|Oct2-08, 07:21 PM||#1|
Moment of inertia for rectangular prism
I want to find the moment of inertia (a formula) for a beam rotating around the center of a face. In other words, if I'm using this diagram, then I want to find its moment of inertia if its rotated about the POINT Zc, as if a rod were taped onto the center of that face. Thanks!
|Oct3-08, 07:25 AM||#2|
Do you mean about the "vertical" axis through that point and the centre of the prism?
If so, it'll be the same as for a rectangular plate.
|Oct3-08, 07:34 AM||#3|
I've had too many problems here at work with moments of inertia (Thanks again Fred). Which moment of inertia are you looking for?
Mass moment, second area moment, polar?
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