Posted on 06/23/2023 4:46:32 AM PDT by spirited irish
James Cameron, the Oscar-winning director of “Titanic,” said on Thursday that the OceanGates’ Titan submersible that imploded underwater did so because it was not constructed out of the proper materials.
Cameron, who is considered an expert at diving and submersibles, made the remarks during interviews with ABC News and The New York Times after officials announced that they had located the debris of the vessel on the ocean floor and the five passengers on board had all died.
(Excerpt) Read more at dailywire.com ...
Carbon fiber can be an extremely strong material pound for pound in the proper application. That said the composite does dot lend itself well to repeated high stress cycling. It was the fatigue stress that doomed the craft. If the tube had gone to the bottom one time and stayed, it probably would have stayed intact indefinitely.
It was 37 years ago. I can’t remember what I ate for supper last night, much less a detail from that long ago!.............🤦♂️
My understanding is the Russians actually built a construction hall where the atmosphere was completely inert and put their welders into SCUBA gear to perform all of the titanium hull welds. Remarkable efforts made during the Cold War to find that technological edge.
I'm no engineer but after reading the knowledgable remarks of the many engineers on this thread I'm also wondering what the owner was thinking. And did he fire the 'uninspiring white guy' because he knew the sub was a death trap? Bears asking imo.
Being a NASA engineer doesn’t mean squat. What this idiot needed was some other kind of pacifier. Maybe a bottle of scotch would’ve put him to sleep
Two out of the three Mythbusters in that clip are dead. Grant Imahara tragically died of an aneurysm in 2020. Jessi Combs died in 2019, attempting to break her own four-wheel land speed record.
Absolutely nailed it.
LOL
I understood that the dive was to last a total of 10 hours. 2 hours down, 6 hours of loitering, and 2 hour return. They lost communication at 1h,45min into the dive and waited the remaining 8 hours to see if they returned.
As it turns out, and most Freepers rightfully assumed, the initial loss of communication was due the implosion. They could have waited until the cows came home and none of would have made a rat’s ass of a difference.
I agree. It sounds like the front nose cone blew off when the implosion occurred when the carbon fiber shattered. They won’t find much of the hull. If it was made of some sort of metal, it would be about the size a crumpled cigarette pack.
How ‘bout Boeing\U Washington engineering for air frame CF fuselage criteria was used to design the underwater craft. There was no direct design participation but the names and criteria could be hyped for a sales presentation?
Possibly, still blows my mind that any engineer for aerospace would think they could design a qualified submersible component, compressive stresses are literally 100% the opposite of tensile stresses.
The experience to understand either and what the pitfalls are takes years to develop in practical applications.
I am in nuclear and we analyze for extremes in both but I would NEVER presume I could design a submersible and I have been a submariner, 7 patrols, sub qualified.
My personal opinion after watching the construction of the device. Seeing them clue a titanium end bell to the CF tube made my head scream with alarms.
Titanium and CF will have different compression and expansion characteristics, and their overall compression and expansion under extreme pressure with have different rates (basically their overall movement relative to each other is different, this would cause them to pull apart in a way likely not fully understood or analyzed).
This would probably create fraying/cracking with the CF at the point where it is seamed into the titanium end bell.
I would guess after several deep dives this causes micro fraying in the CF and given the compressive strength comes from the resin matrix, not the fibers, that fraying would be enough to create a catastrophic failure once the crack was significant enough to propagate under extreme pressure.
close
lol
“Our current government dictator is a horrible creature.”
Fortunately no one here on this thread has called Biden a snake, which would be a horrible insult to all snakes. After all, snakes eat vermin and Biden is then lowest form of vermin.
Oh, piss off. Expert? BS! We all know both of them could have survived on that door.
Your name fits you.
Normal US Navy subs only dive to 500 meters. The Titan dived to 4000 meters. Not sure if you would use the same steel as for a regular sub. France and Russia have submursibles that could dive to the Titanic. If the US has them, it is very secret.
As I posted in previous threads. Carbon fiber is not good for compression loads. Try pushing one end of a rope from the other end and you get an idea.
But at least no old white men designed it.....
I think you are a bit confused. No country has a military sub that can dive to that depth. Any vessel that can is in the research class with some entering into a commercial classification, while yes they are sponsored by a country sometimes, no they are not military.
Yes, the US sponsors research like France and Russia with ultra-deep dive submersibles.
The Triton Submarine, an American-based company in Florida created the first manned submersible to reach the deepest part of the ocean in the Marina Trench, that was back in 2019.
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