/sci/ - Science & Math

[Anonymous No.15517229]

Literally why carbon fiber though? Why titanium end caps? Why not just use several inch thick steel throughout?

It's almost as if they just wanted to impress laymen by boasting of exotic titanium and carbon fiber materials in its construction

[Anonymous No.15517231]

IS THAT... LE CURRENT THING?? HNGGGHHHHHHHH I'M POSTING!!!!!!!!!!!

[Anonymous No.15517349]

>>15517229
steel is weak and crumbles easily, see 9/11

[Anonymous No.15517402]

>>15517231
I act like this and say this.

[Anonymous No.15517407]

>>15517229
OH MY GOD ANOTHER THREAD ABOUT THE OCEANGATE TITAN SUBMARINE?!?!?! I HEARD IT WAS LITERALLY INDESTRUCTIBLE BUT THE FAGGOTS THAT MADE IT WERE RETARDS AND PUT A BLIDEO CONTROLLER INTO IT SO ALL THE FAILSAFES EXPLODED AND THEY DIED?!?!?!?!

[Anonymous No.15517409]

>>15517229
I bet it was the window, which was apparently only rated for 1300m

[Anonymous No.15517435]

>>15517229
>Literally why carbon fiber though? Why titanium end caps? Why not just use several inch thick steel throughout?
(((aerospace)))

[Anonymous No.15517473]

>>15517229
Because he's cutting edge and experimental and lives for risk

[Anonymous No.15517478]

>>15517229
I heard they were actually too close to atlantis so the US shot them down and now have to put on a circuis show to pretend they're alive still

[Anonymous No.15517594]

>>15517229
Business people are more risk tolerant than your average person. Criminals have the same mentality. It gives them a thrill when their risk-taking works out.That's the reason why the CEO went down along with them.

[Anonymous No.15518329]

>>15517594
"practically indestructible" says man who bought off safety checks.

[Anonymous No.15518336]

>>15517229
It would have been fine if they didn't add the death tube to sell tickets to tourists

[Anonymous No.15518462]

>>15518329
>build an "unsinkable" sub to visit the wreck of the "unsinkable" Titanic
>it sinks

NOW that's what I call irony

[Anonymous No.15518482]

>>15517478
No, it was agartha they got too close to.

[Anonymous No.15518540]

>>15517478
If it really was the US some fucking Navy fucktard would be on War Thunder or Discord bragging about how he hit it head on with a torpedo and outlining the book he's planning on writing about it

[Anonymous No.15518560]

>>15517229
Because they wanted a tube shape, in order to accommodate 5 people.
And it worked, until it didn’t.
What they SHOULD HAVE DONE was send it down to the Titanic until failure, then build a thicker one, and test that out.
Then, they’d know they have to build a new submersible after every n dives.
This fucktard just sent oceanic research back about a decade or two.

[Anonymous No.15518565]

>>15517473

[Anonymous No.15518720]

>>15518560

what they SHOULD have done is to have two separate spheres, but hey what the fuck do I know?

[Anonymous No.15518721]

>>15517231
>>15517407
ZOMG THIS IS TAKING UP ATTENTION AND BOARDSPACE THAT SHOULD BE PUT TO BETTER USE LIKE LOW EFFORT VAX THREAD #6GORRILLION AND1 OR FLAT EARTH FACEBOOK SCHIZO POSTER #666!!! I’M LITERALLY BEING WHITE GENOCIDED RIGHT NOW!!1!

[Anonymous No.15518816]

>>15518560
They should've made a sub with a high margin of safety, like 2x, instead just barely meeting the pressure requirements. It's very obvious that everyone involved in designing and approving the sub only has "book" smarts and made way too many assumptions.

[Anonymous No.15518843]

>>15518565
That's not my take, it's his.

>You know, at some point, safety is just pure waste. I mean, if you just want to be safe, don't get out of bed, don't get in your car, don't do anything. At some point, you're going to take some risk, and it really is a risk-reward question."

Rush added that his Titan sub features, and trips to the Titanic wreck, can be done outside of what's been previously done, saying: "I think I can do this just as safely while breaking the rules."

[Anonymous No.15518874]

>>15517229
Because memes
The dude was trying to meme his degenerate company
There rlly is no hope for humanity

[Anonymous No.15518877]

>>15518721
Ok boomer

[Anonymous No.15518888]

They should've just copied working designs. This one can descend 11k meters, almost twice the depth of Titanic.

https://en.wikipedia.org/wiki/Bathyscaphe

[Anonymous No.15518955]

>>15518888
Unlikely the US navy is going to give out engineering and construction drawings for some random civilian to build with.
Stockton also saved a lot of money using nintendo controllers, altec lansing speakers, equipment from campstore, screws from home depot, and only using one button rather than the hundreds that most modern subs have.

[Anonymous No.15518976]

>>15518843
>dont get out of bed, dont do anything
well im alive and he isnt so checkmate

[Anonymous No.15518978]

>>15518888
>>15518955
Trieste is 60s shit, civilians can do much better now. You just have to not be retarded.

[Anonymous No.15518979]

>>15518888
You don't understand at all. This guy Rush didn't even want to use syntactic foam for a float because it would be "cumbersome." Let alone a giant gasoline tank.

[Anonymous No.15518985]

Gaben wins again with a hearty chuckle, rubbing and slapping his big 'ole buddha belly that barely fits into his 2 seater FULL OCEAN DEPTH sub

[Anonymous No.15518993]

>>15517229
>Why not just use several inch thick steel throughout?
Why not just use several inch thick carbon fibre? Would be lighter.

[Anonymous No.15518996]

>>15518993

Why does it need to be light? Subs need to be heavy to counteract buoyancy

[Anonymous No.15519010]

>>15518976
>im alive
But are you really living?

[Anonymous No.15519020]

>>15518462
It's the most ironic thing event in history except maybe oedipus

[Anonymous No.15519026]

>>15518462
>Passengers of a submersible die due to a rich asshole's hubris and disregard of all safety precautions on the way to view a ship that sank with it's passengers due to a rich asshole's hubris and disregard of all safety precautions
History really is a circle.

[Anonymous No.15519038]

>>15518993
>Why not just use several inch thick carbon fibre
compressive strength

[Anonymous No.15519045]

>>15517229
>Literally why carbon fiber though? Why titanium end caps? Why not just use several inch thick steel throughout?
Hubris and not cool enough. Carbon fiber is worthless during compression.
>It's almost as if they just wanted to impress laymen by boasting of exotic titanium and carbon fiber materials in its construction
Yes, it was smoke and mirrors to distract from the complete disregard of all engineering standards that have kept submersibles and submarines operating for 70 years. It's why James Cameron is alive and complaining after 35 dives in his submersible and this rich dickhead died after a handful and now his company is going to be liquidized to pay all the wrongful death lawsuits.

[Anonymous No.15519066]

Can anyone calculate how fast the water would be moving when the carbon fiber shattered and they got super soaked by the prankster sea? 500m/s? 1000m/s? Water cutter jet speed? I need closure.

[Anonymous No.15519068]

>>15519066

Fast enough to compress the air so it superheats and burns them for a nanosecond before they're crushed

[Anonymous No.15519084]

>>15518985
Is this a motherfuckin Albania flag?
How can Serbia even compete

[Anonymous No.15519120]

>>15519066
this is an accurate 3d construction built by supercomputer farm simulations
https://www.youtube.com/watch?v=S7lvrg4yzAc

[Anonymous No.15519128]

>>15519120
Way worse than I thought. I didn't realize the entire thing would be crushed. I just thought it would shatter in one spot and then the pressure would equalize.

[Anonymous No.15519426]

>>15519128
The pressure did equalize.
After everything inside was completely destroyed within about 0.02 seconds.
The people inside were literally turned into dust (including their bones and teeth) before their brains could process anything.
The shockwave and water moved faster than neuron transmissions.

[Anonymous No.15519435]

>>15517229
>Literally why carbon fiber though?
Because that's the best he could make in his garage.

[Anonymous No.15519436]

rules and regulations are gay
*implodes like a boss*

[Anonymous No.15519440]

>>15518955
Trieste was built by 2 civilians. The Navy bought it after they went to the Mariana Trench. Apparently old White guys and their 60's technology were able to get to the deepest part of the ocean no problem. Whether its the moon or the sea floor you want old White guys on your team.

[Anonymous No.15519441]

>>15518560
It really doesn't matter how many times they test it, carbon fiber will never be a good hull material.
1. It weakens each time you use it. This is unavoidable, each time you stress the hull you have at least some fraction of the fibers snapping. This continues until the point of catastrophic loss.

2. You cannot build one, count how many cycles it takes to fail, then build another and stay safe by staying under that number. Each carbon fiber hull is unique with unique flaws in construction. The carbon fiber composite is never perfectly uniform, nor even close to it.

[Anonymous No.15519445]

>>15518955
All existing and past bathyscaphes and bathyspheres were designed and constructed by civilians and then purchased or rented by Navies.

[Anonymous No.15519448]

>>15518996
no, your weights need to be heavy to counteract buoyancy, you do not want your submarine to sink on its own. you want a way to surface which does not require any energy sources

[Anonymous No.15519454]

>>15519066
>Water cutter jet speed?
Not quite, but pretty close to it. The bodies were shredded by the impact of the water.

[Anonymous No.15519459]

>>15519066
watter cutter speed is about right, you even can see a brief flash of light when it happens from the violent compression.

[Anonymous No.15519562]

>>15517229
Actually carbon fiber material is perfectly fine material to use to build a sub,THAT BEING SAID....

Carbon fiber is notoriously difficult to join with other materials to create durable joints. Also material itself is very tricky to produce and inspection of Carbon fiber material is difficult using modern tehcnology. Carbon fibers properties makes creating metal carbon fiber joints difficult as for example titanium has different elasticity parameters and in stress tests materials turn out to have quite different properties potentially leading to failure points in points where carbon fiber is joined with other materials. I suspect that failure occured at titanium-composite joint.

>https://www.compositesworld.com/articles/composite-submersibles-under-pressure-in-deep-deep-waters


Whole situation is kinda sad, because this incident will most likely dampen any effort in designing composite submarines, which IMHO are a way forward instead of metal ones, but require very careful design and proper failsafe engineering around joints with other non-composite materials.

On the positive side the crew had instant death.

https://www.youtube.com/watch?v=PXgKxWlTt8A

Just like Crab.

[Anonymous No.15519615]

>>15519441
Fatigue is not unique to carbon fiber. It is just a uniquely big pain in the ass to characterize.

[Anonymous No.15519642]

>>15517229
Anybody who fell for this blatant psyop is under total mind control. If you read into this story, watched the constant mainstream media barrage or started making memes about this complete fake event, then you are a mind controlled NPC simple as. Before this one, it was the Alien narrative most people just gobbled up like it was fresh cum. Not to mention coronahoax in the years before. With each new psyop they are exposing the cattle more and more.

[Anonymous No.15519688]

>>15519615
Steel and titanium have a fatigue limit; what that means is that if you stay under the fatigue limit, those materials will never fail due to fatigue no matter how many times you cycle them.

Carbon fiber, like aluminum, has no fatigue limit. Small stresses over time will eventually cause a fatigue failure, no matter how small.

[Anonymous No.15519719]

>>15518816
>a high margin of safety
Yep, they said it was designed to go to 4000m and the Titanic is at 3800

[Anonymous No.15519721]

>>15519642
Meds

[Anonymous No.15519736]

>>15519642
>a shitty submarine imploded? No, that CAN'T be true, it must be a giant conspiracy
Meds, unironically.

[Anonymous No.15519745]

>>15519642
The US shot them down on Sunday for trying to go through a cave to agartha, and had to wait until they "ran out of Oxygen" to confirm it was an "implosion." That's why there's no pics of the debris field, it would prove the entire (((NASA))) facade is fake as shit.

[Anonymous No.15519747]

>>15518462

[Anonymous No.15519753]

>>15518843
>"I think I can do this just as safely while breaking the rules."
"I am smarter than literally years of history and hundreds of experts that have led to the current standards"
-man who died due to ignoring safety standards

[Anonymous No.15519763]

>>15518888
That’s basically a large gasoline balloon with a super thick steel sphere for the crew attached to the bottom

[Anonymous No.15519767]

>>15519745
>The US shot them down
It was a submarine, not an airplane you dumbass ESL. You don't "shoot down" submarines, you SINK them.

[Anonymous No.15519768]

>>15519767
Do you think I give a fuck damn or shit which verb they decimated the civilians with chud?

[Anonymous No.15519771]

>>15519768
Clearly you don't give a shit, which is why you're bad at this and why I am insulting you for it.

[Anonymous No.15519775]

>>15517229
OP answered their own question. Forming a pressure vessel from multiple pieces is not a good idea, never mind making a composite from different materials. A coke can is better engineered than that death-trap.

[Anonymous No.15519778]

>>15519771
I'll bet people love to hang out around you, please explain the pedantry of the word shoot for me please :^)

[Anonymous No.15519781]

>>15519775
>Forming a pressure vessel from multiple pieces is not a good idea
It's fine if you do it with steel or titanium. How do you think DSV pressure hulls are normally made? They're welded; that's the only way to make them.

Of course after being welded, it becomes "one piece"

[Anonymous No.15519783]

>>15519778
You can shoot a submarine with a torpedo. But you can't "shoot down" a submarine. When you shoot a submarine with a torpedo, you sink it.

[Anonymous No.15519791]

Imagine trying to land on Venus with a carbon fiber vessel.

[Anonymous No.15519850]

>>15517229
It's so hilarious how fucking stupid this thing was built that I'm glad it crumpled like a tin can.

[Anonymous No.15519853]

>>15519850
>Stay in your room. You don't have the balls for the real work kiddo.

[Anonymous No.15519854]

>>15519853
LMAO This guy is salty tomato paste right now.

[Anonymous No.15519952]

titanium test

https://files.catbox.moe/i3wrv6.mp4

[Anonymous No.15519979]

>>15519642
wow you're so smart

[Anonymous No.15519988]

>>15519642
You're not actually as smart as you think you are

[Anonymous No.15520004]

>>15519783
Shoot a submarine
It goes down
By definition, the submarine has been shot down

Learn English before you insult another person's English.

[Anonymous No.15520016]

>>15520004
Vessels at sea are sunk, not shot down. That’s not the language that’s used mate

[Anonymous No.15520027]

>>15517407
hey calm down ok?

[Anonymous No.15520284]

>>15520004
You are an autistic retard. Planes are shot down. Ships and submarines are sunk. Planes are not sunk, even if they land in the ocean. Ships are not shot down, even though they sink.

[Anonymous No.15520370]

>>15520284
a plane can crash/be shot down and sink afterwards. First 2 are mostly horrible and violent same conclusion, the latter is getting sucked down to the abyss
On that Note, Flying boats With some sort of sails or oars are the superior vehicles,crash? No Problem most of the planet is water which you can relatively easily land on.Sink?You literally float on the sea like a boat because you ARE a boat with wings and a propeller

[Anonymous No.15520375]

>>15520370
A plane can only sink if it was previously floating. So a floating sea plane, float plane, or even a A320 floating on the Hudson can sink, since their previous state of being was floating.

[Anonymous No.15520410]

>>15520375
crashed plane can float or sink very slowly, so it might actually float or the latter, it can practically float for a while
The plane being only shot down is better than sinking aswell is what im saying and that flying boats are the superior vehicles

[Anonymous No.15520452]

>>15520410
>flying boats are the superior vehicles
Yes.

[Anonymous No.15520482]

>>15519719
Thats not a good margin for structures. Buildings ue factors from 1.25 to 2.5, I asume naval would use something similar.

[Anonymous No.15520507]

>>15519775
>their
>on 4chinz
>the biggest autist board at that
You can safely assume op is a guy

[Anonymous No.15520631]

>>15517231
>No green arrow

[Anonymous No.15520646]

>>15520631
penis sex

[Anonymous No.15520689]

>>15518560
Before riding in this thing I would have asked them how many full scale test articles they built, how many were destroyed during full depth dive testing and how many dives until hull rupture from cyclic stress induced failure. If they didn't do this kind of accelerated life cycle testing they had no business taking on paying passengers.

[Anonymous No.15520736]

>>15518816
It did though
>Initial design work indicated that the hull, to be rated for 4,000m depth with a 2.25 safety factor, should be 114 mm thick or 4.5 inches, which OceanGate opted to round up to 5 inches (127 mm) to build in an additional safety margin.
https://www.compositesworld.com/articles/composite-submersibles-under-pressure-in-deep-deep-waters

[Anonymous No.15520752]

>>15520689
It's just a little water Champ. C'mon, be a big boy.

[Anonymous No.15520759]

>>15520736
Even if the initial design was adequate, they also needed to understand how the carbon fiber hull behaves over multiple dive cycles. A pressure vessel that's repeatedly pressurized and depressurized from thousands of pounds per square inch is going to change over time, mostly likely for the worst. This has been well known since the deHavilland Comet in the 1960s.

[Anonymous No.15520762]

>>15520752
Nah I think I'll stay up here and watch anime and play vidya and breathe air

[Anonymous No.15520810]

>>15520762
Pussy

[Anonymous No.15520823]

Considering the level of intelligence of the scammies, I would have stopped the dive around 800 meters, then play a pre-recorded video on the monitor.

[Anonymous No.15520836]

>>15519066
These were the first people that I can think of who were sent through the equivalent of a black hole.

[Anonymous No.15520854]

>>15520823
I wouldn't even step foot in anything which looks like that on the inside.

[Anonymous No.15520911]

>>15520482
What point was it’s a small margin, but that didn’t come across from my post. I’d agree with what you said

[Anonymous No.15521124]

>>15520823
It's not even a nice controller, jesus christ. It's that shit controller your friend busts out where there's a heavy dead-zone and the shoulders are sticky. 25 years ago.

[Anonymous No.15521133]

>>15520823
>adventurous and low-inhib = low intelligence
retard detected.

[Anonymous No.15521139]

>>15517409
1300m are 4265ft
titanic is in 3840ft depth. ooopsie woopsie! i mean 3840meters
freedumb units conversions wont stop killing burgers

[Anonymous No.15521243]

>>15517229
Sub needs to be neutrally buoyant with crew+ballast. Steel is much heavier than either titanium or carbon fiber so the sub will have less crew capacity (or it will need a larger internal volume, so even bigger and thicker walls).
>>15517409
imo it could really be either that or the composite. Sub already dived several times and the window is completely transparent so it should be fairly easy to spot defects with the right tools, should it not? I would think it's more difficult with the carbon fiber.

[Anonymous No.15521248]

>>15518993
it was several inch thick

[Anonymous No.15521250]

>>15521243
Just coat the steel with that syntactical foam stuff or whatever to increase the floatiness cuz I can't spell buoyancy

[Anonymous No.15521555]

>>15521250
>Just coat the steel with that syntactical foam stuff
That resists 400bar?

[Anonymous No.15521889]

>>15518560
They should have built this

[Anonymous No.15521899]

>>15519120

[Anonymous No.15521903]

>>15519615
Carbon fiber is like clothing. It wears down each time you wear/wash it.

[Anonymous No.15521928]

>>15519952
>doesn't use titanium
>still calls the shitbox "Titan"

[Anonymous No.15524037]

>>15517229
Those five got scammed. What you call a pioneer and risk taker is nothing more than a showman and a scammer. Science and Nature proves he's wrong and does not have the tolerance

[Anonymous No.15524053]

his name was stockton crush

[Anonymous No.15524108]

>>15520736
2.5" being rated as safe enough was obviously fucking wrong you idiot. They clearly didn't incorporate cycling of the hull. I bet 2.5" would survive a dive exactly twice.

Why would you trust the initial math off the cuff from the same people that never xrayed or scanned the sub in any sense?

[Anonymous No.15524118]

>>15519688
>Steel
also crumbles if it's hardened too far, can't speak on titanium but I've worn out and torn many a paperclip and notebook ring

[Anonymous No.15524576]

>>15519426
How can water move faster than that?

[Anonymous No.15524666]

>>15517229
You need a tube to hide the fake. You need an intransparent wall to hide that there are no passengers in the boat (on a tourist boat you use a transparent one). Steel is more heavy so more expensive to transport. You are cheap in that and details because you know that part is just a fake. You make two metal caps because you know the audience is to dumb to see the obvious. That these heavy masses destroy carbon tube integrity while running to surface swell during transport. Proven here.

[Anonymous No.15524693]

>>15524118
>What is elastic/plastic deformation

Also look up cold working, where steel gets stronger if you bend it back and forth.

[Anonymous No.15524699]

>>15519426
In the same second you are In the sub and at the pearly gates of heaven with no context on how that happened.

[Anonymous No.15524960]

>>15521928
It wasn't named after titanium anon.
The state of this board.

[Anonymous No.15525059]

>>15517229
haven't you noticed the more expensive things are they lean towards carbon fiber materials? (Mountainbikes,motorbikes,cars)

And also, not all people who have a lotta money have brains

[Anonymous No.15525101]

>>15524118
>steel also crumbles if it's hardened too far,
If you stay below the fatigue limit, steel will never do that. When you wear out paperclips, you are pushing them past the fatigue limit.

[Anonymous No.15525103]

>>15524666
>intransparent
The word is "opaque" and you have brain damage.

[Anonymous No.15525155]

>>15517229
>Literally why carbon fiber though?

[Anonymous No.15525193]

>>15525155
I keep thinking about this and I am truly racking my brain as to how this sub is actually built. In other pics there are lights visible behind the carbon fiber so I am assuming that interior wall isn't actually the pressure vessel.

If they really did screw right into the hull then I'd start betting my money on the mount being the exact reason why it exploded. Especially if some idiot passenger leaned on it and made the screws want to pull out.

[Anonymous No.15525194]

>>15519038
>>15518993
compression is a minor problem, it still has some compressive strength that is decent.

carbon fiber is absolutely abysmal at shear strength and that's why they died.

[Anonymous No.15525212]

They were probably recording the descent with their phones. There is a theoretical possibility of recovering the last few moments before the big crunch.

[Anonymous No.15525227]

>>15525193
You can see the inner sleeve here
>>15520823

[Anonymous No.15525535]

>>15525059
That is mosty due to weight savings. Not the most relevant aspect for a submarine.

[Anonymous No.15525595]

>>15525155
WOW

[Anonymous No.15526522]

>>15525155
>>15525193
>>15525595
You can screw into carbon fibre dumbasses

[Anonymous No.15526526]

>>15518985
>Gaben
Wow. Didn't know it was his.

[Anonymous No.15526527]

>>15525193
So no, the mount was just screwed into an inner layer and not the hull itself. I wouldn't blame the mount, I would blame the hull material which was actually showing active signs of physical wear: the carbon fiber.

[Anonymous No.15526528]

>>15518996
Because higher depth high pressure. eventually walls become so thick that average density of the hull is larger than water and thing can't swim.

[Anonymous No.15526583]

>>15526522
F1 aero fins aren't being subjected to hundreds of atmospheres of pressure dumbass

[Anonymous No.15526678]

>>15517229
>Literally why carbon fiber though? Why titanium end caps?
When there is not a incredible amount of lamps on your boat than the hull construction doesn't matter. You have no intention to go deep sea were it's dark. Once upon a time this forum had sniffed out fakes like that in realtime. Now it is full of NPC's not able to think.