Facing error during meshing - "Model did not pass body sanity check"
Just starting looking at your model, not sure why you would build something that is an assembly (IAM) file as a single part (IPT) file to start with.
Your first feature Extrusion1 and Sketch1 us inconstrained and it's shape can be altered by simply dragging of it's components.
Loft 1 and Loft2 are symmetrical and the first feature can be simply mirrored to create the other side. The same can be said for Loft3 and Loft4.
The same can be said for the creation of the caps for the legs, if you wish to create this as a single part, create one side and mirror the other side. Work plane 4 is redundant as you should be using the Origin work planes that already exist.
You are doing far to much work and redundant work even before you get to FEA. Most likely the items that should be modeled as different parts are made from different material with different physical properties that would be required for FEA.
Do you really need the small features of the hand-grips for your FEA analysis. Most likely items such as this are what is giving you the problems with meshing.
Since this is modeled as a single part and material, items such as the hand grips that in the real world wouldn't add to the strength of the handle bar, in this case would increase the sectional property of the handle bars.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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