What's new
By:
Christian Community Forum

Register a free account today to become a member! Once signed in, you'll be able to participate fully in the fellowship here, including adding your own topics and posts, as well as connecting with other members through your own private inbox!

Titanic Submarine Disaster

Expedition Unknown's Josh Gates team hired a Navy consultant after encountering issues during a Titan test dive to 100 feet.

Josh Gate’s team backed out of doing a Titanic documentary with Ocean Gate;

winknews.com

Previous passengers recall ill-fated Titan: ‘I 100% knew this was going to happen’

After the Titan’s fatal implosion near the Titanic shipwreck on Sunday, some people described experiences that foreshadowed the tragedy.
winknews.com winknews.com
 
Front end dome from Titan recovered with inspection window missing. I’ll bet the window failed first, then the rest of the sub imploded.

If you listen to the Navy’s acoustic recordings of the implosion, there are three to four separate distinct loud implosion sounds.

I’ll bet the viewing window, which supposedly was not rated for Titanic’s depth, failed first.

www.cbsnews.com

See photos of recovered Titan sub debris after "catastrophic implosion" during Titanic voyage

The U.S. Coast Guard said "presumed human remains" recovered from the sub's wreckage would undergo analysis by medical professionals.
www.cbsnews.com www.cbsnews.com
 
3Nails4Given said:
Front end dome from Titan recovered with inspection window missing. I’ll bet the window failed first, then the rest of the sub imploded.

If you listen to the Navy’s acoustic recordings of the implosion, there are three to four separate distinct loud implosion sounds.

I’ll bet the viewing window, which supposedly was not rated for Titanic’s depth, failed first.

www.cbsnews.com

See photos of recovered Titan sub debris after "catastrophic implosion" during Titanic voyage

The U.S. Coast Guard said "presumed human remains" recovered from the sub's wreckage would undergo analysis by medical professionals.
www.cbsnews.com www.cbsnews.com
Click to expand...
Hard to say, since the carbon fiber used in the hull was expired and the ends were simply "glued in". It oulwn't surprise me if everything went in trip-hammer fashion one after another though.
 
I looked for videos of the unloading of the debris at the Canadian port. I had some observations. Note that the titanium end bells were separated from the titanium rings that were glued to the carbon fiber tube. Those 17 bolts that attached them appear to have severed during implosion. If you look at the acrylic window it has a small ring with bolts too that is missing. Sub sea pressure would have wedged the acrylic window in so the metal ring is only to hold it in till at pressure. I don't think the window failed first. With an implosion driven by the carbon tube failure there will be an "after shock" wave going back out after the original compression. A reflected wave, just like in an organ pipe. The after shock would have blown the window "out."

If you look closely at the groove in the titanium ring where the carbon fiber was glued you will see no evidence of either adhesive or carbon fiber. edit:was able to get a better video ... you see no evidence of carbon fiber but do see residual glue covering about 50% of the joint. If you do the calculations, the carbon tube would be classified as a "thick wall" cylinder. This is important, because a thin wall cylinder fails in buckling, but a thick wall cylinder fails in the compression members. That means it didn't buckle like stepping on a pop can, but "blew apart" when the compression surfaces "exploded" from the stress induced strain.

In our composite work, if the resin, aramid or carbon were a day over shelf life requirements they were scrapped. Reality though, those materials would be OK for a few days or weeks after that date. Depends how soon he got the materials and cured them. With time the polymers absolutely do degrade and need to be scrapped. I will bet Boeing will not be selling out of date carbon fiber anymore. (As a side note, in days past I purchased aluminum rod ends from a scrap dealer for my projects. I found some perfect shapes that were scrapped by an aerospace manufacturer in my area. The scrap dealer would not sell them to me, and said: "We must melt those down, that was our agreement with the company." This was to absolutely assure those parts did not make it back into the supply chain as grey market parts.)
 
Last edited:
bigMoose said:
I looked for videos of the unloading of the debris at the Canadian port. I had some observations. Note that the titanium end bells were separated from the titanium rings that were glued to the carbon fiber tube. Those 17 bolts that attached them appear to have severed during implosion. If you look at the acrylic window it has a small ring with bolts too that is missing. Sub sea pressure would have wedged the acrylic window in so the metal ring is only to hold it in till at pressure. I don't think the window failed first. With an implosion driven by the carbon tube failure there will be an "after shock" wave going back out after the original compression. A reflected wave, just like in an organ pipe. The after shock would have blown the window "out."

If you look closely at the groove in the titanium ring where the carbon fiber was glued you will see no evidence of either adhesive or carbon fiber. If you do the calculations, the carbon tube would be classified as a "thick wall" cylinder. This is important, because a thin wall cylinder fails in buckling, but a thick wall cylinder fails in the compression members. That means it didn't buckle like stepping on a pop can, but "blew apart" when the compression surfaces "exploded" from the stress induced strain.

In our composite work, if the resin, aramid or carbon were a day over shelf life requirements they were scrapped. Reality though, those materials would be OK for a few days or weeks after that date. Depends how soon he got the materials and cured them. With time the polymers absolutely do degrade and need to be scrapped. I will bet Boeing will not be selling out of date carbon fiber anymore. (As a side note, in days past I purchased aluminum rod ends from a scrap dealer for my projects. I found some perfect shapes that were scrapped by an aerospace manufacturer in my area. The scrap dealer would not sell them to me, and said: "We must melt those down, that was our agreement with the company." This was to absolutely assure those parts did not make it back into the supply chain as grey market parts.)
Click to expand...
Truly appreciate your insight, bigMoose!
 
bigMoose said:
I looked for videos of the unloading of the debris at the Canadian port. I had some observations. Note that the titanium end bells were separated from the titanium rings that were glued to the carbon fiber tube. Those 17 bolts that attached them appear to have severed during implosion. If you look at the acrylic window it has a small ring with bolts too that is missing. Sub sea pressure would have wedged the acrylic window in so the metal ring is only to hold it in till at pressure. I don't think the window failed first. With an implosion driven by the carbon tube failure there will be an "after shock" wave going back out after the original compression. A reflected wave, just like in an organ pipe. The after shock would have blown the window "out."

If you look closely at the groove in the titanium ring where the carbon fiber was glued you will see no evidence of either adhesive or carbon fiber. edit:was able to get a better video ... you see no evidence of carbon fiber but do see residual glue covering about 50% of the joint. If you do the calculations, the carbon tube would be classified as a "thick wall" cylinder. This is important, because a thin wall cylinder fails in buckling, but a thick wall cylinder fails in the compression members. That means it didn't buckle like stepping on a pop can, but "blew apart" when the compression surfaces "exploded" from the stress induced strain.

In our composite work, if the resin, aramid or carbon were a day over shelf life requirements they were scrapped. Reality though, those materials would be OK for a few days or weeks after that date. Depends how soon he got the materials and cured them. With time the polymers absolutely do degrade and need to be scrapped. I will bet Boeing will not be selling out of date carbon fiber anymore. (As a side note, in days past I purchased aluminum rod ends from a scrap dealer for my projects. I found some perfect shapes that were scrapped by an aerospace manufacturer in my area. The scrap dealer would not sell them to me, and said: "We must melt those down, that was our agreement with the company." This was to absolutely assure those parts did not make it back into the supply chain as grey market parts.)
Click to expand...
Yes Moose all of the above mentioned weak points in the construction of this submersible borderline on criminal negligence in its construction.

The out of date carbon fiber, the plexiglass viewport rated for 1300m, the epoxy bonding of the titanium rings to the carbon fiber hull, the cylindrical hull in lieu of spherical, dissimilar metals immersed in salt water, camper world lighting, hardware store ballast and drop system, Logitech game controller, all non certified systems. I’m sure I missed a few things.

In essence this failure is worse than the Titanic disaster itself.
 
3Nails4Given said:
The insurance companies are withholding life insurance payments to Mrs. Rush pending possible criminal charges. She has threatened to sue them.
Click to expand...
Oh, okay. Thank you. I have a feeling that the insurance companies may have the legal right to withhold payment pending possible criminal charges, and also in view of the fact that her husband likely contributed to his own death and that of the others.
 
You must log in or register to reply here.

Similar threads

mattfivefour
The Washington Stand: Trusting in Wealth for Security Is Always a Titanic Mistake
Replies
0
Views
111
mattfivefour
mattfivefour
R
I think this analysis by Britt Gillette is exactly correct ...
Replies
1
Views
66
Margery
Margery
Back
Top