06-02-2015, 07:53 PM
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CC Member
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Join Date: May 2015
Location: near Pittsburgh,
Pa
Cobra Make, Engine: Perhaps someday; Ford 4.736 litre - formerly locked up but I've successfully disassembled it completely w/o destroying anything
Posts: 35
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degradation of structural stiffness monocoque chassis
Larry, that's a very good point.
I was Googling on "British rivets" last night and found
Aluminium monocoupes and kit cars - PistonHeads
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Of course unless the adhesive fails (which it shouldn't), it will stop the degradation of the structural stiffness at a certain point, whereas a purely rivetted monocoque will just get baggier and baggier until it becomes intolerable and/or falls to pieces, but even with bonding the stiffness of a traditional ali monocoque will degrade to the point where it is significantly worse than a (much cheaper and easier to fabricate) steel spaceframe.
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If this is true, then that quells my enthusiasm for trying a rivetted monocoque for a chassis on some other car.
Does anyone know if the aluminum bodies on the cobras "loosen" with time and vehicle use?
Forrest
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