Mass moment of inertia of an irregular area

AI Thread Summary
To find the mass moment of inertia of an irregular area about its centroid, users can utilize software like Alibre, SolidWorks, or Pro-E, which are capable of performing these calculations. While AutoCAD provides the area moment of inertia, it does not meet the user's needs for mass moment of inertia. Alternatively, breaking the area into smaller parts and calculating each section manually is another viable approach. Setting up a spreadsheet for these calculations could streamline the process, despite being time-consuming. Exploring these software options or manual methods will help achieve the desired results.
garytse86
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Hi. Please help. I'm struggling to find the mass moment of inertia of an area.

Please see picture.

I already have the centroid of the area, and the exact area.

How would I find the mass moment of inertia of this area about its centroid?

I tried using AutoCAD, but it gives you the *area* moment of inertia which isn't helpful to me?

do you guys know any programs that find the mass moment of inertia of an irregular area for you?

Thanks A LOT.
 

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Alibre can do that. I think Solidworks or Pro-E can too, but not sure.
 
Pro-E and Solidworks will definitely do it. However, you could just start breaking it up into a lot of smaller parts and calculating it yourself. I would think setting a spreadsheet up wouldn't be too difficult, just time consuming.
 
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