Phenolic tube mechanical properties

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camacd
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Phenolic tube mechanical properties

Postby camacd » Tue May 30, 2017 7:46 pm

I am looking for the mechanical properties of phenolic tube. In particular:
Density
tensile strength
compressive strength

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OverTheTop
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Re: Phenolic tube mechanical properties

Postby OverTheTop » Tue May 30, 2017 8:34 pm

Phenolic "what" tube? Phenolic is the resin (matrix), but what is the reinforcing? Is it paper-based, glass-based, arimid-based? Need to know.
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Scoop1261
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Re: Phenolic tube mechanical properties

Postby Scoop1261 » Wed May 31, 2017 1:28 am

I'm pretty sure he is referring to the "generic" branding of Phenolic tube in his question .... ie: cardboard based spiral wound tube impregnated with Phenolic resin , and commonly marketed by rocketry suppliers as "Phenolic Tube"
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drew
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Re: Phenolic tube mechanical properties

Postby drew » Wed May 31, 2017 10:26 am

I couldn't find much via Google but I did read this in the PML Faq.
It was first introduced because it is much stronger than cardboard tubing, with almost 5x the compression strength
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strud
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Re: Phenolic tube mechanical properties

Postby strud » Wed May 31, 2017 12:04 pm

It is indeed stronger than cardboard but compared to every other rocket airframe material other than PVC is it much more brittle.

drew
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Re: Phenolic tube mechanical properties

Postby drew » Wed May 31, 2017 3:30 pm

strud wrote:It is indeed stronger than cardboard but compared to every other rocket airframe material other than PVC is it much more brittle.


Correct. I think it has a place in certain builds, like as a motor mount for instance. Or maybe an airframe if you want to wrap it in fg and you're a glutton for sanding. I really only use it for mandrels when making airframes myself.
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AMRS Records Committee Chairman
Max Alt AGL - 23,908ft - K300 - Balls 22
Max V - 2,488 ft/s, ~Mach 2.2 - M2250 - THUNDA 2015


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