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Originally Posted by jcsaleen
Carbon Fiber is a meh there fore it will obsorb 2-5x better then a hard brittle material. & I never said it was a blanket Im jus making an Ex.
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Carbon fiber IS brittle. If you want to design something that withstands collisions, try a block of steel jacketed with kevlar.
Usually you want a ductile material (one that deforms slightly, rather than shattering) for impact absorption, because the material stays together as a cohesive piece, meaning you have more interatomic bonds to break, which means more energy gets absorbed by the sacrificial material, and not something else. Brittle materials shatter, and do not stay as cohesive pieces.
Again the strength of an individual piece will depend on how many layers of fiber you have, how they are oriented, and what type of geometry your part has. The advantage to using carbon fiber is not impact absorption, but rather high strength with minimal weight.