What I have is imported data (.IGES) that was converted to SOLIDWORKS. I have then isolated the base that is an assembly with 77 "dummy" parts. I have now exported that to a .sldprt that is basically a SOLIDWORKS part with each actual part acting as a body. The company I'm working with usually takes my .sldasm and converts them to multibody parts anyways. Does SOLIDWORKS see this as the same thing? This is a weldment with no hollow parts, only solids. Can FEA be ran on this?