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?