bending stress


by falah alajmi
Tags: bending, stress
falah alajmi
falah alajmi is offline
#1
Apr25-12, 08:44 PM
P: 6
hi all ,

I am a new member in physics forums and I hope I can help and get benefit from this forums .

I would ask any one knows about the moment of inertia cos i have not study it before and I have to know it to solve a bending stress problem ..

when I used the moment of inertia for rectangle as 1/3 bh^3 and when I use it as 1/12 bh^3

as I now I use the first one when the neutral axises pass through the centroid and the second one when it not pass through the centroid .. but how can I know if the neutral axises pass through the centre of gravity or not ?


sincerely
falah alajmi
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falah alajmi
falah alajmi is offline
#2
Apr27-12, 11:18 AM
P: 6
there is no one knows the answer


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