centroidal moment of inertia

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Second moment of area — The second moment of area, also known as the area moment of inertia or second moment of inertia, is a property of a shape that is used to predict its resistance to bending and deflection which are directly proportional. This is why beams with… … Wikipedia
Radius of gyration — is the name of several related measures of the size of an object, a surface, or an ensemble of points. It is calculated as the root mean square distance of the objects parts from either its center of gravity or an axis.Applications in structural… … Wikipedia
Column — For other uses, see Column (disambiguation). National Capitol Columns at the United States National Arboretum in Washington, D.C … Wikipedia

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