I am working on the design of a motorcycle chassis.
I modeled the frame in Onshape and imported it into Simscale. It is a simple tube-frame chassis. When the mesh is generated and I look at the cross section in Simscale, it looks hollow (only showing faces):
When I look at the cross-section in Onshape it is certainly not hollow:
How can I tell if Simscale is interpreting my part as hollow or not?