Originally Posted by
Overkill Well, worst case scenario is if the arm failed it would brake at a joint and the wheel would cave in and wobble. If you were going fast enough it could cause damage...
Mark
Uhm No
Usually when the arm fails the force after failure on the other parts which are no longer supported also have a tendency to fail (especially tie rods and sway bar mounts (depending on where failure point is)... strut is stronger, but can rip out if upper hat isn't supported). I find it VERY hard to believe you would have a situation where it would just "cave in and wobble". Usually the failure will rip the wheel off or rip it sideways and throw the car out of control. Failure is a BIG deal.
Not saying your design will fail, but failure is a big deal if it does happen. I do question anything where you are able to take a structural member and reduce 10lbs out of it. Based on that I have to suspect the margin of safety has been reduced. Typically tubular arms are able to take a couple of pounds when compared to stamped arms with no reduction in margin.