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mccaigwatson
Posts: 3
Registered: ‎05-24-2005
Message 1 of 2 (5,986 Views)

Units of radius of gyration

5986 Views, 1 Replies
10-14-2005 03:48 AM
I am trying to find out what units are used for radius of gyration in the "Mass Properties" output. No units are displayed. I assume it is just "units" (i.e. millimetres), but I cannot be sure. Does anyone know how to confirm this? Why does AutoCAD not display units for this, even if it was only to say "Units" or "Units squared"?
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boyette
Posts: 131
Registered: ‎03-11-2005
Message 2 of 2 (5,986 Views)

Re: Units of radius of gyration

10-14-2005 06:22 AM in reply to: mccaigwatson
The units for radius of gyration are length (that is millimeters or inches or feet). It is the square root of the moment of inertia I divided by the area A, (I/A)^0.5. I is length^4, A is length^2, (I/A)^0.5 being simply length.

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