Random Engineering, Physics, ..., Concepts and Ideas

[Windy_Skies]

Carbon Fiber vs Kevlar vs Fiberglass - Which one is right for YOU? - YouTube

@justcarcrazy

6 years ago

In sailplane construction, we use glass fibre extensively to handle bearing stress, where it outperforms aramid and carbon fiber. We use aramid in the crash protection zone of the canopy, where glass and carbon dust would be harmful in a crash. We use carbon fibre only where lightness and stiffness is important. Also, the stiffness you give for the raw materials is much greater than the fibre-matrix combination, with carbon fibre in an epoxy matrix having only a quarter of the stiffness of steel.

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@KompletterGeist](https://www.youtube.com/channel/UCrUpqNNKEyrKxTxocZbglRA)

6 years ago

Very interesting video. I noticed in recent kayak and windsurfboard design, the companies all hop on the carbon fibre wagon. But from the information in this video, I recon a fibreglass main construction with a Kevlar top layer would be much cheaper and more durable for those applycations, right?

@rpaull3

6 years ago

you might think that after watching this vid, but i have an old boat, and it has “flexed” so many times that those flex points become crack points, and thusly the boat is in disrepair now.