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I am calculating Bending and Shear stresses in hollow beams. We have a particular kind of shell that we use for impact loading, so we put rubber discs around the steel shell.

So my question is, how will it affect the moment of inertia ? Since I know that the rubber discs will resist to the stress, can I consider only the steel shell in my calculations ?

What do you guys think ?

Thanks.

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# Moment of Inertia of a hollow beam inside a rubber shell

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