connecting carbon fiber plates/shell structures

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Lightntasty
Lightntasty
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Joined: 04 Nov 2013, 14:49

connecting carbon fiber plates/shell structures

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hello everyone,
I am currently designing a carbon fiber driver cell for a racing car. One of the major problems is that the cell will be implemented into the steel bar frame of the car. That means it can't be inserted in one piece, but has to be assembled in the car. My question is what is the best way to attach several carbon fiber parts with respect to good mechanical performance?
I would appreciate any help as I am still new to this topic.
kind regards
Paul

riff_raff
riff_raff
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Joined: 24 Dec 2004, 10:18

Re: connecting carbon fiber plates/shell structures

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What drove your decision to use a carbon composite structure for a "driver shell" in a steel bar frame race chassis?

The best way to join composite structures for safety critical applications is by adhesive bonding with supplementary metal fasteners to prevent propagation of peel failures in the adhesive bonds.
"Q: How do you make a small fortune in racing?
A: Start with a large one!"

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flynfrog
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Joined: 23 Mar 2006, 22:31

Re: connecting carbon fiber plates/shell structures

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To echo Riff Raff Screw and Glue. Its pretty common to use 9394 and a hylock fastener

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flynfrog
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Joined: 23 Mar 2006, 22:31

Re: connecting carbon fiber plates/shell structures

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It should be noted proper prep is mandatory.

http://www.niar.wichita.edu/niarworksho ... 0_JimM.pdf

http://www.henkelna.com/us/content_data ... _Guide.pdf

http://www.jams-coe.org/docs/JAMS08_pre ... .Flinn.pdf

http://www.cozybuilders.org/Oshkosh_Pre ... sh2005.pdf

http://www.niar.wichita.edu/agate/docum ... -01-08.pdf


also im not sure you have a proper joint design you probably needed some doublers in the layup all core needs to be spoiled and potted in the areas
Last edited by flynfrog on 07 Nov 2013, 21:54, edited 1 time in total.


Lightntasty
Lightntasty
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Joined: 04 Nov 2013, 14:49

Re: connecting carbon fiber plates/shell structures

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thank you very much for the help.

the reason it's made of carbon fiber is that in a side impact some components would be pushed through the driver so a strong but light weight structure is required to protect him. on top of that the team I'm working in wants to make a carbon fiber monocoque as soon as possible but doesn't have a lot of experience with structural carbon fiber parts (only nonstructural: bodywork, etc.) so this serves as an experimental assignment.

riff_raff
riff_raff
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Joined: 24 Dec 2004, 10:18

Re: connecting carbon fiber plates/shell structures

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Lightntasty wrote:the reason it's made of carbon fiber is that in a side impact some components would be pushed through the driver so a strong but light weight structure is required to protect him. on top of that the team I'm working in wants to make a carbon fiber monocoque as soon as possible but doesn't have a lot of experience with structural carbon fiber parts (only nonstructural: bodywork, etc.) so this serves as an experimental assignment.
What sort of components might protrude into the driver's location during an impact?

For purposes of protecting the driver from penetration injury by broken structures during a crash, a kevlar composite might be more effective than a carbon composite.
"Q: How do you make a small fortune in racing?
A: Start with a large one!"