Source: Autoblog Green
quote: The epoxy gives the composite its compressive strength
quote: Tensile strength can exceed steel, but compressive strength is much weeker.
quote: In a failure mode where the carbon fibers have been damaged, you basically cannot repair it.
quote: Sure, you can add a CF patch, but its almost like taping a structural member together.
quote: While the filament weave helps, the matrix still takes most compression loading.
quote: So I ask you this. Have you ever done any design with composites?
quote: that is the sensible way a structural engineer would design these devices or a car
quote: 3D parts are no where near ready for most production, and they cost significantly more than reguarly fabbed parts. Gets me everytime i hear people talk about 3D printing like its ready to replace traditional manufacturing. Not going to happen in a long time, if ever.
quote: It's already been crash tested and it did poorly. But then again, does BMW ever do all that great?