[PSUBS-MAILIST] buoyancy

[Hugh Fulton via Personal_Submersibles]

Sean,
Forgot to mention "TLAR" is short for "That Looks About Right"
;)




-----Original Message-----
From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
On Behalf Of Sean T. Stevenson via Personal_Submersibles
Sent: Thursday, 12 November 2015 8:26 a.m.
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] buoyancy

Alan, how did you do that calculation?  What layer count, thickness,
component volume fractions and principal fiber orientations did you use?

Sean


On 2015-11-11 12:15, Alan James via Personal_Submersibles wrote:
> Hank,
> I did a quick calc on a sphere of nominal dimensions made of epoxy / 
> fiberglass.
> With external pressure it had a depth of 4347ft, with internal 3785ft. 
> I should have posted the results in psi, but you get the picture.
> The big thing to me would be that if you ruptured it by hitting 
> anything, or so it failed, you would go down like a lead balloon.
> Alan

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