flipdewaf wrote:One is reinforced with carbon fibres and the other reinforced with glass fibres…
CFRP has historically been more expensive (I’m not sure of the current situation with automated manufacturing tech) but is also lighter. One major difference is that GFRP is electrically insulative, whereas CFRP is not and so can have a bearing as to where it’s used. Cutting GFRP needs a respirator for the operator, CFRP also needs a respirator for any electrical equipment (a dremel doesn’t last long). I only have very limited experience with the two (most of the composite manufacturing work I did was ti+paper/al honeycomb but I’d guess the electrical properties of each may mean that GFRP may have some advantages in electrical bays to help with any dam he tolerance.
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gregorygoodwin wrote:From what I can see from working with composites, carbon fiber has a greater strength per amount of plies than fiberglass, but fiberglass has better thermal properties and maybe impact resistance. We see in areas where impact damage is likely, such as inboard flap lower skins, main gear door skins, and wing to fuselage fairings, can have a hybrid layup of carbon with maybe a layer of fiberglass and kevlar. Kevlar is very impact tolerant but it is also susceptible to soaking up moisture.
I thank you for asking about this and the briles rivets, structures questions don't come up too often.
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