[Tigers] non-Tiger/Carbon Fiber

[Chris Thompson]

And how did you measure the strength and rigidity?

Smit, Theo wrote:
> The goodness of carbon fiber or fiberglass depends a lot on the
> saturation of the resin into the cloth... Maybe putting the fibers under
> tension caused some effect at the microscopic level that prevented the
> resin from locking the fibers in place. Or something like that.
>
> Were both panels laid up with the same batch of resin?
>
> Theo
>
>   
>> -----Original Message-----
>> From: tigers-bounces at autox.team.net
>> [mailto:tigers-bounces at autox.team.net] On Behalf Of vegaslegal at aol.com
>> Sent: April 7, 2009 3:22 PM
>> To: tigers at autox.team.net
>> Subject: [Tigers] non-Tiger/Carbon Fiber
>>
>> Hey all.? This is marginally car related and not Tiger
>> related at all.? Still, I believe that this should be written
>> somewhere where it could be searched.?
>> If any of you have young teenagers you're familiar with
>> school science fairs.? I worked with my daughter in coming up
>> with an experiment that was actually an experiment and not
>> building a volcano or reinventing the wheel.?
>> We [she] fabricated two identical forms of carbon fiber
>> panels.? The only difference between the two panels was that
>> one panel was wetted-in on?loosely lain carbon fiber and the
>> other was wetted-in on carbon fiber under tension.? The
>> hypothesis was that the carbon fiber under tension would be
>> stronger/more rigid.
>> Curiously, the results were exactly the opposite.? The carbon
>> fiber panel with the loose carbon fiber was both stronger and
>> more rigid at about 140% of the fiber under tension.? As
>> carbon fiber is extremely inelastic and there was only about
>> 1/4 of a check less material across the 14" span of the
>> panel, I found this quite surprising.? I can only chalk it up
>> to that nominal thinness in the panel under tension or an
>> inate characteristic of carbon fiber that makes it more
>> elastic under tension.
>> This is also especially useless information because the
>> difficult process turned out to also be the inferior process.?
>> Thanks for your ear.
>>
>> Bob Nersesian
>> B382000975
>>
>>     
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