sq225917":q5mhn7hz said:
Unless it was repaired by someone who works with composites day in day out and knows everything about the fibre and more importantly resins used to make it, bin it...
You can't just wrap it in carbon and hope the epoxy doesn't melt the old stuff. It needs to be re-bagged or moulded and autoclaved. Unless it's just some crap crack somewhere none structural. (not that there's anywhere none structural on a carbon frame).
It's asking for trouble
Yup, pretty much on the money. Yes a super-thick waller can cope with some strength loss or damage as its 'over strength', but certainly just 'filling and sanding' some araldite won't do much.
Ditto the x-ray comments too. . doubt you'll see anything. . .
This is part of the problem with composites, and why the aero companies will go to such lengths on some projects as embedded strain gauges, or 'fuse' wires within structures, to try and monitor whats going on, but the reliability of these methods isn't great.
I work in aero, and composite damage investigation is subject to a lot of research. . . MRI and dye pen will work in some instances, but you have to know how to interpret the result, particularly if the layup is odd.
On the plus side, composite delaminations are inherantly self blunting from a crack propogation perspective, but taht said I ave no knowledge of what the problem is.
Carbon frame with known dameg, probably best as a garage queen. . .
