1. Apr 14, 2005

### chandran

what is radius of gyration? How this is practically applied ? Any application example website?

2. Apr 14, 2005

### arildno

Given an object of mass m and arbitrary shape, its radius of gyration with respect to a fixed axis is the number $$r_{g}$$ so that the moment of inertia "I" of that object with respect to that axis can be written:
$$I=mr_{g}^{2}$$
Assuming you've got a way to measure applied torque and angular acceleration, the object's radius of gyration can be determined experimentally.

3. Apr 16, 2005

### chandran

any application in practical?

4. Apr 27, 2005

### haynewp

Columns, it is the determining factor for Euler buckling.