Yes. Just use pins and leave it at that.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
<http://www.cesaronitech.com/> http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf Of
William Claybaugh
Sent: Wednesday, December 18, 2019 8:06 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Composite Fastners
The aluminum tube in my recent 6” static test weighed 13.9 lbsm.; a similar
Carbon fiber tube in my possession weighs 5.5 lbsm and is tested to burst at
almost twice the aluminum tubes’s burst pressure....
So I’m looking at composite tubing: I observe that the rocket industry pretty
much universally uses pins as fasteners, yet pins are the least strong choice,
analytically.
Is there some obvious—or not—reason that I should not be using a countersunk
fastener with a composite tube?
Bill