The Titan Submarine, the Rolex, NASA, and the Dangers of DIY: Quality and details matter.
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- Опубликовано: 18 окт 2024
- Stay to the end to see the implosion. With of the loss of the Titan submersible, there is plenty of blame and speculation to go around. My take is that it was initially a win for DIY, but that doesn't make you a Pro. The number of traditional violations for a vehicle you could be stuck in for hours was beyond belief. Whether off-road vehicle, aircraft, or deep sea submersible, you simply cannot take shortcuts in design and components and expect reliability. That the Titan worked in the first place was from both luck and close-enough engineering. But that's where it should have stopped. The quantity of stacked faults, unknown science, and fatiguing materials doomed this craft on the drawing board. There are many single-use technologies, and this was one of them. RIP.
One of your best. And so many layers of relevant points made. I was curious about the title on the can lurking in the background...and then you started the demo... Tried not to laugh, really, I swear...🙊🙊
Great commentary and fantastic crush demo! Thanks!
Love to hear about your back ground as you definitely have an understanding of interesting topics and great at explaining things
Amazing video well explained the submarine part, not everyone can think of good ways to examplify something let alone understand the physics.
This is just a cool random youtube channel I'm so happy to be subbed to, greetings from Mexico.
Those in the 'know' knew it was a body recovery mission within hours of it going missing. They heard the bang, at the exact same time the coms dissapeared. It was quite strange the media dragged it out giving people false hope for several days afterwards.
Thought I misunderstood the discussion @2:15 until finding the mentioned Oceangate hull manufacturing video. Agree - watching them wrap successive layers perpendicular to the length axis of the cylinder (and hand skive) without changing the wind angle appears very odd for filament wet winding even in Aerospace
Great video, great watch. The Oceangate submersible certainly had design flaws as you mentioned. But the real culprit was the lack of protocol to analyze how fatigue stress was effecting the hull.
Fatigue stress is material stress resulting from repeated cycles of loading and unloading. I can't remember how many dives this sub had completed but I think it was over the course of a year or more. Every decent and ascent is an extreme loading cycle. Materials that are strong under static loads can behave very differently when subjected to cyclic loading. One great example is a wire coat hanger. The wire is quite strong in static cases and coat hanger wire is used successfully for many different ad hoc mechanical situations. But if you simply grab 2 ends of a short piece and bend it back and forth, cyclical loading, it will snap in short order.
Carbon fiber is similar as it is a brittle material that develops micro cracks during cyclical loading. These cracks become magnified and tend to propagate through the material during loading cycles. It was just a matter of time before this effect caught up with the number of dives, the fatigued material failed and the vessel imploded.
Proper protocol would be to allow the sub to perform a few dives, like less than 5, and then retire the hull to be dissected, sectioned, micrograped and completely studied so the next sub could be designed to be safer. His design worked, for awhile, until fatigue stress caught up with it.
*I've been watching your videos for a while and also a subscriber. After watching this particular video I felt the need to make a comment because of the talk of what happened recently.*
*Your demonstration of what happened to the Titan is exactly how I explained it to my wife. This video was very well explained. Thanks for talking about this and your explanation. I will definitely show this to my wife. Very sad for the crew that lost their lives.*
*Stay safe! Big Mac Sam*
why are you writing in bold?
Great observation regarding the one-way weave not being optimal.
I loved science class today thanks for the lesson doc, made alot af since using ur Rolex 4 reference
Great demonstration! Very informative. Thanks Doc.
I thought I'd spotted a Subby on that wrist. Ah, it was a Sea Dweller.
Love the channel! 👍🏻🇺🇲
Nice watch Doc. Great deep dive of info. 👍
really good video doc
There was a reason he had a difficult time finding a company willing to mold the sub. The fact that every sub built has followed strict guidelines in material, thickness and design says alot.
This was a disaster in the making from the time he thought "i can build it cheaper and lighter in my garage.
So your into bikes, cool, me too, my whole life, up until I had my hips replaced 20 years ago? Been into them since I was a kid? Absolutely love quality of all types of bikes, especially road bikes? I never was able to get a super premium ti. or C/F framed setup growing up kinda poor? The best bike I had was Cannondale mountain bike in the late 90's? $2K for a bike then, was pretty expensive, but I'd easily build a custom bike today for $20K, if I had dough and could still ride? Not a huge fan of carbon fiber, but I like my Renolds steel frames and titanium especially? I still have a Trek USA road bike, with a Shimano 600 group, nothing special, but parts? Have Campy cranks and a sweet set of 90's race wheels with Campy hubs and high end Ambrosio Tour De France worthy rims? Unfortunately, quality isn't cheap in bikes, and especially tools?
Thank you for a most interesting video & demonstration...2 questions...1st, the sub flattened as you demonstrated...would it stay that way, or would it further desintegrate as it sank to the sea floor? 2nd...there have been stories that people want to bring up the remains of these folks - considering the forces involved, would there be anything to bring up? I am not trying to be morbid or disrespectful, I am just trying to understand....would these poor folks have instantly "ignited" due to the implosion & disappeared, or would their physical remains been reduced to a "liquid" state & dissipated as the broken remains of the vessel sank to the sea bed ?
With the amount of pressure from being that deep, I imagine there would only be bones left, if even that.
My guess is, the forces beneath miles of water would pulverize whatever was inside, reducing the contents to essential molecules in a very, very short period of time.
Metal behaves differently, as you can see by pictures of the titanic resting on the bottom. Basically a piece of metal can withstand the balanced forces of pressure on both sides of say, a metal plate, without pulverizing. But human flesh? It stood no chance of resisting that impact.
Very well made video , well done Doc 👏
Many thanks for watching.
Great conventional demonstration with that can!
I remember the Specialized Ultimatre (carbon tubes bonded into Ti lugs) and the Trek OCLV (all carbon but still tubes bonded to lugs) in the early 90s, any earlier and I would have been too young.
Regards PlayStation controllers, I've heard of gaming controllers being used in some surprising situations including military applications and commercial ROVs (remotely operated submarines used by the oil/gas industry) so that on its own isn't necessarily a bad sign.
What do you do for a living doc? You seem incredibly knowledgeable on many different topics.
Great video explanation. I also own a Deep Sea. Absolutely love this beast of a watch. Hasn't left my wrist since 2013.
Thanks doc!
Wow this was awesome!!
Thanks for the video demo. Very informative. Just a point on R. Sea Deweller I believe it has been around for a lot longer than 2012 that you were exposed to it in Italy. It only comes as far as I know in stainless steel unlike the submariner version, forgot its depth limit.
You are correct. The DSSD came out on 2008. Wow, I might have gotten mine earlier than I thought. As i get older and Covid knocking out a few years, maybe I got mine in 2012. I hear the the two things you lose first when you get old are your memory and your…memory I think.
@lastbesttool
U r a great and smart guy Doc. I have learned a lot from you. On the down side of things- listening and watching your videos have set me back few $$ from buying tools that you show and I love them and hardly use them. Pls keep it up. I missed your utube for a month that you were abroad.
Thanks again.
Great video sir!
love the vids doc ! Sick watch to
Carbon fiber wasn’t a problem, titanium wasn’t a problem, the front glass wasn’t a problem. The problem is the properties of mixed materials. Titanium expands and contracts differently than carbon fiber. It’s a flaw to mix metals or materials in this case that have differences in how it handles the different pressures.
Great video and explanations. I like your Rolex watch. Unfortunately the titan submarine is different from your watch. Your Rolex is officially certified,and tested. In the news everyone is talking about the submarine which is not tested and certified by a third party. If this is true is just sad, and maybe in the future they are learning the lesson.
Just a can here ... Nothing to infer here😂😂😂
Gluing carbon tube, directly to Titanium flange ......wtf
My dream watch
Make it a reality
Sometimes people need to know that you shouldn't push limits and try to reinvent the wheel just because you can.
That's why so much of the so called " music " today is terrible and headache inducing.
There are certain things that just weren't done before for a good reason.
👍😎👍
Carbon fiber does best loaded under tension... it doesn't do so well under the remaining four 'basic stresses'; compression, shear, torsion & bend.
Submersible not submarine!