Comments by "Tony Wilson" (@tonywilson4713) on "" video.

  1. I'm also an aerospace but work in industrial control systems. From what I know regarding CF you're 100% right. Everything about this tragedy reeks of the blind arrogance of one man who could not handle anyone saying him "NO." I've seen a lot of that attitude in a variety of industries and it NEVER WORKS OUT.
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  2. ​ @GOP_Fascism_vs_DNC_Hypocrisy  Your being a bit harsh on Scott but your assessment of the failure is 100% CORRECT, especially the part about complex layering so CF can handle compression. You probably know but for others - the purpose of the complex layering is so that even under compression there are strands of the carbon fibre that are in tension. I did Aerospace engineering (late 80s) and my professor was one of the first people to model CF in Finite Element Analysis. So I had this explained to me over 30 years ago. For non-engineers and SORRY if this is longish. A way to consider this (and its NOT an exact representation) is what happens when you squeeze a SOLID block of rubber like a cube of jello you get at a desert buffet. I emphasize SOLID rubber because SOLID rubber keeps the same volume whether its stretched or squeezed. So if you squeeze a solid block of rubber in one direction then it will expand (or stretch) in one or both of the other directions. This is exactly the same for anything that does not compress. If you squeeze it 1 direction it expands in another and its how Carbon fibre weaving works. When the resin is squeezed in one direction it has to expand in another to keep its volume. It also holds for being stretched like when you stretch a rubber band it gets thinner. That means the other directions are being compressed. If you can understand this congrats as you now understand a very fundamental principle of stress analysis. Compressive stress in one direction creates tension stress in others and vice versa. So when Carbon Fibre is being squeezed the resin will expand in another direction to maintain its volume. So long as there are fibres in the other direction the resin is expanding in then those fibres are in tension and will take up the load. This is why most carbon fibre has that chequer pattern weave to it. Its so it can handle compressive stress irrespective if the compressive stress is caused by bending or stretching. In the real practical world. To make very light fuel tanks for rockets they wrap a very thin metal tank in carbon fibre. Simple fact if they made it out of solid metal it would weigh too much. There's videos here on YouTube showing this (just search "carbon fibre rocket tanks"). I'm fairly certain Scott showed this in one of his videos. You can see how they weave the carbon fibre over the outside of the tank. Even thought the load on a rocket fuel tank is tension because the pressure is on the inside there's also compression of the resin because the material the tank is made out of needs to maintain its volume. That's why they weave the carbon fibre onto the tank. Its so it can handle both kinds of stress. AND YES it also helps if the rocket gets any bending or twisting loads during launch. No go back and look at how they layered the carbon fibre onto the outside of the Titan Submarine AND YES it freaked me out.
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  3.  @GOP_Fascism_vs_DNC_Hypocrisy  And I love your tag name that's awesome.
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