Carbon Fiber Race Seat

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Carbon Fiber Race Seat

Author	Message
wochi	wochi posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 31, Visits: 188	Hi all, i´m trying to do a race seat for my car buy i have no idea of how many layers i should apply to make a good compromise between cost/weight/rigidity. I was thinking in carbon/glass/soric/glass/carbon but no idea of how many layers and grams of each one. Anyone can help? Thanks in advance! David
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BlackNDecker	BlackNDecker posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 92, Visits: 251	I generally encourage the creative process...except when your safety might be in jeopardy. Think about it man, your life could be on the line with this project.
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wochi	wochi posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 31, Visits: 188	I can´t see why. I see many people using Ebay seats that everytime you seat it seems that is cracks a bit more. Most of the seats even those which are known brands are poor fiberglass and i´ve seen some of them cracking in simple daily use. So why not build something decent?
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Hanaldo	Hanaldo posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Because without crash testing, you don't know if you've got something something decent. A lot of money and engineering goes into making a road worthy seat.
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BlackNDecker	BlackNDecker posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 92, Visits: 251	wochi (30/05/2014) I can´t see why. I see many people using Ebay seats that everytime you seat it seems that is cracks a bit more. Most of the seats even those which are known brands are poor fiberglass and i´ve seen some of them cracking in simple daily use. So why not build something decent? I would never put an eBay seat in my car either. I use OEM or FIAA approved aftermarket seats. And I have trouble believing a name brand (Recaro, Bride, Corbeau, Status) aftermarket seat cracked simply from sitting in it.
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brainfart	brainfart posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 198, Visits: 1.4K	http://www.youtube.com/watch?v=aF3ll_h9EAw The video shows infusion of a seat, and what material is being used. If I were to build one I'd probably include some 5-8mm aramid honeycomb just for good measure, with the honeycombs around the attachment points filled with flox and a few localized reinforcements from the leftover carbon. Suggested layup schedule: 200 or 245g outer layer, 2*300g or so biaxial carbon, honeycomb, and the same on the other side for symmetry. Should be plenty strong, but do your own research!!
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Warren (Staff)	Warren (Staff) posted 11 Years Ago HOT Post Details
Group: Administrators Posts: 2.5K, Visits: 8.5K	For safety critical componants generally if you cant have it tested or lack the facilities/know how to do a proper structural design and strength calculations, then Generally we recommend you get someone to make it for you. However, if you copy something similar that you know is safe (in terms of general layup etc) and over engineer it a bit then you should be ok - but it is still a risk you have to understand. Warren Penalver Easy Composites / Carbon Mods - Technical Support Assistant
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wochi	wochi posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 31, Visits: 188	I can´t see why all this trouble with the seat. I´m aware that is a safety part but a door, an hardtop or even an Helmet!! are safety parts and i´ve seen those discussed. Warren: I do have one here that is a cover of kevlar with fiberglass inside. But just can´t figure how many layers and materials are on the inside. Like you said my idea was to get a good advice on the layup order and over doing it just in case.
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Hanaldo	Hanaldo posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Yes but a bonnet or door isn't going to be the difference between you walking away from an accident or you never walking again. If your car seat breaks when you have an accident, suddenly all those forces are transferred to your spine. I for one would never attempt attempts helmet either, despite knowing that the criteria for passing the various strength tests on a helmet are disturbingly low.
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wochi	wochi posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 31, Visits: 188	If you have an accident and the door breaks you will probably have razor blades in your direction so it´s worse than a seat. But if the point was me beeing aware of the danger, I already was aware of it. So I can´t see the point in keep posting "don´t do it".
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