HYDRAULIC PRESS VS TITANIUM AND CARBON FIBER, BENDING TEST

With the help of a hydraulic press, we will test the strength of various materials. Bending test. Brass, Titanium, Carbon fiber, Steel

[Good-idea-maker]

Absolutely completely insane that Ocean Gate could hear their pressure chamber tearing apart on every dive and they didn’t immediately abort the design and restart from scratch.

[kewintaylor]

acrylic
201kg. / 12.5 g. / ratio 16.08
fiber glass
648. /20.9. / 31.00
aluminium
657. / 26.8. / 24.51
carbon fiber
740. / 15.2 / 48.68
brass
916. / 84. / 10.9
titanium
2418. / 44.5. / 54.34
HS steel
3870. / 76.8. / 50.39

[raxormidst]

"Don't repeat at home" Yeah everyone casually has an hydraulic press lying around

[gonzalez]

Started out so good, i dont understand why you wont put the max pressure of each item in a graph at the end . Its like watching a half done video

[DrBovdin]

Interesting to see the difference between the plastic deformation of aluminium and titanium, and the brittle sudden failure of the brass and steel alloys.
Then naturally, in the light of recent events (and the naturally occurring morbid curiosity), the further comparison to various composites and acrylic became suddenly very topical and interesting in its own right.

[indyjons]

I’m honestly most impressed with Fiberglass and how slowly it fails.

[TITANa.k.a.RADIATION]

Resistances:

-7 - Acrylic: Weight: 12, 5 G/Resistance: 201 KG
-6 - Fiberglass: Weight: 20, 9 G/Resistance: 648 KG
-5 - Aluminum: Weight: 26, 8/Resistance: 657 KG
-4 - Carbon Fiber: Weight: 15, 2 G/Resistance: 740 KG
-3 - Brass: Weight: 84 G/Resistance: 916 KG
-2 - Titanium: Weight: 44, 5 G/Resistance: 2418 KG
-1 - HSS: Weight: 76, 8 G/Resistance: 3870 KG

[Daverotherham]

Shows how the way things fail matters as much as how strong they are. Some purposes, you need them to hold shape, and if they fail all is lost, some things bent is better than broken

[wl]

Would be interesting to see the carbon fiber test redone comparing parallel and cross-hatched strand orientation at various angle combinations to determine the differences in strength and failure profile.

[gabrioxgood]

now i see why making the ocean-gate submersible out of carbon fiber was a big mistake . R.I.P to the victims

[juzoli]

It would be nice to see the final chart, summarizing the strengths versus mass on a single screen.

It is also important to highlight if the material breaks or bends.

[madfictionfpv]

Im guessing titanium is used in submersibles for more reasons than just being strong and light. It also has other really good properties such as highly resistant to general corrosion in seawater and is an extremely stable metal as far as thermal expansion goes.

[Lauren.]

The carbon fiber is wild, considering what we know about the imploded sub. First, sounds like gunshots/fireworks were described in earlier dives. Then in the texts between the sub and the surface, they reported "crackling" sounds. Then apparently failure of the hull. That's exactly what's shown and heard in this example.

[phiinblade]

When the steel broke, it gave us an Excellent example of the Normal Force at work, proving that as the press pushed the Block into the table, the table pushed back against the press, launching the block upward as soon as the steel broke

[sandgrownun]

"Do not repeat this at home". No, just do it for real by trying to dive to the Titanic.

[VoidHxnter]

“I wonder why they call it high speed steel… oh that’s why…”

[wordreet]

This just showed how amazingly strong and tough fibreglass can be, and how rigid carbon-fibre is! Titanium is of course an amazing metal having almost half the weight of steel. Tool steel did what I expected.

[Willy-nuoc]

Carbon fiber, don't use it for any submarine ever. Can't handle extreme pressure

[lear]

I fully expected the HSS to snap, but I didn't think it would snap so violently.

[jasonwarren]

This channel has taught me that under enough pressure pretty much anything can be a spring.