Carbon fibre cloth & Resin

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Carbon fibre cloth & Resin

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840csi	8 840csi posted 5 Years Ago HOT Topic Details
8 Group: Forum Members Posts: 3, Visits: 39	Hi, I’m looking to make a carbon fibre bonnet for my car. First time project, have done fibreglass panels before but not carbon fibre. I watched the video on YouTube on making a bonnet using the 200gsm cloth soric cloth and 200gsm cloth. Would I be able to use 200gsm first layer and a 600gsm second layer to make the bonnet? Would this have same or better strength? Secondly roughly speaking how much resin is required per sq metre? Thanks
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840csi	8 840csi posted 5 Years Ago HOT Post Details
8 Group: Forum Members Posts: 3, Visits: 39	+x oekmont - 5/13/2020 8:31:53 AM "Strong" has a much more complex meaning than you might think in think. With 800 g/m^2 combined you will have double the carbon of the 200+soric+200 layup. So your layup will be twice as strong, but ony if you try to pull the bonnet appart in a straight line. And this is not the type of load you are looking for. The real deal here is the thickness of the layup. Your 800g will be less than 1mm in thickness, the one with soric will be almost 3,5mm. In regard of bending forces (This is the main problem here) this means the soric layup will be 49 times as rigid. Hi oekmont, thank you for your response. That makes sense as I will need the rigidity for the bonnet, this I think is the reason the fibreglass one is so heavy as I gave it several layers to give it strength and rigidity. Am I correct in thinking now that a 200+soric+200 layup would be more than sufficient for a bonnet as I will also have the under structure as well for added strength and rigidness which will also be made using carbon fibre. Thanks
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MarkMK	MarkMK posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 338, Visits: 2K	As you're intending to replicate the inner.skin as well and bond both panels together, this will provide support.and stiffness to the whole part. If lightness is important, then a 240g surface twill (looks and handles much better) backed with a 650g backing will work well. Some additional local reinforcement around fixing points would be a good idea, plus some around the outer.lip if the support skin doesn't extend right to the edge. Going down the Soric route will give you a very rigid panel, but you'll get a very noticeable hexagon-contoured print at the surface and possibily a little more weight from the resin uptake. I don't think I'd use it personally, unless it was a single skin structiure but you.can always re-make if you're not happy with the results?
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