[Fot] Testing for Composite Cracking ?

[Tony and Annie Garmey]

Gary,

Here in Seattle I use a company(con-am) that has under water sonic testing.
Used for testing raw materials before machining of parts and aircraft props
etc.



"cheapest- High performance composite" ???????

> From: Group44TR7 at aol.com
> Date: Mon, 12 Apr 2010 15:46:11 -0400
> To: fot at autox.team.net
> Subject: [Fot] Testing for Composite Cracking ?
>
> Guys
>
> What would be the cheapest, but reliable testing method to determine if
> crack lines on the surface coating a high performance composite (think
> advanced type composite) are simply cosmetic surface coating cracks or are
the
> surface lines of actual fractures in the underlying composite.
>
> The item being examined is approximately a 1 to 1 1/2 inch diamter
> hollow tube with a wall thickness of about 3/8 inch of the composite at the
> point of observable lines, the object is about 30 inches long. The item must
not
> be damaged by the testing procedure.
>
> Thanks in advance.
>
> Cary
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