- #1
Roomie
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Homework Statement
I'm trying to work out the moment of inertia for this L shaped beam:
http://dl.dropbox.com/u/630750/Screen%20Shot%202011-12-31%20at%2017.54.34.png
Homework Equations
(Included on my sheets below(
The Attempt at a Solution
I've made two attempts, the first one I think I did wrong as I didn't take into account that Rectangle A wasn't rotating around it's center?
Attempt 1: http://dl.dropbox.com/u/630750/Sheet1%202.jpeg
Attempt 2 I tried to correct that but Ix and Iy have came out pretty much the same, so that can't be correct, can it?
Attempt 2: http://dl.dropbox.com/u/630750/Sheet1%203.jpeg
Thanks for your help.
Also, how would I work out Ixy from this?
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