out (100mm x 100mm) - (70mm x 70mm) and us that as the aria in the formula or work out the Moment of aria for the 100mm x 100mm and take off the moment of aria for a 70mmx70mm square? |
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| beam, hollow, second moment area, square |
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