Find the moment of inertia about the centroidal x axis (Ixc) for the composite area shown below. Please note that you can locate the centroid by inspection, and there is no need to calculate the location of centroid due to symmetry. PL20 x 180 SI units W200 x 52 PL20 x 180
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Given: Width of each rectangle = 180 Height of each rectangle = 200 Using the parallel axis theorem, we have: Ixx = Ixx1 + A1 * d1^2 + Ixx2 + A2 * d2^2 Where: Ixx1 = moment of inertia of the first rectangle about its own centroidal axis = (1/12) * base * Show more…
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