I'm using SolidWorks to verify some calculation of centroids and area moments of inertia. In doing so I sketch on the front plane and position the sketch with respect to the coordinate system, the same way as in my calculations. When extruding the sketch and subsequently using Tools -> Section Properties the centroid always comes out correctly and the same goes for the area moment of inertia about the centroid axes.
SolidWorks also has output named: "Moments of inertia of the area, at the output coordinate system". However this does not correspond to the area moment of inertia about the x,y,z axes. I have tried to solve this by adding my own coordinate system, but this doesn't change the result of the SolidWorks calculation.
Does anyone here know how to get the "Moments of inertia of the area, at the output coordinate system" to actually be the same as the area moment of inertia about the x,y,z axes?
Thanks in advance.