Talk:Second moment of area
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[edit] Second moment of areaSome Good Content, but the equations need correctly formatting as they are not readable at present, and expansion is needed. Chrisd87 22:44, 1 January 2007 (UTC) |
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I think the second moment of area is different to the second moment of inertia.
Specifically:
Second moment of inertia = 
rather than dA. ..
The second moment of area is a more general concept. For example the static roll stability of a ship depends on the second moment of area of the waterline section - short fat ships are stable, long thin ones are not. Gordon Vigurs 08:10, 11 July 2006 (UTC)
[edit] reverting
I had several problems with the changes made by 69.251.146.46:
- The lead sentence shouldn't be about what it is confused with.
- Polar moment of area -- much less frequently used than polar moment of inertia... dead linkage
Nephron T|C 02:49, 25 August 2006 (UTC)
'I' in the stress bending eqn should be for 2nd moment of area. I referred this from 'Mechanics of solids and structures', Benham, P.P. ISBN: 0273361910
