Comments by "BZE-dt6di" (@BZE-dt6di) on "Solar Eclipse Timer" channel.

Carbon fibers have high tensile strength. In this case, their use is completely wrong, the stress of pressure is like pushing a string. If the pressure of 400 bars was applied from the inside out, the fibers would withstand it. Pressure of 400 bars from the outside is wrong. Wrap a can of Coca-Cola with string. Will it become stronger? You will dent it in your hand. The pressure from the inside will withstand. Completely inappropriate use of carbon fibers. Excuse my English, I am European.
10
1000 videos and all useless. The never-ending story of a fool who caused his own death and the death of 4 other people. I don't understand what is still being discussed here. Everything has been wrong from the very beginning. Stockton Rush is an absolute fool to use carbon fiber, which has excellent tensile strength, on a structure that requires a material with high compressive strength. UNDER COMPRESSION!!!! Carbon fiber can't do that. That's as stupid as pushing a child's toy with a string. It's the same extreme as trying to stress concrete in tension. The tensile strength here is minimal. That's why steel rods are put in concrete and stretched with great force to compress the concrete. Prestressed concrete then has great strength, see bridges for vehicles and trains. Using fibers for pressure is a technological crime.
9
His thing was flawed from the get-go. You never use carbon fiber composites in compression. This is basic mechanical engineering. Everyone with a mechanical engineering degree who worked on this thing at all should be banned from engineering for the rest of their lives.
8
1000 videos and all useless. The never-ending story of a fool who caused his own death and the death of 4 other people. I don't understand what is still being discussed here. Everything has been wrong from the very beginning. Stockton Rush is an absolute fool to use carbon fiber, which has excellent tensile strength, on a structure that requires a material with high compressive strength. UNDER COMPRESSION!!!! Carbon fiber can't do that. That's as stupid as pushing a child's toy with a string. It's the same extreme as trying to stress concrete in tension. The tensile strength here is minimal. That's why steel rods are put in concrete and stretched with great force to compress the concrete. Prestressed concrete then has great strength, see bridges for vehicles and trains. Using fibers for pressure is a technological crime.
7
1000 videos and all useless. The never-ending story of a fool who caused his own death and the death of 4 other people. I don't understand what is still being discussed here. Everything has been wrong from the very beginning. Stockton Rush is an absolute fool to use carbon fiber, which has excellent tensile strength, on a structure that requires a material with high compressive strength. UNDER COMPRESSION!!!! Carbon fiber can't do that. That's as stupid as pushing a child's toy with a string. It's the same extreme as trying to stress concrete in tension. The tensile strength here is minimal. That's why steel rods are put in concrete and stretched with great force to compress the concrete. Prestressed concrete then has great strength, see bridges for vehicles and trains. Using fibers for pressure is a technological crime.
7
Carbon fibers have high tensile strength. In this case, their use is completely wrong, the stress of pressure is like pushing a string. If the pressure of 400 bars was applied from the inside out, the fibers would withstand it. Pressure of 400 bars from the outside is wrong. Wrap a can of Coca-Cola with string. Will it become stronger? You will dent it in your hand. The pressure from the inside will withstand. Completely inappropriate use of carbon fibers. Please excuse my english, I'm European.
7
I have yet to see anyone stop at the absurdity of wrapping the hull of a submarine with carbon fiber. These fibers have high tensile strength. In this case, however, high compressive strength is needed from the outside! The strongest thread won't do it, that would have to be the pressure inside the submarine and not outside. It's like pulling a string. Or an analogy with the implosion of a large cistern, which can withstand the great pressure of its contents, but when the air is sucked out of it, collapses due to the mere atmospheric pressure from the outside. That actually happened here. The hull, solid under pressure from the inside, collapsed after pressure from the outside. I don't understand. Who invented it? When used in aircraft wings, the fibers are stressed by tension, which they can withstand perfectly, not by pressure. Similar to steel cables in prestressed concrete bridges. Using them on a submarine is a super stupid idea. Try wrapping a coke can with steel wire. Then try to squeeze it. It will go as easily as if the cable was not there. Another thing would be to pump it from the inside, it would withstand high pressure.
6
Only an absolute fool would use carbon fiber, which has excellent tensile strength, on a structure that requires a material with high compressive strength. This is as stupid as pushing a string. I won't even mention the other one. It's the same extreme as trying to stress concrete in tension. The strength is minimal. That's why steel rods are put into the concrete and stretched with great force to compress the concrete. Prestressed concrete then has great strength, see bridges for vehicles and trains.
6
I see several problems. Technical: 1. carbon fibers have high tensile strength, none in compression, completely unsuitable for vessels subjected to external pressure, 2. different thermal expansion of titanium and plastic, 3. completely unsuitable combination of cylindrical vessel and spherical ends, 4. even with such a poor design, technological indiscipline. Human: 1. Stupidity, vanity and inability of the owner to accept opinions other than his, 2. ignoring all safety regulations.
6
I see several problems. Technical: 1. carbon fibers have high tensile strength, none in compression, completely unsuitable for vessels subjected to external pressure, 2. different thermal expansion of titanium and plastic, 3. completely unsuitable combination of cylindrical vessel and spherical ends, 4. even with such a poor design, technological indiscipline. Human: 1. Stupidity, vanity and inability of the owner to accept opinions other than his, 2. ignoring all safety regulations.
5
I have yet to see anyone stop at the absurdity of wrapping the hull of a submarine with carbon fiber. These fibers have high tensile strength. In this case, however, high compressive strength is needed from the outside! The strongest thread won't do it, that would have to be the pressure inside the submarine and not outside. It's like pulling a string. Or an analogy with the implosion of a large cistern, which can withstand the great pressure of its contents, but when the air is sucked out of it, collapses due to the mere atmospheric pressure from the outside. That actually happened here. The hull, solid under pressure from the inside, collapsed after pressure from the outside. I don't understand. Who invented it? When used in aircraft wings, the fibers are stressed by tension, which they can withstand perfectly, not by pressure. Using them on a submarine is a super stupid idea. Try wrapping a coke can with steel wire. Then try to squeeze it. It will go as easily as if the cable was not there. Another thing would be to pump it from the inside, it would withstand high pressure. The plastic garden hose is reinforced with strong fibers. Thanks to them, it has great compressive strength from the inside out, but none from the outside, you squeeze it with two fingers! That's how stupid the Titan submarine is "designed".
5
I have yet to see anyone stop at the absurdity of wrapping the hull of a submarine with carbon fiber. These fibers have high tensile strength. In this case, however, high compressive strength is needed from the outside! The strongest thread won't do it, that would have to be the pressure inside the submarine and not outside. It's like pulling a string. Or an analogy with the implosion of a large cistern, which can withstand the great pressure of its contents, but when the air is sucked out of it, collapses due to the mere atmospheric pressure from the outside. That actually happened here. The hull, solid under pressure from the inside, collapsed after pressure from the outside. I don't understand. Who invented it? When used in aircraft wings, the fibers are stressed by tension, which they can withstand perfectly, not by pressure. Similar to steel cables in prestressed concrete bridges. Using them on a submarine is a super stupid idea. Try wrapping a coke can with steel wire. Then try to squeeze it. It will go as easily as if the cable was not there. Another thing would be to pump it from the inside, it would withstand high pressure.
5
Yes, but the 4500 psi pressure is applied from the inside of the container outwards, putting tensile stress on the carbon fibres. If it were applied from the outside, the container would collapse under much less pressure, the fibres have very little compressive strength.
4
Only a big fool would use carbon fiber, which has excellent tensile strength, on a structure that requires a material with by a jump in compressive strength. This is as stupid as pushing a string. I won't even mention the other one.
3
I don't understand what is still being discussed here. Everything has been wrong from the very beginning. Stockton Rush is an absolute fool to use carbon fiber, which has excellent tensile strength, on a structure that requires a material with high compressive strength. UNDER COMPRESSION!!!! Carbon fiber can't do that. That's as stupid as pushing a child's toy with a string. It's the same extreme as trying to stress concrete in tension. The tensile strength here is minimal. That's why steel rods are put in concrete and stretched with great force to compress the concrete. Prestressed concrete then has great strength, see bridges for vehicles and trains. Using fibers for pressure is a technological crime.
3
The hull was ideal for observing corals and clams in coastal waters.
2
The compressive strength of carbon fibers is zero.
2
@SyntaxDaemon Carbon fiber submarines do not exist, there are pressure vessels stressed by pressure from the inside.
2
I see a big problem in gluing the hull to titanium. Just the different thermal expansion is a problem. I'm not talking about technological indiscipline.
2
@Jake-bt3fc One visit to a bicycle repair shop would have convinced them this was a terrible design. It is well known that carbon fibre bikes routinely fail where metal parts interface with the carbon fibre components. The materials have completely different thermal expansion properties. I see several problems. Technical: 1. carbon fibers have high tensile strength, none in compression, completely unsuitable for vessels subjected to external pressure, 2. different thermal expansion of titanium and plastic, 3. completely unsuitable combination of cylindrical vessel and spherical ends, 4. even with such a poor design, technological indiscipline. Human: 1. Stupidity, vanity and inability of the owner to accept opinions other than his, 2. ignoring all safety regulations.
2
@Jake-bt3fc Unfortunately, every dive of the poorly designed hull seriously damaged it, and we already know the result.
1
He probably only went to school on Saturdays when the teachers weren't there.
1
Or to observe oysters in a pond, but they must not muddy the water with the propellers of the drive.
1
Mr. Rush's brain could not be found on land before the dive. There was none.
1
 @ky1ebetts Every dive of the poorly designed hull seriously damaged it, the cracking sounds were a serious warning, but the adventurer ignored them. We already know the result.
1
@bingeciren He probably only went to school on Saturdays when the teachers weren't there. The janitor then presented him with a diploma.
1
I have yet to see anyone stop at the absurdity of wrapping the hull of a submarine with carbon fiber. These fibers have high tensile strength. In this case, however, high compressive strength is needed from the outside! The strongest thread won't do it, that would have to be the pressure inside the submarine and not outside. It's like pulling a string. Or an analogy with the implosion of a large cistern, which can withstand the great pressure of its contents, but when the air is sucked out of it, collapses due to the mere atmospheric pressure from the outside. That actually happened here. The hull, solid under pressure from the inside, collapsed after pressure from the outside. I don't understand. Who invented it? When used in aircraft wings, the fibers are stressed by tension, which they can withstand perfectly, not by pressure. Using them on a submarine is a super stupid idea. Try wrapping a coke can with steel wire. Then try to squeeze it. It will go as easily as if the cable was not there. Another thing would be to pump it from the inside, it would withstand high pressure. The plastic garden hose is reinforced with strong fibers. Thanks to them, it has great compressive strength from the inside out, but none from the outside, you squeeze it with two fingers! That's how stupid the Titan submarine is "designed".
1
@reallyhappenings5597 Your life doesn't depend on that paddle.
1
@mastpg The hull of your sailboat is stressed by waves from the outside, I estimate the pressure to be up to 3 bars. It cannot be compared to a poorly made cylinder, also poorly glued to titanium and with an external pressure of 300 bars.
1
@mastpg How else can one respond to an irresponsible adventurer who ultimately murdered 4 people and committed suicide?
1
@mastpg Maybe the translation isn't perfect, I'm not American.
1
@Jake-bt3fc The difference is that if your carbon bike frame breaks, you might break your mouth. If a fiber breaks in a poorly designed submarine, you'll end up as the CEO of Ocean Gate.
1
@kayrunjaavice1421 I am a qualified engineer. A carbon fiber scuba tank and other uses are stressed by pressure from the inside out and the fibers are stressed by tension, that's OK. When stressed from the outside, the fibers are stressed by pressure, they have no strength, only the epoxy holds the pressure, the tank collapses inward, implodes. Composite materials with carbon fibers crack very quickly, without much warning, no visible deformation, like metals titanium and others. Wrong from the start, wrong choice of material, wrong shape, wrong combination of materials and bad bonding. Totally inappropriate use of carbon fiber for an externally pressurized vessel, even if 12 out of 10 Boeings recommended it.
1
@robertbackhaus8911 When compressed, the carbon fibers have no strength, and the whole hull is held together only by epoxy. It is an example of technical dilettantism. The materials have completely different thermal expansion properties. One visit to a bicycle repair shop would have convinced them this was a terrible design. It is well known that carbon fibre bikes routinely fail where metal parts interface with the carbon fibre components.
1