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2015-08-10T10:20:31.954Z
PolarMomentOfInertia
Polar moment of inertia
simon.cox@csiro.au
Simon Cox
Polar moment of inertia
The polar moment of inertia is a quantity used to predict an object's ability to resist torsion, in objects (or segments of objects) with an invariant circular cross-section and no significant warping or out-of-plane deformation. It is used to calculate the angular displacement of an object subjected to a torque. It is analogous to the area moment of inertia, which characterizes an object's ability to resist bending.