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Multirotor Aerodynamic Modelling by NASA

Maybe, I don't even know what FEA is ;)

Cool video though
FEA = Finite Element Analysis = Above my pay grade

First you model something in a CAD program like SolidWorks or CATIA, define the material & its properties & then apply stresses, etc. It's a way to do destructive, etc testing without ever even building a prototype. High level shizz.