On Thu, 24 Oct 2013 15:12:18 -0700, son_of_flubber wrote:

On Thursday, October 24, 2013 4:11:23 PM UTC-4, flgliderpilot wrote:
Actually, I'd be more concerned with being impaled or having my abdomen
shredded by shards of broken fiberglass...

I understand that the Kevlar in the composite reduces this possibility.

I have a strong suspicion that carbon would do more damage to you than
glass, though that almost certainly applies to pure carbon or glass
structures.

All the mixed composites I've seen have been approximately 50:50 kevlar/
carbon rather than kevlar/glass, so they're unlikely to shatter.

Data point: a while back people were using 3mm carbon rod as wing joiners
in competition free flight model aircraft and having problems with the
joiners breaking if the model dethermalised onto concrete. A friend found
that when he pultruding his own joiners using a 95:5 mix of carbon:kevlar
tow the joiners remained intact.



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martin@ | Martin Gregorie
gregorie. | Essex, UK
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