For my senior project we are doing a redesign of some racing car roll cages. In order for me to do the analysis on these cages to start our design I first have to run an initial explicit dynamics simulation in Ansys. To do this we have modeled the cage in solid works using weldments. We have discovered that upon export to Ansys as an x_t file, Ansys treats each piece of the cage as a individual part not bound to anything. In short when the object impacts the cage the cage turns into each path clicked on during the weldment process. Is there a way to combine all of these parts into 1 single homogenous body? I have attached the solid works file we are working with. Thanks again for any help you can give me.