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Tourist submarine exploring Titanic wreckage disappears in Atlantic Ocean

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Quoatable quote of the day at 1:27 "The carbon fiber is coated with Rhino liner which is sort of what the military uses, it stops water penetration into the carbon fiber at high pressure"

Aaron Z
What a fukkin tool
 
This article makes it seem like the tube was never up to the task at 3k meters?


So basically some textbook engineer did textbook engineer shit but it's newsworthy because "first".

Not saying FEA isn't useful but I'd wager that a lot of those "best guesses" stack up in a way that makes the overall results a lot less reliable than is being portrayed (as is par for the course when engineers engage in these kinds of speculative exercises).

It's also better than the "engineers" that designed the thing:stirthepot:

 
I agree with that but I also realize several CF experts are on record saying that this tube design was not acceptable for the pressures involved, before construction, and it did fail...
 
Looks like the bobbin was pulled out, from the video that redneckengineered linked to:

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And before the inner liner was installed:
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Inner liner installation:
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Aaron Z


I just spent the time to watch the video and screen grabbed the exact three pictures. Should have just kept scrolling.:flipoff2:


I was always under the assumption that they would have left the thimble in place.
 
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Quoatable quote of the day at 1:27 "The carbon fiber is coated with Rhino liner which is sort of what the military uses, it stops water penetration into the carbon fiber at high pressure"

Aaron Z
Yeah; I couldn't believe when he said that.

My jobsite tool chest is coated with Rhino Liner....:laughing::homer:
 
So basically some textbook engineer did textbook engineer shit but it's newsworthy because "first".

Not saying FEA isn't useful but I'd wager that a lot of those "best guesses" stack up in a way that makes the overall results a lot less reliable than is being portrayed (as is par for the course when engineers engage in these kinds of speculative exercises).

It's a decent analysis, but reality is very sensitive to boundary conditions. In particular the end bell junction is critical. As seen in the simulation, very high stresses occur here because of the different properties. However, since it's glued together and not really very strong in terms of radial shear it is not clear exactly how the stress would occur in the real world.

Also somewhat confused by the final simulation - this shows failure initiating at the center, but stress concentration is at the junction. Would expect behavior like what is shown ~9:43 - collapse from end of CF tube. He doesn't really explain why it behaves differently in the later one.

This analysis also doesn't account for why it failed this time, but didn't previously. The analysis may be right, but I think a key aspect is some form of degradation / damage to the tube.
 
A bunch of people overpaid to turn themselves into underwater baloney mist clouds.

End of story.
With apologies to the FatElectrician, is it technically a mist if it's a implosion rather than explosion?
Perhaps "turned themselves into a bologna colored cloud in the water" would be a better description?
Or just "became the newest residents of the Titanic"?

Aaron Z
 
With apologies to the FatElectrician, is it technically a mist if it's a implosion rather than explosion?
Perhaps "turned themselves into a bologna colored cloud in the water" would be a better description?
Or just "became the newest residents of the Titanic"?

Aaron Z

what is "mist"? small water particles/droplets that fall slowly or hang suspended as in 100% humidity?

yes, i think you can call someone turning back to basic elements via implosion as "mist".
 
what is "mist"? small water particles/droplets that fall slowly or hang suspended as in 100% humidity?

yes, i think you can call someone turning back to basic elements via implosion as "mist".
The solution to pollution is dilution.

They probably became just another part of the ocean pretty fast.
 
The Global News headline of Feb 29th

Haunting ‘knocking’ sound from Titan sub heard for 1st time in new documentary​


Lol, and then in the article they say , yeah, it prob was from something else. Don't let the facts get in the way of a good headline :lmao:

 
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