I know that back in the day, before composites reached where they are now, the crsh tubs in Formula 1 race
cars & the like: Were made out of aluminum
, bonded together with epoxy
. Where as of last check, they're fully composite.
The crash tubs being, the units which protected the driver, when he smacked into the wall @ 200mph, & the rest of the car melts into little pieces around him. Like tissue paper in a hard rain.
Also, there have been other aluminum
bonding agents which are quite unique, dead simple to apply, & very strong. So I suppose that this is possible... and likely has been for quite a while. It's just that it's taken until now for it to both; be released from the skunkworks division, & for the general populace to be ready to accept it, would be my guess.