I have a L-Angle made of Al 2024-T3 Extrusion 0.0625in thickness. The legs are almost equal length 0.625 in.
The flange is represented in Femap using 2D quad elements. I wanted to calculate Section Properties of the flange, but it seems like Femap may be giving incorrect output or my methodology is incorrect. I am hoping for some guidance on the same.
Section Properties: Area A= 0.156827 Centroid (from Origin): Cy= 0.313655 Cz= -0.125 Moment of Inertia: Iyy= 0.000816805 Izz= 0.00514286 Iyz= 0. Principal Moment of Inertia: I1= 0.00514286 I2= 0.000816805 Radius of Gyration: Ry= 0.0721686 Rz= 0.181089 Angle to Principal Axes: Ang= 0.
I know for sure the area is incorrect. It should be around 0.078 in^2 or half of what Femap is calculating.
What could be going wrong? AFAIK, there are no thickness offsets specified in the model.
The cross-section calculator expects a planar mesh of the cross section for which you want properties. In the case of the L section, you would need to send in this mesh in order to get the cross-section properties -