Fact : Modern helmets are made more effective against bullets, and in the past helmets were made as strong as possible but not made effective against bullets.
Not really a fact, rather a general opinion that would be comparable to saying "Dogs are more effective than cows". Modern helmets come in a variety of shapes, sizes, and grades when it comes to protection against bullet resistance, blast resistance and how comfortable it is to wear.
I know it's been mentioned, but these helmets are meant to stop small things going very fast, not heavy things going slowly. Kevlar has AMAZING tensile strength, but it literally has the compressive strength of cotton, because like cotton it's a fabric. You don't need to stop a bullet from pushing in the helmet, you need to stop the bullet from getting through the helmet. That's where kevlar obliterates steel, particularly for its weight.
If that's true, why did the pointy side of the hammer break the kevlar helmet surface so easily when hit, but practically made no dent on the old steel helmet? I don't know, man...
@@deafinki Because that's literally what I said, it has poor compressive strength. A hammer isn't a bullet or a piece of shrapnel. The hammer is slow and heavy (comparatively speaking), it breaks the polymer holding the helmet together because it has more momentum than a piece of shrapnel. However, it didn't go through the kevlar, nor would piece of shrapnel.
@@deafinkibecause when you hit with hammer it continues applying force way slower because of your hand fixing it on one place. If you stop applying force as fast as bullet will, it won't break as much. Also, there's a difference between durability of helmet and how much it protects. Because Kevlar is fabric, it's way better at absorbing force compared to steel which is more likely to move because of serious impact, and that's at least distraction, maybe even head damage if it straps won't distribute force enough.
Two guys in a 1960s factory "So Jim, you think this helmet will see real action?" "Nah Bill, I bet it'll be crushed by a hydraulic press in about 50 years time for peoples amusement" "Wut?"
@@macbird-lt8deWho tf are you trying to "roast" right now? And for what reason? You were practically talking to no one, it might've as well have been a wall you were talking to.
I can explain why the old helmet did 5x better than the new one. Steel helmets, like the old one, are obviously made of steel, and steel is extremely rigid and it's point of bending is quite high compared to other things. However, the new one was most likely plastic and Kevlar. Plastic, is self-explanatory while Kevlar, is more complex. Kevlar is extremely strong in stopping fast impact things, like bullets. But once you get slow in it, like with a knife, the fibers of the Kevlar slowly wear apart and break, like what was seen in the video. Be on watch for enemies with hydraulic presses though.
Having witnessed several high velocity round impacts on aramid and Kevlar helmets; the kit does its job beautifully. The round enters and cuts through several layers before being caught between two layers on the helmet. The round then follows the layer and tracks around the helmet before either flying out around the back or, running out of steam and sticking in the helmet. Amazing bits of kit. Lightweight, phenomenal protection and gives confidence to those wearing it.
I will take some of the older kevlar helmets over that thin steel wall soviet helmet anyday. In fact I find the kevlar helmet superior to the more lighter modern helmets with the hear protection holes cut out of them on the sides.
...the press is an interesting test, and you're spot on above, but if someone was dropped straight down from 10,000 feet and impacted a flat hardened steel surface, the steel helmet is the choice!
Awesome Yeah, that Kevlar helmet is a number of layers pressed together with PVB resin. The press doesnt do it justice. Seeing how it protects against shrapnel and rounds brings a whole new appreciation for the modern aramid helmet.
The kelvar is the more suitable choice. The reason is that it is supposed to deflect objects, bullets, and protect your head. Take, for example, a bicycle helmet. It is not supposed to stay together but absorb some of the pressure. When you use just steal, it won't break, but it won't absorb any of the pressure/energy. Though the kelvar isn't meant for slow pressure, it is meant for fast, small objects, which is shown in the beginning. Also, the kelvar has cushions that protect the skull and prevent sharp objects to poke through. (Feel free to do your own research. Have a wonderful day or night :D)
Your first sentence makes no sense. It's clearly not more suitable. Did you see the video? Suitable for what? There are lots of uses for these so what do you mean? Suitable for what? Suitable for bike accidents or bullets? Kevlar is not more suitable for everything.
In 1967, my cousin Charles was on his second tour in Vietnam with the 1st Cav. He was riding in the back of a Jeep when he took a round in his head, thru his steel pot. The round entered his helmet and circled inside , destroying his skull. I served with the 25th and 3rd Infantry 4 years later. This helmet comparison brought these memories back.
I remember when the Kevlar first came out. We were shown one of each shot. The steel pot only had a dimple in it. The Kevlar had a splintered hole through it. I thought to myself, "why ?" Of course I really didn't know if the same weapon had been used on both. I really did enjoy how much more comfortable the Kevlar than the steel pot. Lot lighter , the steel pot always gave a person a tension headache. The great thing about the steel pot was that you could turn it over and heat up water if needed.
Luckily, if a soldier was ever put in a situation where the ceiling was slowly applying pressure to the helmet from above. The body would give in first leaving the helmet intact.
The kevlar helmet is probably by far the best at protecting against gunfire. Though it has relatively weak compression strength, it is layered to be more effective at stopping bullets. The steel helmet however might be worse against bullets, even a 9mm could potentially pierce it if it didn't get deflected.
@Frozenmonkey2 which is the point I'm trying to make, a kevlar helmet is better at stopping bullet impacts in their tracks, while steel is prone to deformation and puncturing. I'm not trying to start an argument about damn military helmets
I am impressed by the workers helmet. You would imagine that it is just to protect you from small objects like tools or such falling down from a construction, like it doesn't look super robust with all that plastic. But from how much weight it can take it looks like it could protect your head even if a building collapses on you.
C’est vrai, moi aussi je ne pensais pas que ce genre de casque avait une telle résistance ! Malgré tout ce test est très limité pour rendre compte de la réelle efficacité d’un casque .
The older steel helmets were really meant to deflect shrapnel and small fragments as well as keep the worst of the elements off your head. A Full metal jacket steel core round is gonna punch right through. I tested with an SKS and an old GI helmet and the bullets turned the helmet into a cheese grater.
Helmets are meant to protect against 2 main things: punctures and blunt impacts. The shell strength will help with the punctures, whereas blunt impact protection is all about prolonging the deceleration time of the foreign object in order to reduce the concussive forces (ex. 1000kg force over 1 second, vs 1000kg over 10 seconds). Multilayer kevlar outshines high-carbon steel in both of these areas, although it has lower overall strength against crushing forces.
Well outlined. Like...unless ur laying on ur side and the tank is rolling over your helmet only lol these compression tests are useless because your neck would snap looooooooooooong before the weakest helmet fails
Regardless of which helmet you're wearing, they aren't designed for being under that much pressure, they were made to deflect objects. Anything that falls on you weighing 1000 lbs is going to kill you, whether you're wearing a helmet or not.
Kevlar is meant to be lightweight and protect you from bullets and small projectiles. It makes sense it ressists much less pressure. The old helmet might be better at protecting against stunning objects since it's made of metal, but maybe not so much against bullets. Depends on the caliber and the distance. Plus, I'm sure it weights way more than the kevlar one. The police one is only to denfend against stunning objects like sticks and stuff rioters might throw at them. Therefore is made with lighter materials and it takes less pressure to crush it. All in all, more ressistant to pressure doesn't necessarily mean better.
I'd be more interested in seeing how they hold up to bullets and shrapnel....I don't think the helmets are designed to protect against getting slowly crushed.
Well not a surprise that newer helmets are not as tough as older versions, newer helmets wasn't designed to being crushed under pressure, however newer versions are great in shock absorption.
WWII and other wars, soldiers liked to use their steel outer helmets as multi-purpose utility buckets. Boil water, cook rations, etc. my dad was a cook in the seabees and had some interesting WWII stories.
1:29 Work Helmet - 668kg 2:33 Old Army Helmet -10,212kg 4:00 Newer Army Helmet - 1,970kg 5:14 Police Helmet - 1,815kg You're welcome, everyone that wants to skip to the good parts
That's pretty much what I expected although the old steel one was better than I expected, but I think you'll find the Kevlar one will prevent bullets whereas the others won't do so well and this is their main purpose, not preventing crushing.
Ironworkers, steel beams/tall buildings, traditionally wear kevlar hardhats. A couple guys were lifting one end of a truss (Phillips Arena) with large porto power. It kicked out fell about 35' and hit me in the head. Large crease in the hardhat. I had a headache for a couple days. Years later I'm the field safety manager for a large erection company. Used the hardhat for some show and tell, they do work
Also important to note for combat effectiveness is the amount of pressure that's absorbed by the helmet and not just how durable the helmet is. Metal will be designed to crumple in some designed situations to allow for safety further in.
The data from this video reveals the actual strength of the forged metal helmet. It's deflective, bendable and dentable to a point which buffers the impact of projectiles yet strong as cast iron before shattering. Very impressive alloy material.
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@@thomasmonahan1675 but can your brain withstand the concussion? Steel helmets weren’t designed to stop bullets, they were to stop troops being taken out by shrapnel and debris, the minor hits that would incapacitate a man with a bare head.
@@python27au helmets distribute a conencrated force on a wide area so yes it will definetely protect you from concussion. Youd have to be hitting someone incredibly almost impossibly hard to give them a concussion with a helmet on i believe
im glad everyone understands the kevlar is just as affective and more lightweight. it actually may even deflect bullets more efficiently and doesnt dent like the old one does.
It seems less effective if you compare weapons of 1968 and 2008 there's a lot of difference that goes (weapons are more advance now). But as someone mentioned the helmets are not made to handle that much weight rather designed to prevent the damage, so you seems to right about effective bullets deflection
@@vaibhavsharma4944 I fully expected that if the old one "won" there would be a million people screaming in the comments how it was better. Glad that didn't happen and people are using common sense and logic.
@@vaibhavsharma4944 If you're talking about small arms technology then you'd be wrong. The United States still uses the same cartridges that it did in 1968. While there have been iterative advancements on small arms it's not that far of a developmental leap from 50 years ago. A well designed Steel Helmet would perform just as effective at stopping handgun rounds as a Kevlar Helmet. Although Kevlar is lighter and doesn't dent. Body armor has developed faster than small arms.
There are many challenges bringing a hydraulic press to the battle field. Even more challenging to persuade enemy troops to stick their heads into the machine for a nice compression test.
@@29brendus Not everyone can afford to buy one... it's easy to say that when you have one or when you are rich... unfortunately, if you knew what the world was hiding... Anyway, it's not interesting
Interesting test but totally beside the point: Each helmet is designed for a different purpose and its resistance to compression proves not how well it has been built to achieve its intended purpose.
It's obvious that modern helmet is way more comfortable and have other additional support and purpose too but the old one with less technology and yet so strong as compare to new ones that comes out from hi-tech factory. That itself is a shame. Just my opinion 😅
@@Tholin-tm7ps keep in mind they normally would have kevlar around the helmet, the purpose for the helmet is to make sure that it absorbs impact and also prevent bullets from fully penetrating
Steel seemed to have been the best choice at the time, taking into account that the army was only thinking about blunt force at the time and not all the scientific implications of aerodynamics a bullet or high speed projectiles have, like shrapnel, and that Kevlar was a lot better for that, since it has many layers that the projectile has to go through, and that steel has only one, but they didn't realize that until the '70s. This is why the steel helmet performed better on this test.
@@theisFandy the main purpose of the steel helmet was to protect you from falling debris from artillery while in a trench, against direct fire you would strap on the additional M16 Stirnpanzer plate
@@TrueFork true. But another purpose was to reduce the death from bullets. Yes, the helmet could help you to survive even shot (from specific angle). There was interesting story from I ww. I believe British army considered to come back to the leather hats or whatever they been called as there was more injuries than before. But they didn't took into consideration that more injured was equall to less dead. Because of that they stayed and steel became the standard in the next wirld war. Why there was no cevlar helmets? Fkn technology gap. Simple.
You are wrong. The aerodynamic were very well known even in 20s. The problem was the lack of technology. That's why there was no cevlar/bulletproof jackets among the masses of soldiers during II WORLD war. There was no mass production cost effective technology. The aerodynamics of bullets and the rest was extremely well known, especially when tanks were improved in the 30s. The steel helmets were the only solution as we're relatively cost effective and possible to mass production. At certain angle the bullet would ricochet from the helmet possibly leaving you just with light wound.
@@theisFandy El gringo te cuenta que los cascos de esos años eran toscos y no pensados con los conocimientos físicos actuales de aerodinámica, transferencia de energía y todas esas weas, por lo que los cascos eran ultra pesados y no necesariamente más efectivos que los modernos.
"Those Krauts would booby trap the roads with those incredibly slow hydraulic presses. You heard a noise and then maybe 2 minutes later your leg was suddenly caught" - My Grandfather, Sgt, First Army under Omar Bradley
Must be PTSD because I believe that a Vietnam helmet....thats why it doesn't make sense, its much easier to hide a hydraulic press booby trap in the jungle than in the battlefields of WW2.
Yes a steel helmut will dent but it can be hammered back into shape with little loss of strength! I think a helmut designed with both an outer layer of steel and an inner layer of kevlar with a one-inch gap between would be more effective at stopping bullets as the steel would help blunt and slow down the round, the gap would allow for sideway dispersion of energy and the kevlar would act as a shrapnel shield. Perhaps a similar honey-combed version with rubber balls evenly spaced in the gap would also cut down on the transferred energy to the head. I think that body armor with a locking ring for supporting the outer steel shell to place the weight on the shoulders instead of the neck and the kevlar shell would be directly attached to the head giving greater bullet resistance with less weight on the neck. I believe this would be superior protection especially for the neck. In low threat areas the outer shell could be left off for comfort! Other improvements are possible! Also, helmets are used for other things such as a (steel pot anyway) a vessel to heat water in, a improvised digging tool, a not-too-comfortable seat. etc.
I know it doesnt mean anything as this isnt what the helmets are designed for, but it's still really interesting to see how they deform and how much pressure it takes to do that!
The helmets aren't designed to protect your head from being driven over by a tank. Their ability to protect against shrapnel or glancing bullets isn't going to be measured by a press. From what I've heard the biggest drawback of the kevlar helmet is you can't use it to cook soup in your foxhole.
Army helmets were introduced mostly to stop shrapnel wounds to the head, and falling debris like chunks of soil and stone raining down on troops during artillery fire.
The "worker helmet" is funny, because hard hats are meant to redirect damage. That's why they fall off your head so easily. If they just stopped falling objects dead, the force would go to the wearer's necks.
Not true. If something heavy were to hit your head and your hard hat was on tight, your head would be pushed and the object would land on your shoulders or barely miss you. While yes they redirect damage, they aren’t made to fall off. That’s why good quality hard hats are adjustable to fit tightly on your head. They also protect your head from hitting things yourself, like a low beam or ceiling and stop projectiles like blades or fragments. For example, lay a hard hat down and try to hit it with a hammer. The hat will just keep moving, like your head would if you had the hard had on tight, as you should
@@MrSpecOps Don't be so harsh. That's also the reason modern car airbags have a flight mode. When you crash they fly away to better protect you from the bus you plowed into by 'redirecting' the crash from them to your shoulders and face that are now unprotected Also the reason why boxers 'protect' their vulnerable gluteus by taking punches to the much sturdier face
@@snakevenom4954 I mean, you're right, they aren't made to fall off super easily, but they also don't strap under your chin. They aren't meant to *never* fall off.
Though the Kevlar would appear to give you less protection, it's actually better protection as it will dampen the blow you received. While the steel one will be far better at transferring the energy to the wearer.
Also, I suspect the weight they hold is very different, making for a striking difference in comfort after prolonged wear. Which might not mean much, but when you're a soldier that has to wear it all day for days at a time, it's all the difference it takes for your own body to resist longer in harsh conditions.
It’s like with old vs. new cars. Old steel carosseries will shine like a star after a crash while new cars will be crumpled up to high hell, but what we forget that inside the shiny steel box _you’d_ be crumpled up to high hell.
Don't. A single drop from 4-5 feet renders them useless. They're meant to handle one impact and that's it. Impact force is completely different than compression force.
It's clear that the kevlar soldier helmet is designed to absorb impact energy by deformation. The steel helmet took 10 tonnes, and that's far more than any neck or skull can take, and only the harness inside that helmet absorbs energy from an impact, while with the newer helmet the harness and the shell both absorb energy.
steel may took 10 tonnes with all that massive surface, but bullet only needs to make a small hole on small surface area to get the job done. Steel helmets were basically second scull if it comes to firearms - just a decoration, morale boost. Protected only from farm weapons and really weak shrapnels
@@spicydiarrhea5662 They were hardly just a decoration/morale booster, they were designed to protect against shrapnel mainly from artillery and grenades, and they did that well. Most steel helmets are also strong enough to stop things like pistol rounds, but neither old nor new helmets really help against rifle rounds.
Yall right the name should on been a dead giveaway. I searched that 73 percent of indians (non American) have helmets and hydo presses in their bed room for kink purposes
Kevlar is meant to be more for shock absorption, like the vest it's meant to divert kinetic energy from a bullet to be at a non lethal speed. Meanwhile a steel helmet is not shock absorbing, but because it is solid steel it will deflect any kind of projectile, however the shock and the kinetic energy will remain, so you can possibly have a concussion but at least you won't have a hole in your head.
I don't know about the steel helmet defecting any kind of projectile 🤔 a rock maybe lol Didn't steel helmets make death more likely as the bullet would go through one layer, stay inside and bounce around rather than pass all the way through?
@@danellboy5757 Depends on the range and bullet. I saw a WW2 training video where they demonstrated the effects of different calibers at different ranges on a German helmet. At a long enough range the helment would stop a pistol or carbine round, but nobody would choose those at long range.
Wajar karena yang lama itu rata bawahnya, dalam ilmu membangun gedung ada perhitungan untuk meratakan beban supaya tidak runtuh seperti helm diatas bawahnya lebih bundar jadi tekanannya rata agak susah hancur.
Just had the image of a guy running over no man's land in ww1 with a hydraulic press in his arms then just yeeting the entire thing into the enemy trench
@@paradyne1T101 no it’s because they made old helmets to not break at all but the newer ones are lighter and are better at their job deflecting bullets
@@krishnakode3894 No, because when you look at the other uploads like the old style steel hammer vs modern, old style concrete vs modern..etc it's painfully obvious that modern day comes up lacking in strength, quality, and durability which is a reflection on today's "make it cheap but charge a fortune for it" practice that is the blueprint of today's corporations ..I would trust you explanation about the modern helmets being better at deflecting bullets had he actually fired ammunitions at them as a proof test
On range we fired several 7,62x51 out of g3 battle rifles on areound 100M on a steel helmet using standard NATO ammunition. All hits went through like a hot knife through butter. Especially one round that only hit the most outer edge of the steel helmet, made a scorch mark for over a inch (2,5cm), denting the steel inward, then entered the helmet at nearly no angle to the steel, and then also changed course inside the helmet afterwards. Never tried this with kevlar helmets though, but a steel helmet isn´t any good for more than protecting from debris flying around your head.
Строительная каска идеально создана для своих целей, я испытал это на своей голове, когда 6-и метровая стойка хомутовых лесов, не просто упала мне на голову, а как будто кто мечом нею размахнулся. Думал перерубит вдоль на две части. Ляснуло так, что наверно вся стройка услышала. Но каска с честью сдержала удар. Старая армейская, для своего времени и своей войны, была нормальной, Современная каска, создана для своих задач, в современных войнах. Полицейский шлем не создан против пуль, если это не сфера. Этот шлем гасит удары как и строительная каска, но более улучшенный пластик, амортизационный улучшенный ременный подшлемник и сплошная круговая защита головы. Всё что нужно для разгона демонстрантов. Так что ШЛЕМЫ ВСЯКИЕ НУЖНЫ, ШЛЕМЫ ВСЯКИЕ ВАЖНЫ. Я думаю, что цель этого ролика не что либо доказать, нам. А просто показать, что каски и шлемы придуманы не просто так.
"The construction helmet is ideally created for my purposes, I experienced it on my head, when a 6-meter rack of clamping scaffolding did not just fall on my head, but as if someone swung it with a sword. I thought I would cut it lengthwise into two parts. It cleared so that the whole construction site probably heard. But the helmet withstood the blow with honor. The old army, for its time and its war, was normal, A modern helmet designed for its tasks in modern wars. A police helmet is not built to resist bullets unless it is a sphere. This helmet absorbs shocks like a construction helmet, but with improved plastic, improved shock absorption belt liner and all-round head protection. Everything you need to disperse the demonstrators. So HELMETS ARE EVERYTHING, HELMETS ARE ANY IMPORTANT. I think that the purpose of this video is not to prove anything to us. And just to show that helmets and helmets were invented for a reason." Translated.
Even when the breaking point is much higher at the steel helmet, i consider the kelvar one as the better protection against real threats because of the Absorption features and layered build.
Ww2 helemets were mostly against low impact fragments, low speed bullets, and basic "don't hit your head on stuff". They were cheap, easy and fast to produce in big quantities and we're more useful than not. They would deflect bullets and fragments but if pierced (if that surface was broken) you would be injured or dead. Modern ones can deflect but are able to absorb the impact, they would contain the bullet or fragments and some of the kinetic energy, although you would feel like getting hit in a head by Mike Tyson at least your would live. Biggest difference would be at around 90deges of impact(less likely to deflect)
It's kinda like classic cars and modern cars. Classic cars had big solid steel frames and bumpers, that at low speeds, you'd deflect most things, but high speed crashes are lethal. Modern cars have plastic bumpers, built to crumple and absorb kinetic energy.
I'd like to see how the helmets hold up to different caliber rounds, the hydraulic 'squash' was fun to watch but no one runs into a hulk smash wearing them! 🤣
the hydrolic press only proves the kevlar it is better since instead of pulling appart and ripping under high presure it crumpled and stayed intact meaning there is a good chance that instead of ripping appart after getting hit by a bullet or letting one through it would rather catch it and transfer all of the kenetic energy to the helmet
@@uncool9731 Well and in a war everybody gets hit by only one bullet. Great, then why are still some dying? After this, the second one is "free to go", so I guess, don't even start one, but humanity will never get smarter.
This reminds me of a semi-related fun fact. I wanna say it was the British army, but it was found that shortly after switching from leather helmets to metal ones, the number and rate of head injuries from combat dramatically increased. It seems counterintuitive, but this was actually a good thing since those with leather helmets rarely suffered head injuries as fatalities were not categorized as injuries.
Fun fact: roller blade wrist guards have a plastic insert that stops the wrist from bending too much during a FOOSH (falling on outstretched hand) injury - the most common fall for beginners. When they first started making the wrist guards, people would complain that the plastic insert broke when they fell over. A few companies switched to metal inserts. Then the companies found that people's wrists were breaking because the metal wouldn't break and absorb any of the force. So they went back to plastic.
0:05 *Kevlar army helmet 2008* 0:20 *Steel Army Helmet 1968* 1:28 *Helmet for workers* (Hydraulic press experiment) 2:33 *1968 Steel helmet* (Hydraulic press) 3:57 *2008 Kevlar* (hydraulic Press) 5:06 *Police helmet* (Hydraulic press) If I made any error with timestamps, do tell me.
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The point of the helmet is to protect from impact from shrapnel not a direct strike from a bullet. While the latter is often discussed, the various defense departments around the world know that one cannot be protected from a direct bullet impact. One reason to move away from steel helmets is that if round makes it through upon striking, it will bounce off the opposite wall doing damage as it travels. Therefore, an indirect shot becomes lethal rather than merely causing a wound. Kevlar is light weight, provides modest protection, and glancing shots that penetrate get lodged in a opposite wall...no additional tissue damage. The cost is that more forceful shrapnel impacts can cause the helmet to fail...crack and fracture. Metal helmets would only have dented. Though some dents can penetrate and collapse the skull. War sucks.
And that the old steel helmet would prevent bullet penetration, but not stop the brain hitting the skill. Causing a concussion, the same with big dents. Too many variables, it's not always about which is one stronger.
@@draugnaustaunikunhymnphoo6978 Old steel helmets (and new helmets for that matter) only prevented glancing shot penetration and shrapnel from any explosive source be it rounds or shells. Because most weapons fire occurs within 100 yards, a shot from any standard issue rifle will penetrate a steel helmet...or any helmet for that matter. There are many sources which will confirm that for those without military training. "Round penetration characteristics military helmets" is a good search criteria.
I don't think the Kevlar's deformation properties under more forceful impacts are actually a "cost" at all, I think it's intentional. Sure, a metal helmet wont deform as much, but that just means more of the energy of the impact is transfered to the wears head, meaning (even assuming no penetration) worse concussion etc. With a kevlar helmet that deformation allows it to absorb more of that energy and redirect it away from your head, the energy is being used to deform the helmet, so you stand a better chance of not having concussion, or at least not as severely.
With regard to the concern about bouncing off the opposing helmet wall … why not make a steel helmet lined with like 3/4” silicone gell. so that would reduce chance of penetration but also reduce the bounce back
If anyone wanted to know, the reason soldiers stopped using steel was because it was hard to obtain and it was heavy whilst Kevlar is cheap and decently strong. That steel helmet probably weighed a good 5-10 pounds and that’s sitting on your head while the Kevlar is probably like 2 or 3 pounds.
Exactly; mobility is a big factor. When you consider also that-from what I've heard-Kevlar is better against bullets anyway, there's not a great case for steel helmets today. As others have said, if the steel deforms too much under projectile impact, you'll die anyway even if it doesn't puncture. The compression strength is only useful in very specific situations where the force is 100% on the sides of the helmet, and not travelling through your body/neck. The wrong angle, and you'll die even if the helmet says intact.
Yeah, this test is pretty meaningless overall. Military helmets are meant for stopping and distributing instant pinpoint impacts, not undergoing sustained pressure. It's still satisfying to watch, though.
Brings back memories of my grandpa's stories when he used to get chased by a guy with a hydraulic press in WW2 😌
and award for the best youtube comment 2022 wins .... Meowwy 😀 killed me
🤣🤣🤣🤣 pissed my pants right now.
@@JohnWick-qw6ec Same😂😂😂
liar because hydraulic press has no legs or function to run or walk you liar go to bed and sleep instead of lying to people on the internet
@@SparrowIZ the guy chased his grandpa with a hydraulic press, it was a guy chasing him. not a hydraulic press.
Fact : Modern helmets are made more effective against bullets, and in the past helmets were made as strong as possible but not made effective against bullets.
അയ്ശെരി
Not really a fact, rather a general opinion that would be comparable to saying "Dogs are more effective than cows".
Modern helmets come in a variety of shapes, sizes, and grades when it comes to protection against bullet resistance, blast resistance and how comfortable it is to wear.
Nice
Care to put them on and test for us?
അതെയോ 🤔
I know it's been mentioned, but these helmets are meant to stop small things going very fast, not heavy things going slowly. Kevlar has AMAZING tensile strength, but it literally has the compressive strength of cotton, because like cotton it's a fabric. You don't need to stop a bullet from pushing in the helmet, you need to stop the bullet from getting through the helmet. That's where kevlar obliterates steel, particularly for its weight.
If that's true, why did the pointy side of the hammer break the kevlar helmet surface so easily when hit, but practically made no dent on the old steel helmet? I don't know, man...
@@deafinki Because that's literally what I said, it has poor compressive strength. A hammer isn't a bullet or a piece of shrapnel. The hammer is slow and heavy (comparatively speaking), it breaks the polymer holding the helmet together because it has more momentum than a piece of shrapnel. However, it didn't go through the kevlar, nor would piece of shrapnel.
@@deafinkibecause when you hit with hammer it continues applying force way slower because of your hand fixing it on one place. If you stop applying force as fast as bullet will, it won't break as much. Also, there's a difference between durability of helmet and how much it protects. Because Kevlar is fabric, it's way better at absorbing force compared to steel which is more likely to move because of serious impact, and that's at least distraction, maybe even head damage if it straps won't distribute force enough.
So guys, don’t wear a kevlar helmet while being overrun by a tank 😂
Make sense right😂
Two guys in a 1960s factory
"So Jim, you think this helmet will see real action?"
"Nah Bill, I bet it'll be crushed by a hydraulic press in about 50 years time for peoples amusement"
"Wut?"
Bru your helmet ain’t seen action since WWI.
Tell your “nurse” you want your sleeping meds now.
@@macbird-lt8deWho tf are you trying to "roast" right now? And for what reason? You were practically talking to no one, it might've as well have been a wall you were talking to.
@@dark-san. Fr
And win the test !
@@macbird-lt8debro Is onto nothing
As long as your enemy isn't running around with a 200,000 press youre good to go lol
500.000*
what if...
I invented in 3D a military equipment of the waffen ss logo th-cam.com/video/4M4LJX7hOxg/w-d-xo.html
Hahahahahaaha i laughed sooo hard with this comment
29y585 RR 8iy4qtt
I can explain why the old helmet did 5x better than the new one.
Steel helmets, like the old one, are obviously made of steel, and steel is extremely rigid and it's point of bending is quite high compared to other things.
However, the new one was most likely plastic and Kevlar. Plastic, is self-explanatory while Kevlar, is more complex. Kevlar is extremely strong in stopping fast impact things, like bullets. But once you get slow in it, like with a knife, the fibers of the Kevlar slowly wear apart and break, like what was seen in the video. Be on watch for enemies with hydraulic presses though.
"A knife" Why would you want to stab someone using a helmet in the first place?
combine the Kevlar and steel and you become god
@@eligames55yt23 because science
@@NubArnn "i have the power of kevlar and steel on my side!"
@@NubArnn This man is too dangerous to be left alive
Having witnessed several high velocity round impacts on aramid and Kevlar helmets; the kit does its job beautifully. The round enters and cuts through several layers before being caught between two layers on the helmet. The round then follows the layer and tracks around the helmet before either flying out around the back or, running out of steam and sticking in the helmet. Amazing bits of kit. Lightweight, phenomenal protection and gives confidence to those wearing it.
I will take some of the older kevlar helmets over that thin steel wall soviet helmet anyday. In fact I find the kevlar helmet superior to the more lighter modern helmets with the hear protection holes cut out of them on the sides.
...the press is an interesting test, and you're spot on above, but if someone was dropped straight down from 10,000 feet and impacted a flat hardened steel surface, the steel helmet is the choice!
Glad others are willing to wear that, personally though I'm sticking with just a baseball cap worn in this country
Awesome
Yeah, that Kevlar helmet is a number of layers pressed together with PVB resin.
The press doesnt do it justice.
Seeing how it protects against shrapnel and rounds brings a whole new appreciation for the modern aramid helmet.
spannend
The kelvar is the more suitable choice. The reason is that it is supposed to deflect objects, bullets, and protect your head. Take, for example, a bicycle helmet. It is not supposed to stay together but absorb some of the pressure. When you use just steal, it won't break, but it won't absorb any of the pressure/energy. Though the kelvar isn't meant for slow pressure, it is meant for fast, small objects, which is shown in the beginning. Also, the kelvar has cushions that protect the skull and prevent sharp objects to poke through. (Feel free to do your own research. Have a wonderful day or night :D)
We all know this. However the steel helmet was impressive nonetheless considering the era. Old school mil spec produced amazing gear for our boys
Bro that thing dose not survive 2000 kg
Your first sentence makes no sense. It's clearly not more suitable. Did you see the video? Suitable for what? There are lots of uses for these so what do you mean? Suitable for what? Suitable for bike accidents or bullets? Kevlar is not more suitable for everything.
"Do not repeat at home what you saw in this video"
Because everyone has a hydraulic press and two army helmets at home.
who doesn't?
Not only that but a police grade riot helmet
you don't ......?
Well the helmets featured in the video weren’t US army helmets
"Then you saw in this video" get it right
"hey can I borrow your helmet?"
"Sure, but don't damage it"
"Oh *_I_* won't"
"Sorry, sat on it"
"Oh don't worry I won't damage it, something else will ;)"
Clever, I like it
@The Things no just a dinosaur
@@hurricaneplane1474 My elephant stepped on it, sorry
In 1967, my cousin Charles was on his second tour in Vietnam with the 1st Cav. He was riding in the back of a Jeep when he took a round in his head, thru his steel pot. The round entered his helmet and circled inside , destroying his skull. I served with the 25th and 3rd Infantry 4 years later. This helmet comparison brought these memories back.
Did he survive?
@@mini_tinibrasil3429 No. The bullet circling inside the helmet killed him.
sorry to hear that@@Nunzio1911
@@Nunzio1911 You sure it wasn’t the round penetrating his helmet?
@@mygiftmatters It was the round
.
I remember when the Kevlar first came out.
We were shown one of each shot. The steel pot only had a dimple in it. The Kevlar had a splintered hole through it. I thought to myself,
"why ?" Of course I really didn't know if the same weapon had been used on both. I really did enjoy how much more comfortable the Kevlar than the steel pot. Lot lighter , the steel pot always gave a person a tension headache. The great thing about the steel pot was that you could turn it over and heat up water if needed.
Seems like you could also put a house's foundation on top of it. 😅
Luckily, if a soldier was ever put in a situation where the ceiling was slowly applying pressure to the helmet from above. The body would give in first leaving the helmet intact.
Would arguably be a worse fate with the helmet on lol
Much smart
@@theredcinder7437 yeah- lol
Luckily
Id think that you'd want your head to go first before your body.
The kevlar helmet is probably by far the best at protecting against gunfire. Though it has relatively weak compression strength, it is layered to be more effective at stopping bullets. The steel helmet however might be worse against bullets, even a 9mm could potentially pierce it if it didn't get deflected.
@Qefna Ija oh yeah?
True
It's like more strength per cm than strength in overall structure
@Frozenmonkey2 which is the point I'm trying to make, a kevlar helmet is better at stopping bullet impacts in their tracks, while steel is prone to deformation and puncturing. I'm not trying to start an argument about damn military helmets
@Frozenmonkey2 would u like to have steel pushed into ur skull or fiber
The Kevlar helmets are still not to good at protecting against direct hits from bullets😂 they’re more for shrapnel
I am impressed by the workers helmet.
You would imagine that it is just to protect you from small objects like tools or such falling down from a construction, like it doesn't look super robust with all that plastic.
But from how much weight it can take it looks like it could protect your head even if a building collapses on you.
C’est vrai, moi aussi je ne pensais pas que ce genre de casque avait une telle résistance !
Malgré tout ce test est très limité pour rendre compte de la réelle efficacité d’un casque .
but your neck will snap
The older steel helmets were really meant to deflect shrapnel and small fragments as well as keep the worst of the elements off your head. A Full metal jacket steel core round is gonna punch right through. I tested with an SKS and an old GI helmet and the bullets turned the helmet into a cheese grater.
Helmets are meant to protect against 2 main things: punctures and blunt impacts. The shell strength will help with the punctures, whereas blunt impact protection is all about prolonging the deceleration time of the foreign object in order to reduce the concussive forces (ex. 1000kg force over 1 second, vs 1000kg over 10 seconds). Multilayer kevlar outshines high-carbon steel in both of these areas, although it has lower overall strength against crushing forces.
A lot of text
@@zakeck too much for u?
Well outlined. Like...unless ur laying on ur side and the tank is rolling over your helmet only lol these compression tests are useless because your neck would snap looooooooooooong before the weakest helmet fails
i was looking for this comment because everyone sayin old helmet better but this doesn’t show combat effectiveness at all lol
@@nonameneeded2943 is a spanish meme, u dont understand
Regardless of which helmet you're wearing, they aren't designed for being under that much pressure, they were made to deflect objects. Anything that falls on you weighing 1000 lbs is going to kill you, whether you're wearing a helmet or not.
I disagree, if a tank runs me over with one of these helmets there's *GOTTA* be a chance
@@proknifesharpening You were darn fortunate that day. You should have bought a lottery ticket and stayed home that day.
@@2BsYummySoles ur neck is breaking
@@2BsYummySoles ur talking about a tank here there ain’t no chance ur gonna survive
@@M0nmari8 It was sarcasm
Even T-800 terminators are worried about hydraulic presses.
Kevlar is meant to be lightweight and protect you from bullets and small projectiles. It makes sense it ressists much less pressure. The old helmet might be better at protecting against stunning objects since it's made of metal, but maybe not so much against bullets. Depends on the caliber and the distance. Plus, I'm sure it weights way more than the kevlar one. The police one is only to denfend against stunning objects like sticks and stuff rioters might throw at them. Therefore is made with lighter materials and it takes less pressure to crush it. All in all, more ressistant to pressure doesn't necessarily mean better.
I'd be more interested in seeing how they hold up to bullets and shrapnel....I don't think the helmets are designed to protect against getting slowly crushed.
thay are designed for impact and bullets, but it's funny to see under pressure
@@trunk2k it’s not designed to stop bullets actually, it’s designed to stop shrapnel.
@@21strose36 are shrapnel yet a kind of munition with many bullets?
@@Fakecourt this
John Kelly 🤣
Well not a surprise that newer helmets are not as tough as older versions, newer helmets wasn't designed to being crushed under pressure, however newer versions are great in shock absorption.
And lighter
You need the DLC for the stronger version of the Helmet nowdays.
So long as they stop shrapnel I didn't care how much weight it could take.
@@keuschkacey good news, the newer helmets also resist punctures better.
at least someone was wearing the right helmet
Next time our country gets invaded by gangs of hydraulic presses, we'll make sure to issue 1968 steel helmets.
WWII and other wars, soldiers liked to use their steel outer helmets as multi-purpose utility buckets. Boil water, cook rations, etc. my dad was a cook in the seabees and had some interesting WWII stories.
“Don’t try this at home” if I have a hydraulic press I WILL CRUSH WHAT EVER I FEEL LIKE
👀🤣
I like you.
You seem like a nice person.
@@janeyjames2606 🦵
Am pretty Sure your Home Blender knows no rest , you know😉
1:29 Work Helmet - 668kg
2:33 Old Army Helmet -10,212kg
4:00 Newer Army Helmet - 1,970kg
5:14 Police Helmet - 1,815kg
You're welcome, everyone that wants to skip to the good parts
Which part did you find bad?
@pudimacachi corrales you're right, corrected
Edit to add the final pressure value to each one and you're golden.
So the old ones are 5 times stronger than new ones?
Spoiler 😡
That's pretty much what I expected although the old steel one was better than I expected, but I think you'll find the Kevlar one will prevent bullets whereas the others won't do so well and this is their main purpose, not preventing crushing.
Ironworkers, steel beams/tall buildings, traditionally wear kevlar hardhats. A couple guys were lifting one end of a truss (Phillips Arena) with large porto power. It kicked out fell about 35' and hit me in the head. Large crease in the hardhat. I had a headache for a couple days. Years later I'm the field safety manager for a large erection company. Used the hardhat for some show and tell, they do work
Also important to note for combat effectiveness is the amount of pressure that's absorbed by the helmet and not just how durable the helmet is. Metal will be designed to crumple in some designed situations to allow for safety further in.
imagine if modern cars don't crumple
@@dewinmoonl wouldn’t be better since there’s car crashes
@@slumplxrd the shock would kill the person in the car
@@slumplxrd If the car doesn't crumple, YOU do.
@@Dia45 not all the time
Let's just be glad the hydraulic press hasn't been weaponized in actual combat.
yet
good idea ;)
Ferb,I know what we're going to do today
*intense screaming*
How would that even work tho? Just a guy carrying a cage with a hydraulic press on top of it, kidnapping enemy soldiers and putting them in it?
IT would be interesting to compare these helmets against pressure heads of much smaller sizes (like below a centimeter).
Thanks for pulling the motorcycle helmet to the center again. You saved me from an uncomfortable feeling.
The data from this video reveals the actual strength of the forged metal helmet. It's deflective, bendable and dentable to a point which buffers the impact of projectiles yet strong as cast iron before shattering. Very impressive alloy material.
yeah impressive indeed
btw i know some of you guys hate self promoters, but if you're really interested to check my song called end of the day out, i'd be glad tho. thank you :)
The Kevlar helmet can stop a direct hit from a 44 magnum and I’ve seen them deflect ak rounds. The metal helmet will do neither of those.
@@thomasmonahan1675 yeah metal isn't made of fibres obviously its going to react differently, people are dumb asf
@@thomasmonahan1675 but can your brain withstand the concussion? Steel helmets weren’t designed to stop bullets, they were to stop troops being taken out by shrapnel and debris, the minor hits that would incapacitate a man with a bare head.
@@python27au helmets distribute a conencrated force on a wide area so yes it will definetely protect you from concussion. Youd have to be hitting someone incredibly almost impossibly hard to give them a concussion with a helmet on i believe
Sergant: ,,With this helmet you can get ride over by tank.”
Soldier: ,,Will I survive?”
Sergant: ,,No, but your helmet will.”
hhhhh i liked your discussion more better than others
well hang on if the helmet doesnt start folding wouldntr he survive as well if it only came in contact with his helmet
)))))))))))))))
@@crownedits3999 yeah lets press 20 tons on our head totally gonna get saved by a steel helmet
@@damenofficiall for a tank to roll over you I'm sure you would be lay down... just saying
A shame to ruin that old helmet.
Yes it’s a artifact
crazy the markings in the helmets and on the hammerhead are mirrored
im glad everyone understands the kevlar is just as affective and more lightweight. it actually may even deflect bullets more efficiently and doesnt dent like the old one does.
@@slip2172 is?
@@shaunliver399 in short, forget it, I wish you good luck
It seems less effective if you compare weapons of 1968 and 2008 there's a lot of difference that goes (weapons are more advance now). But as someone mentioned the helmets are not made to handle that much weight rather designed to prevent the damage, so you seems to right about effective bullets deflection
@@vaibhavsharma4944 I fully expected that if the old one "won" there would be a million people screaming in the comments how it was better. Glad that didn't happen and people are using common sense and logic.
@@vaibhavsharma4944 If you're talking about small arms technology then you'd be wrong. The United States still uses the same cartridges that it did in 1968. While there have been iterative advancements on small arms it's not that far of a developmental leap from 50 years ago. A well designed Steel Helmet would perform just as effective at stopping handgun rounds as a Kevlar Helmet. Although Kevlar is lighter and doesn't dent. Body armor has developed faster than small arms.
There are many challenges bringing a hydraulic press to the battle field.
Even more challenging to persuade enemy troops to stick their heads into the machine for a nice compression test.
LOL😂
Never😂
but if make a pretty please face and keep a nice smile they may accept ur offer 😊😊
Test? It would be war!
It's not impossible tho... All you have to do is use the magic word
Old but gold!
Now I know what helmet to wear when riding a bike
People: The enemy won't be using a hydraulic press!
Any Spy Villian: *strokes chin and grins*
did you expect me to talk?
no, mr. bond! i expected you to dieeeeeee!
Imagine you can't move and your head is getting crushed slowly
@@horiskychild6189 😭 but I don't want to imagine such reality.
@@horiskychild6189 "any last words?"
@@atashi_ idk why yt keep deleting this but it will be check my pfp and desaturate that red button 🤣
"Don't repeat at home"
Yeah, because we all own a hydraulic press..
What? You don't have your own hydraulic press?
😂😂😂😂😅😅😅😅
and a military helmet lmao
@@29brendus Not everyone can afford to buy one... it's easy to say that when you have one or when you are rich... unfortunately, if you knew what the world was hiding... Anyway, it's not interesting
@@Steamy_Sir u didn't know it was a joke lol?
Well, I guess the main lesson that I've learned from this video is that: "The past is unbreakable"
Hey! What model is the 2008 kevlar helmet? Is it western design? It doesn't look like PASGT, MICH or ACH
"Don't try at home"
Ah yes, let me just pick up modern army helmet that i have lying around so i can crush it using my personal hydraulic press.
Relatable
And I wasn't invited smh
😂😂😂 I was looking for this comment.
Just use some skavenslaves instead. I have found them to be a suitable substitute for many things.
Interesting test but totally beside the point: Each helmet is designed for a different purpose and its resistance to compression proves not how well it has been built to achieve its intended purpose.
Thanks captain
@@C54rlo why make fun ?
He is right.
It's obvious that modern helmet is way more comfortable and have other additional support and purpose too but the old one with less technology and yet so strong as compare to new ones that comes out from hi-tech factory. That itself is a shame. Just my opinion 😅
@@Tholin-tm7psthe new "plasticy" helmets are designed to absorb as much impact as possible instead of your head to keep you alive.
@@Tholin-tm7ps keep in mind they normally would have kevlar around the helmet, the purpose for the helmet is to make sure that it absorbs impact and also prevent bullets from fully penetrating
So, the 1968 helmet can avoid getting headshot?
ah yes for the very common event where you have your head crushed slowly with a hydraulic press
Steel seemed to have been the best choice at the time, taking into account that the army was only thinking about blunt force at the time and not all the scientific implications of aerodynamics a bullet or high speed projectiles have, like shrapnel, and that Kevlar was a lot better for that, since it has many layers that the projectile has to go through, and that steel has only one, but they didn't realize that until the '70s. This is why the steel helmet performed better on this test.
Ñ
@@theisFandy the main purpose of the steel helmet was to protect you from falling debris from artillery while in a trench, against direct fire you would strap on the additional M16 Stirnpanzer plate
@@TrueFork true. But another purpose was to reduce the death from bullets. Yes, the helmet could help you to survive even shot (from specific angle). There was interesting story from I ww. I believe British army considered to come back to the leather hats or whatever they been called as there was more injuries than before. But they didn't took into consideration that more injured was equall to less dead. Because of that they stayed and steel became the standard in the next wirld war. Why there was no cevlar helmets? Fkn technology gap. Simple.
You are wrong. The aerodynamic were very well known even in 20s. The problem was the lack of technology. That's why there was no cevlar/bulletproof jackets among the masses of soldiers during II WORLD war. There was no mass production cost effective technology. The aerodynamics of bullets and the rest was extremely well known, especially when tanks were improved in the 30s. The steel helmets were the only solution as we're relatively cost effective and possible to mass production. At certain angle the bullet would ricochet from the helmet possibly leaving you just with light wound.
@@theisFandy El gringo te cuenta que los cascos de esos años eran toscos y no pensados con los conocimientos físicos actuales de aerodinámica, transferencia de energía y todas esas weas, por lo que los cascos eran ultra pesados y no necesariamente más efectivos que los modernos.
"Those Krauts would booby trap the roads with those incredibly slow hydraulic presses. You heard a noise and then maybe 2 minutes later your leg was suddenly caught" - My Grandfather, Sgt, First Army under Omar Bradley
Lmao this was a good chuckle
Must be PTSD because I believe that a Vietnam helmet....thats why it doesn't make sense, its much easier to hide a hydraulic press booby trap in the jungle than in the battlefields of WW2.
@@Necrotic99 camoflague.
Our modern troops are going to be in real trouble when they find themselves facing an enemy armed with hydraulic presses.
Yes a steel helmut will dent but it can be hammered back into shape with little loss of strength! I think a helmut designed with both an outer layer of steel and an inner layer of kevlar with a one-inch gap between would be more effective at stopping bullets as the steel would help blunt and slow down the round, the gap would allow for sideway dispersion of energy and the kevlar would act as a shrapnel shield. Perhaps a similar honey-combed version with rubber balls evenly spaced in the gap would also cut down on the transferred energy to the head. I think that body armor with a locking ring for supporting the outer steel shell to place the weight on the shoulders instead of the neck and the kevlar shell would be directly attached to the head giving greater bullet resistance with less weight on the neck. I believe this would be superior protection especially for the neck. In low threat areas the outer shell could be left off for comfort! Other improvements are possible! Also, helmets are used for other things such as a (steel pot anyway) a vessel to heat water in, a improvised digging tool, a not-too-comfortable seat. etc.
Intro: "Don't try this at home!"
Me with my brand new hydraulic press: :(
who dont want an hydraulic not far from couch in his hall?
Note to self: when wearing hard hat at work, avoid hydraulic press.
👍🏾
@@l4ffingdogg233 th-cam.com/video/YcwLzjo9mtQ/w-d-xo.html está buenaza 👌🏻
Not to self: wear what ever the hydraulic press head is made of for a helmet instead.
Note to self: sex with blow-up doll is not as good as advertised
I would prefer having one
back in my day.... was the greatest days!.... and WW1+2
I know it doesnt mean anything as this isnt what the helmets are designed for, but it's still really interesting to see how they deform and how much pressure it takes to do that!
“Don’t try this at home”
Damn and I just bought a gigantic hydraulic metal crusher to try this at home…
I know right
Yeah bro this is f*ck'd up
😂
I even time travelled to get the helmet
me who is in a hotel:
:)
The helmets aren't designed to protect your head from being driven over by a tank. Their ability to protect against shrapnel or glancing bullets isn't going to be measured by a press. From what I've heard the biggest drawback of the kevlar helmet is you can't use it to cook soup in your foxhole.
mmm dandruff soup 🤤
and thats why mes kit is standard equipment on one soldier...
@DON'T CLICK THIS VIDEO spammer
@DON'T CLICK THIS VIDEO Shut the hell up!
@DON'T CLICK THIS VIDEO Don’t worry! I won’t!
Hydraulic presses on the battlefield can be really dangerous 😆
Army helmets were introduced mostly to stop shrapnel wounds to the head, and falling debris like chunks of soil and stone raining down on troops during artillery fire.
Holy crap. It would take an entire genshin discord mod to break these. Never knew they were this durable 🤯
ew genshin
I dont think one mod is enough, we might need the whole mod team
@@resudog858 nah i think half of one mod should be fine
I don't think that's enough, maybe a MLP role play discord mod
Either that or your mom eheh gottem
The "worker helmet" is funny, because hard hats are meant to redirect damage. That's why they fall off your head so easily. If they just stopped falling objects dead, the force would go to the wearer's necks.
that is actually something I didn’t know and some interesting thing I got to learn today ! Well thanks!!
Not true. If something heavy were to hit your head and your hard hat was on tight, your head would be pushed and the object would land on your shoulders or barely miss you. While yes they redirect damage, they aren’t made to fall off. That’s why good quality hard hats are adjustable to fit tightly on your head. They also protect your head from hitting things yourself, like a low beam or ceiling and stop projectiles like blades or fragments. For example, lay a hard hat down and try to hit it with a hammer. The hat will just keep moving, like your head would if you had the hard had on tight, as you should
Yeah this is quite possibly the dumbest thing I've ever read
@@MrSpecOps Don't be so harsh. That's also the reason modern car airbags have a flight mode. When you crash they fly away to better protect you from the bus you plowed into by 'redirecting' the crash from them to your shoulders and face that are now unprotected
Also the reason why boxers 'protect' their vulnerable gluteus by taking punches to the much sturdier face
@@snakevenom4954 I mean, you're right, they aren't made to fall off super easily, but they also don't strap under your chin. They aren't meant to *never* fall off.
what's the compression test limit for neck vertebrae?
Well, this test confirms that we are not going to Jupiter any time soon.
Though the Kevlar would appear to give you less protection, it's actually better protection as it will dampen the blow you received. While the steel one will be far better at transferring the energy to the wearer.
Also, I suspect the weight they hold is very different, making for a striking difference in comfort after prolonged wear. Which might not mean much, but when you're a soldier that has to wear it all day for days at a time, it's all the difference it takes for your own body to resist longer in harsh conditions.
It’s like with old vs. new cars. Old steel carosseries will shine like a star after a crash while new cars will be crumpled up to high hell, but what we forget that inside the shiny steel box _you’d_ be crumpled up to high hell.
When being attacked by a hydraulic press, does dampening the blow matter at all? :P
Vs sudden impacts you are entirely right.
I will absorb the bullets energy and use it as my weapon
I'd also rather have kevlar peices than bent steel in my skull when getting hit.
That worker's helmet really put up more fight than I would expect. Definitely see them in a different perspective.
Agreed
Don't. A single drop from 4-5 feet renders them useless. They're meant to handle one impact and that's it. Impact force is completely different than compression force.
Tanks tracks.
Workers helmet is designed to accept heavy blows from a blunt object soldier is for a bullet
Absolutely, same here
Now, if the machines show up, we know what kind of helmet to use when they start using hydrolic presses against us.
step helmet im stuck
It's clear that the kevlar soldier helmet is designed to absorb impact energy by deformation.
The steel helmet took 10 tonnes, and that's far more than any neck or skull can take, and only the harness inside that helmet absorbs energy from an impact, while with the newer helmet the harness and the shell both absorb energy.
The only thing that is clear on this test is that vs a hydrolic press the WW2 helm is the winner . 😀
@@elguapo221
Second World War, in 1968?
nah, it's because of the decline of testosterone and sperm count modern men cannot use something so resistant and manly.
steel may took 10 tonnes with all that massive surface, but bullet only needs to make a small hole on small surface area to get the job done.
Steel helmets were basically second scull if it comes to firearms - just a decoration, morale boost. Protected only from farm weapons and really weak shrapnels
@@spicydiarrhea5662 They were hardly just a decoration/morale booster, they were designed to protect against shrapnel mainly from artillery and grenades, and they did that well. Most steel helmets are also strong enough to stop things like pistol rounds, but neither old nor new helmets really help against rifle rounds.
"Dont try at home"
We dont have these helmets and hydraulic press to try😂😂😂
We?? Speak for yourself 56 percent of american have helmets and hydraulic press
But what if he isnt a american.
😂 sahi kaha
Yall right the name should on been a dead giveaway. I searched that 73 percent of indians (non American) have helmets and hydo presses in their bed room for kink purposes
@@milkweed098 come in India Birooo👆💯🤪🙃
As a professor with a phd in hydrolic pressuralizationizing, I can validate this information
the enemy has a hydraulic press; break out the medieval armour
Kevlar is meant to be more for shock absorption, like the vest it's meant to divert kinetic energy from a bullet to be at a non lethal speed. Meanwhile a steel helmet is not shock absorbing, but because it is solid steel it will deflect any kind of projectile, however the shock and the kinetic energy will remain, so you can possibly have a concussion but at least you won't have a hole in your head.
Was gonna comment something similar but you beat me to it
Excellent point.
I don't know about the steel helmet defecting any kind of projectile 🤔 a rock maybe lol
Didn't steel helmets make death more likely as the bullet would go through one layer, stay inside and bounce around rather than pass all the way through?
@@danellboy5757 Depends on the range and bullet. I saw a WW2 training video where they demonstrated the effects of different calibers at different ranges on a German helmet. At a long enough range the helment would stop a pistol or carbine round, but nobody would choose those at long range.
but i hate concussions
Fun fact: we all knew this was an impractical test yet we wanted to see the results :)
th-cam.com/video/GsCjarm8LAM/w-d-xo.html
Wajar karena yang lama itu rata bawahnya, dalam ilmu membangun gedung ada perhitungan untuk meratakan beban supaya tidak runtuh seperti helm diatas bawahnya lebih bundar jadi tekanannya rata agak susah hancur.
I'm going with the 68 helment thank you very much.
The enemy will hit with a bullet or hydraulic press.
Underrated comment
This is a channel with hudraulic press, not hydraulic shooter or any shooter '-'
@@Hanzoi5 take a joke
Just had the image of a guy running over no man's land in ww1 with a hydraulic press in his arms then just yeeting the entire thing into the enemy trench
Ahahahahaahhahahahahhhaha
1:58 Worker hardhat 668 kgs
3:04 1968 Stell helmet 10,212 kgs
4:34 2008 Kevlar Helmet 1970 kgs
6:25 Biker Helmet 1815 kgs
Edit: 6:25 is Police Helmet*
They just don't care to make them like that anymore
@@paradyne1T101 no it’s because they made old helmets to not break at all but the newer ones are lighter and are better at their job deflecting bullets
@@krishnakode3894
No, because when you look at the other uploads like the old style steel hammer vs modern, old style concrete vs modern..etc it's painfully obvious that modern day comes up lacking in strength, quality, and durability which is a reflection on today's "make it cheap but charge a fortune for it" practice that is the blueprint of today's corporations
..I would trust you explanation about the modern helmets being better at deflecting bullets had he actually fired ammunitions at them as a proof test
Thank you
Thanks
On range we fired several 7,62x51 out of g3 battle rifles on areound 100M on a steel helmet using standard NATO ammunition.
All hits went through like a hot knife through butter. Especially one round that only hit the most outer edge of the steel helmet, made a scorch mark for over a inch (2,5cm), denting the steel inward, then entered the helmet at nearly no angle to the steel, and then also changed course inside the helmet afterwards.
Never tried this with kevlar helmets though, but a steel helmet isn´t any good for more than protecting from debris flying around your head.
Ok where do I get a 1968 helmet from? I want one of those.
Time flies.
Not long ago enemies used guns
Now they use hydraulic press
War never changes my ass
hahahahaha so quirky
Строительная каска идеально создана для своих целей, я испытал это на своей голове, когда 6-и метровая стойка хомутовых лесов, не просто упала мне на голову, а как будто кто мечом нею размахнулся. Думал перерубит вдоль на две части. Ляснуло так, что наверно вся стройка услышала. Но каска с честью сдержала удар.
Старая армейская, для своего времени и своей войны, была нормальной,
Современная каска, создана для своих задач, в современных войнах.
Полицейский шлем не создан против пуль, если это не сфера.
Этот шлем гасит удары как и строительная каска, но более улучшенный пластик, амортизационный улучшенный ременный подшлемник и сплошная круговая защита головы. Всё что нужно для разгона демонстрантов.
Так что ШЛЕМЫ ВСЯКИЕ НУЖНЫ, ШЛЕМЫ ВСЯКИЕ ВАЖНЫ.
Я думаю, что цель этого ролика не что либо доказать, нам. А просто показать, что каски и шлемы придуманы не просто так.
Hii IM from Indonesia
@@gataumales5465 Hi im from mexico
Hi im from brazil
I am glad to hear that you were wearing your helmet for that incident! That would not have ended well without one 😬😬
"The construction helmet is ideally created for my purposes, I experienced it on my head, when a 6-meter rack of clamping scaffolding did not just fall on my head, but as if someone swung it with a sword. I thought I would cut it lengthwise into two parts. It cleared so that the whole construction site probably heard. But the helmet withstood the blow with honor.
The old army, for its time and its war, was normal,
A modern helmet designed for its tasks in modern wars.
A police helmet is not built to resist bullets unless it is a sphere.
This helmet absorbs shocks like a construction helmet, but with improved plastic, improved shock absorption belt liner and all-round head protection. Everything you need to disperse the demonstrators.
So HELMETS ARE EVERYTHING, HELMETS ARE ANY IMPORTANT.
I think that the purpose of this video is not to prove anything to us. And just to show that helmets and helmets were invented for a reason."
Translated.
Primary function of the army helmets is to stop bullets. Kevlar does that well.
Even when the breaking point is much higher at the steel helmet, i consider the kelvar one as the better protection against real threats because of the Absorption features and layered build.
Привет американец
No shit
@@slip2172 оо,привет
@@wentytv5147 привет пупсик
nah it's trash lmao
Ww2 helemets were mostly against low impact fragments, low speed bullets, and basic "don't hit your head on stuff". They were cheap, easy and fast to produce in big quantities and we're more useful than not. They would deflect bullets and fragments but if pierced (if that surface was broken) you would be injured or dead.
Modern ones can deflect but are able to absorb the impact, they would contain the bullet or fragments and some of the kinetic energy, although you would feel like getting hit in a head by Mike Tyson at least your would live. Biggest difference would be at around 90deges of impact(less likely to deflect)
th-cam.com/video/mFeHD77j458/w-d-xo.html
Helmet 1968 And the second world war ended in 1945.
It's kinda like classic cars and modern cars. Classic cars had big solid steel frames and bumpers, that at low speeds, you'd deflect most things, but high speed crashes are lethal. Modern cars have plastic bumpers, built to crumple and absorb kinetic energy.
Don't know why they even bothered with helmets for low speed bullets. Too lazy to dodge?
@@brendankelly2653 does modern cars hace less chances of death?
Old is gold...
"Do not try this at home" is a great warning because casually most people have an hidraulic press at their homes.
yep, i have a lot of helmets too
@@unfamousk4y what the? for what u keeping that in ur house
he is sarcastic
@@marloplayztsbthespaceboy1807 Really????? No way, you're kidding!!!!!!!!
LOL I did have a 100 ton hydraulic press at my parents for splitting stone!
imagine fighting for your country but years later your helmet was crushed with a hydraulic press by some random dude on a website
no no hes got a point
That 1968 Helmet's manufacturing company should be assigned for making Submersibles for Ocean gate.
Ideally you would have a kevlar-steel two piece helmet?
I'd like to see how the helmets hold up to different caliber rounds, the hydraulic 'squash' was fun to watch but no one runs into a hulk smash wearing them! 🤣
the hydrolic press only proves the kevlar it is better since instead of pulling appart and ripping under high presure it crumpled and stayed intact meaning there is a good chance that instead of ripping appart after getting hit by a bullet or letting one through it would rather catch it and transfer all of the kenetic energy to the helmet
@@uncool9731 Well and in a war everybody gets hit by only one bullet. Great, then why are still some dying? After this, the second one is "free to go", so I guess, don't even start one, but humanity will never get smarter.
@@andreagruber5813 I have no idea what you’re trying to say
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@@YadavYadav-wy9io I agree
This reminds me of a semi-related fun fact. I wanna say it was the British army, but it was found that shortly after switching from leather helmets to metal ones, the number and rate of head injuries from combat dramatically increased. It seems counterintuitive, but this was actually a good thing since those with leather helmets rarely suffered head injuries as fatalities were not categorized as injuries.
That would be the german army. Their Pickelhaube (spiked helm) was made of leather.
@@python27au Nice. Another fun fact!
Survivorship bias.
G th-cam.com/video/BaumAOmcrX0/w-d-xo.html
Fun fact: roller blade wrist guards have a plastic insert that stops the wrist from bending too much during a FOOSH (falling on outstretched hand) injury - the most common fall for beginners. When they first started making the wrist guards, people would complain that the plastic insert broke when they fell over. A few companies switched to metal inserts. Then the companies found that people's wrists were breaking because the metal wouldn't break and absorb any of the force. So they went back to plastic.
It's cool to know that soldiers back in the day could carry 10 000 kg on their heads
Just makes me more impressed by kevlar honestly. Amazing material at what it does
0:05
*Kevlar army helmet 2008*
0:20
*Steel Army Helmet 1968*
1:28
*Helmet for workers* (Hydraulic press experiment)
2:33
*1968 Steel helmet* (Hydraulic press)
3:57
*2008 Kevlar* (hydraulic Press)
5:06
*Police helmet* (Hydraulic press)
If I made any error with timestamps, do tell me.
th-cam.com/video/GsCjarm8LAM/w-d-xo.html
Here before this gets many likes
Nope
Thx
your all good
This is surprisingly satisfying.
Agreed
First time ?
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Now watch it backwards…
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Test a skull from the 60's and one from 2000's.
Im curious
good thing most enemies don't run around with hydraulic presses. shoot bullets at them and see which is better
The point of the helmet is to protect from impact from shrapnel not a direct strike from a bullet. While the latter is often discussed, the various defense departments around the world know that one cannot be protected from a direct bullet impact. One reason to move away from steel helmets is that if round makes it through upon striking, it will bounce off the opposite wall doing damage as it travels. Therefore, an indirect shot becomes lethal rather than merely causing a wound. Kevlar is light weight, provides modest protection, and glancing shots that penetrate get lodged in a opposite wall...no additional tissue damage. The cost is that more forceful shrapnel impacts can cause the helmet to fail...crack and fracture. Metal helmets would only have dented. Though some dents can penetrate and collapse the skull.
War sucks.
And that the old steel helmet would prevent bullet penetration, but not stop the brain hitting the skill. Causing a concussion, the same with big dents. Too many variables, it's not always about which is one stronger.
@@draugnaustaunikunhymnphoo6978 Old steel helmets (and new helmets for that matter) only prevented glancing shot penetration and shrapnel from any explosive source be it rounds or shells. Because most weapons fire occurs within 100 yards, a shot from any standard issue rifle will penetrate a steel helmet...or any helmet for that matter.
There are many sources which will confirm that for those without military training.
"Round penetration characteristics military helmets" is a good search criteria.
I don't think the Kevlar's deformation properties under more forceful impacts are actually a "cost" at all, I think it's intentional. Sure, a metal helmet wont deform as much, but that just means more of the energy of the impact is transfered to the wears head, meaning (even assuming no penetration) worse concussion etc. With a kevlar helmet that deformation allows it to absorb more of that energy and redirect it away from your head, the energy is being used to deform the helmet, so you stand a better chance of not having concussion, or at least not as severely.
With regard to the concern about bouncing off the opposing helmet wall … why not make a steel helmet lined with like 3/4” silicone gell. so that would reduce chance of penetration but also reduce the bounce back
Cause solid silicone is more pricey
If anyone wanted to know, the reason soldiers stopped using steel was because it was hard to obtain and it was heavy whilst Kevlar is cheap and decently strong. That steel helmet probably weighed a good 5-10 pounds and that’s sitting on your head while the Kevlar is probably like 2 or 3 pounds.
Exactly; mobility is a big factor. When you consider also that-from what I've heard-Kevlar is better against bullets anyway, there's not a great case for steel helmets today. As others have said, if the steel deforms too much under projectile impact, you'll die anyway even if it doesn't puncture. The compression strength is only useful in very specific situations where the force is 100% on the sides of the helmet, and not travelling through your body/neck. The wrong angle, and you'll die even if the helmet says intact.
Yeah, this test is pretty meaningless overall. Military helmets are meant for stopping and distributing instant pinpoint impacts, not undergoing sustained pressure. It's still satisfying to watch, though.
I'm not exactly sure that steel was hard to obtain, even back then they still did have some good machinery, so steel wasn't so poopy, I think.
Well yes that as well, but masin reason is kevlar is more effective than steel.
nah they werent that heavy they were like 1-3 pounds