Titanic tourist submersible goes missing with search under way

[CyberB0b]

Here's my guess about what's going on. They are fine. There's a billionaire aboard, and the more attention this gets, the more people will want to go on this trip, once they are "rescued." Billionaire wants to invest in the business. This is his way of promoting it .

We shall see.

I heard James Cameron bought Oceangate and paid these guys to fake their death, because he’s opening his own ocean tourism business and wanted to be the white knight.

We shall see.

 

[Pass2Run]

Which brings us back to design or fatigue. I would still like to learn more about CF fatigue, what causes it, how quickly it occurs, and what indications of fatigue can be inspected before failure.

It's online. You can watch YT videos of them testing it. It was a terrible idea to use carbon fiber. My new hypoyhesis is the carbon fiber hull gave way after being cracked from other dives.

 

[Pass2Run]

I heard James Cameron bought Oceangate and paid these guys to fake their death, because he’s opening his own ocean tourism business and wanted to be the white knight.

We shall see.

The name "gate" does give rise to suspicion. Also the fact the coast guard knew about an implosion...just seems weird. Not sure what Patterson could offer a billionaire though so I'm not buying it. Salty theory...

 

[rags747]

From everything I've watched, that's not something easy to do. I guess someone would have to take the time and money to do testing in a pressure chamber.

I also wonder why they chose a 5" hull. If it's so much lighter than steel, why not beef it up a little. I also think it was wound in a straight up to down pattern as opposed to the diamond shape pattern I see sometimes.

I believe the one that went down to the bottom of challenger deep was only 2.5 inches of steel. But i don't think it was a tube.

Agree, I think a Diamond or criss cross pattern would be better as well as opposed to the straight pattern that we have seen. Obviously I am far far away from being an engineer though!

 

[gtb1943]

The name "gate" does give rise to suspicion. Also the fact the coast guard knew about an implosion...just seems weird. Not sure what Patterson could offer a billionaire though so I'm not buying it. Salty theory...

There comes a point where stupidity becomes epic.

 

[Tabascocat]

It's online. You can watch YT videos of them testing it. It was a terrible idea to use carbon fiber. My new hypoyhesis is the carbon fiber hull gave way after being cracked from other dives.

I said that day one…..

 

[CyberB0b]

The name "gate" does give rise to suspicion. Also the fact the coast guard knew about an implosion...just seems weird. Not sure what Patterson could offer a billionaire though so I'm not buying it. Salty theory...

What if I told you that I heard from a reliable source that Bill Gates was backing James Cameron in this venture?

 

[Runwildboys]

Agree, I think a Diamond or criss cross pattern would be better as well as opposed to the straight pattern that we have seen. Obviously I am far far away from being an engineer though!

Right, when you think of the strength of plywood, compared to a thin flat board, it seems like it would be the same with carbon fiber.

 

[Flamma]

It's online. You can watch YT videos of them testing it. It was a terrible idea to use carbon fiber. My new hypoyhesis is the carbon fiber hull gave way after being cracked from other dives.

This seems to be the popular theory. But what if it was the viewport that gave away? Or whatever that glass was.

 

[Runwildboys]

This seems to be the popular theory. But what if it was the viewport that gave away? Or whatever that glass was.

I think another possibility is the difference between the carbon fiber's degree of distortion and that of the material of the end cap (or whatever they call it). If the two don't compress at the same rate, in the same places, even if it's an extremely minute difference, there's bound to be a breakdown.

 

[CyberB0b]

I think another possibility is the difference between the carbon fiber's degree of distortion and that of the material of the end cap (or whatever they call it). If the two don't compress at the same rate, in the same places, even if it's an extremely minute difference, there's bound to be a breakdown.

James Cameron laid it out:

They used carbon fiber, which is good for internal pressure, but not external pressure.

They also used some sort of audio detection system to check hull integrity, instead of actual pressure testing.

It was doomed from the beginning because the guy was arrogant.

 

[Flamma]

James Cameron laid it out:

They used carbon fiber, which is good for internal pressure, but not external pressure.

They also used some sort of audio detection system to check hull integrity, instead of actual pressure testing.

It was doomed from the beginning because the guy was arrogant.

Well said. He also said carbon fiber has no business down there. Mainly because it's not easy to do non destructive testing. With steel you can evaluate any damage. With carbon fiber it is much harder to locate imperfections from previous dives. Based on its composition. You can pressure test all you want, but you need to know the degree of fatigue as time goes on. There are multiple ways CF breaks down, and it's hard to pinpoint. Here is an excellent video on the subject.

 

[Creeper]

Contrary to some expert opinions, it looks like they will recover some human remains. Some experts claimed the bodies would be incinerated by the super heated air in the capsule which, due to the pressure, was estimated to be close to the temperature of the sun. But, the high temp would be only for a very short period of time, maybe not long enough to "vaporize" a human body.

https://www.usatoday.com/story/news/world/2023/06/28/ocean-gate-titan-debris-ashore/70365539007/

 

[Flamma]

Contrary to some expert opinions, it looks like they will recover some human remains. Some experts claimed the bodies would be incinerated by the super heated air in the capsule which, due to the pressure, was estimated to be close to the temperature of the sun. But, the high temp would be only for a very short period of time, maybe not long enough to "vaporize" a human body.

https://www.usatoday.com/story/news/world/2023/06/28/ocean-gate-titan-debris-ashore/70365539007/

Well sure. It's just a 5 inch piece of carbon fiber that imploded or shattered, and you have 5 individuals. Probably not much that's recognizable.

 

[Creeper]

Well sure. It's just a 5 inch piece of carbon fiber that imploded or shattered, and you have 5 individuals. Probably not much that's recognizable.

Yes, I imagine the compression did quite a bit of damage. t is surprising they found any remains, but I am guessing there was some tissue trapped inside the vessel.

 

[CalPolyTechnique]

James Cameron laid it out:

They used carbon fiber, which is good for internal pressure, but not external pressure.

They also used some sort of audio detection system to check hull integrity, instead of actual pressure testing.

It was doomed from the beginning because the guy was arrogant.

I think Cameron (and others) have mentioned the acoustical alarm was pointless because it would only provide detection of issues in real time which is useless when you’re thousands of feet under water.

That’s like a warning chime going off on a plane when it’s in a nosedive 5 feet from the ground.

 

[CowboyStar88]

It's online. You can watch YT videos of them testing it. It was a terrible idea to use carbon fiber. My new hypoyhesis is the carbon fiber hull gave way after being cracked from other dives.

Carbon fiber will also damage in the direct sunlight/heat for long periods of time. The resin will start to melt weakening the CF.

 

[CalPolyTechnique]

 

[Creeper]

I think this is a pretty good depiction of what could have happened, but it looks the the pressure chamber collapses like it was metal. I assumed carbon fiber would shatter or break. Still, it would have been quick, really quick.

 

[CalPolyTechnique]

I think this is a pretty good depiction of what could have happened, but it looks the the pressure chamber collapses like it was metal. I assumed carbon fiber would shatter or break. Still, it would have been quick, really quick.

Good point. The CF most certainly shattered.