DIY Composite Vehicle Armour (stops an AK-47) Part 2: Ballistic Test

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PrepTech

PrepTech

8 жыл бұрын

Check out the first part: • DIY Working Composite ...
Check out the third part: • DIY Vehicle Armour (st...
My Patreon: www.patreon.com/PrepTech?ty=h
Music by Johari.
I got written permission from the band to use their music in my videos.
© 2016 Szilágyi Szabolcs

Пікірлер: 84
@CoherentZebra
@CoherentZebra 8 жыл бұрын
Excellent work. Nice to see someone is trying to make military grade protection instead of destruction.
@PrepTech
@PrepTech 8 жыл бұрын
+Kosta Milovanovic Thank you.
@gvardiecky9507
@gvardiecky9507 4 жыл бұрын
Idiot.
@oozly9291
@oozly9291 2 жыл бұрын
@@gvardiecky9507 how?
@josephabboud1151
@josephabboud1151 4 жыл бұрын
I also made a plate out of those small ceramic tiles, construction adhesive, resin, multiple layers of sheet steel with resin between them, which was all wrapped by fiberglass sheets with construction adhesive and resin. It weighed 4 kilos and cost $30. I think your video will help me make a better plate, thank you!
@nateb4543
@nateb4543 4 жыл бұрын
Are you making vids?
@rooster002
@rooster002 6 жыл бұрын
Very watchable. Excellent work, young man.
@InvierteDesdeCero
@InvierteDesdeCero 8 жыл бұрын
Nice work my friend.
@geraldgriffin8220
@geraldgriffin8220 7 жыл бұрын
Perhaps a test with the .223 might be useful also. A great video of a great product with some interesting commercial applications ..Will look forward to seeing more of your work. Thanks.
@billjonesjr8718
@billjonesjr8718 3 жыл бұрын
If he used A hardox steel / AR500 plate, it would work much better. Plow or bulldozer blade steel. Good work and explanation on his part.
@angelo_giachetti
@angelo_giachetti Жыл бұрын
Testing AR500 against hardened automotive steel like the frame of a truck would be interesting.
@Hugosellstedt
@Hugosellstedt 7 жыл бұрын
awesome work man thanks! much inspiration
@pottersdog
@pottersdog Жыл бұрын
Aluminium oxide is extremely good for blunting even hard steels, if you made a sheet of aluminium oxide and put it either in front of or just behind the tiles the round will have deformed and gained slight imperfections before even hitting the fiberglass, more surface area means a slower progression through the layers and faster rounds may be effected more than slower ones. Angled armour works really well too, they use panels angled at specific degrees on tanks to double or triple the thickness of material interacted with.
@casimirkulikowski5949
@casimirkulikowski5949 4 жыл бұрын
Super cool video
@walenfesata
@walenfesata 5 жыл бұрын
Those dragunov is awesome
@becausevideos8692
@becausevideos8692 8 жыл бұрын
Excited to see more. Keep it up
@PrepTech
@PrepTech 8 жыл бұрын
+BecauseVideos Thanks, I'll definitely produce more content, but not as frequently as other, bigger channels. Sadly, I have priorities, and studying is on the first place. I'll try to upload a new video every 3-4 weeks, then as the channel grows, so will the frequency of the uploads. Without degrading the quality, of course :)
@becausevideos8692
@becausevideos8692 8 жыл бұрын
+PrepTech Sounds good. It's not often channels start out with such quality videos from the start. Certainly intrigued as to how these ballistics will be improved. I see your channel growing, good luck.
@commission666
@commission666 5 ай бұрын
Good job fam💯💯💯
@paulristow3454
@paulristow3454 Жыл бұрын
Something like a high-powered rifle round would very likely be fired from a greater distance than pistol range, which may diminish the bullet energy enough to make a difference in the penetration. Thanks for these very detailed and informative videos!
@ReformedBigfoot
@ReformedBigfoot Жыл бұрын
2:29 good thing the safety glasses are protecting the top of his head!! You see debris fly back past him. 😮
@paulwhitehead3002
@paulwhitehead3002 3 жыл бұрын
Would make good armored shutters for a home and with your pirce point set up it even makes economic sense
@Drzewacz888
@Drzewacz888 5 жыл бұрын
Nice video. I had the same ideas.
@jimmyolano929
@jimmyolano929 4 жыл бұрын
1:26 ¡HEAVY MAN!
@firstgoinpostal
@firstgoinpostal 4 жыл бұрын
Cut sections of leaf springs as a layer should add enough density to stop the 7.62×54R.
@huynhat50
@huynhat50 7 жыл бұрын
badass man, badassssss
@PrepTech
@PrepTech 7 жыл бұрын
Glad you liked it!
@CaptainFalc0nPunch
@CaptainFalc0nPunch 3 жыл бұрын
Look into installing a sheet of UHMWPE plastic which is cheap on the top layer instead of steel. It will protect against fragmentation and drastically slows rifle round and doesn't shatter like other plastics not to mention is cheap.
@Drikkerbadevand
@Drikkerbadevand Жыл бұрын
wouldn't it make more sense to have the ceramic on the outside? then uhmwpe, then fiberglass?
@Mack_Dingo
@Mack_Dingo 3 жыл бұрын
you think the plate dropping after those few shots affected the integrity?
@brianmfieldwick3494
@brianmfieldwick3494 5 жыл бұрын
Try a horse rubber stall mat at the back. Will catch the spall and cushion the shock
@richardrose9943
@richardrose9943 6 жыл бұрын
Use vartum infusion process withe carbon fiber 30 layers will end up about an inch thick and stop a 50 cal
@alparkopp
@alparkopp 3 жыл бұрын
A keramia ele is kell egy uvegszal reteg.Kevlar vászon lenne idealis. A lövedék elveszitené enerigiaja egy reszet , formáját Gyere Klevelandba , itt ki probaljuk
@aaronjamesparaan1949
@aaronjamesparaan1949 7 жыл бұрын
nice idea 💡..
@PrepTech
@PrepTech 7 жыл бұрын
Thanks.
@MDallDayPrepper
@MDallDayPrepper 3 жыл бұрын
How much does that plate weigh? My apologies for not hearing you if you mentioned it during the video.
@angelo_giachetti
@angelo_giachetti Жыл бұрын
Pistol bullets arent designed to penetrate especialy the 45 auto. The best old pistol cal. round for penetration is the necked down 7.62x25. Nowdays there are several pistol rounds designed for penetration ie the 5.7.
@stoontownparts
@stoontownparts 7 жыл бұрын
have you considered hi carbon steel rail from old train track if you can smelt or even < boiler plate > if you have to re work you must re harden anneal the best you can ( take it too bright red and cool as slow as possible must be cool a day after cooling cool in oven on full drop temp slow over at least 12 hours) then once cool for 24 hours heat it to blue and then quench in water or if you have fire man protection oil. plate will be far far harder than any stain less and more durable stainless is more brittle but less hard . would like to see how 1.5 or 2inch of fiberglass would work old fiberglass 40+ foot yacht hull mabie and dont be sad you have to harden steel yourself we cant have the guns in CANADA not a ak 47 anyway good hunting rifles . its easyer to make hard steel than good guns . awesome vid well done thank you
@nicholasp884
@nicholasp884 Жыл бұрын
You shouldn't have a metal layer in front of the ceramic. The bullet needs to run into the ceramic. It causes an extreme dampening of the bullet movement and catches it in a pocket of dust. The metal Infront of the ceramic adds the bullet in creating a cone shape and going right past the ceramic. I bet if you removed the front layer of metal it would of worked better. Iv seen two floor tiles with a thin veneer plywood and 16 gaude steel back survive many 5.56 green tip and one ak47 round before it was done working.
@johnbrowne3518
@johnbrowne3518 3 жыл бұрын
...Don't you have bungee cords ( Lengths of flexible cable with hooks on the ends) in Magyar-land? wrap one or two around the plate and the frame to hold it in place. Nem csoda, hogy a polákoknak meg kellett menteniük. ha ha.
@socrates_the_great6209
@socrates_the_great6209 5 жыл бұрын
Nice video. Good job! But hard to hear you talking when the guns are firing.
@TheTraveler2222
@TheTraveler2222 3 жыл бұрын
How much do each armour plate weight?
@vandyniyomkham5032
@vandyniyomkham5032 4 жыл бұрын
you gotta use carbide ceramic, or even alumina, the armor still looks good. those guns were shot at close range.
@guxsus13
@guxsus13 4 жыл бұрын
yes but the ´´point´´ of this project was to make it very affordable
@oozly9291
@oozly9291 2 жыл бұрын
@@guxsus13 it can even be more affordable using UHMWPE plastic instead of steel, using thicker ceramic plates to absorb more of the shock and using rubber in between the plates to absorb the impact and reduce spalling. Faster to make and possibly cheaper since fiberglass and getting good resin can be hard and pricey
@guxsus13
@guxsus13 2 жыл бұрын
@@oozly9291 yeah i agree with you there
@nebaicita
@nebaicita 5 ай бұрын
@@guxsus13 you can get carbide from rods use in electric soldering carbonsilica rods soldering
@AKAtheA
@AKAtheA 4 жыл бұрын
you probably already know this, but you should still be able to buy a functional surplus BRDM-2 (minus the main gun...) for the price of a cheaper new car...sides are 7mm, front 14mm of some better quality steel (it's not normal low carbon, as it's able to withstand soft steel core 7.62x39 at nearly point blank range). It's also amphibious (GL getting a civilian car like that :P) and has fairly good terrain mobility. Only downsides are the 7 tons of combat weight and the very thirsty gasoline V8 engine ;-) Much better then trying to make a normal car more resistant to small arms fire...
@c.w.miles-cowboycookstoryt1528
@c.w.miles-cowboycookstoryt1528 Жыл бұрын
In the case of civilization come to such warfare, ALL armored vehicles, especially surplus military vehicles would be instantly deemed illegal to own and you'd be a primary target
@brandonm1881
@brandonm1881 5 жыл бұрын
More ceramic would have stopped the 7.62 for sure, 3 layers of ceramic, and less layers of fiber glass cloth by half of the original thickness would have been fine
@dwwolf4636
@dwwolf4636 Жыл бұрын
Steel/ceramic/steel/fiber composite might be better. Glue ceramics in place with a semi flexible construction glue. Steel might need a primer coat. Containment and preventing flexing of the ceramics is key to getting the most performance out of them. I have seen examples where alumina ceramics embedded in cast aluminium were backed by 1mm stainless steel plates to increase stifness.
@N330AA
@N330AA 7 жыл бұрын
That's a Klobb!
@billjonesjr8718
@billjonesjr8718 3 жыл бұрын
Use a piece of bull dozerblade/loader bucket or snow plow blade, Hardox steel,,Very hard.
@billjonesjr8718
@billjonesjr8718 3 жыл бұрын
A good bypass of overly restrictive laws.
@teepee6314
@teepee6314 3 жыл бұрын
Yee!
@noahbranch1288
@noahbranch1288 5 жыл бұрын
The problem is buddy bad guys use steel core bullets which would cut through that like butter
@spookydascary934
@spookydascary934 3 жыл бұрын
what country are you in?
@craposnap
@craposnap 6 жыл бұрын
What country are you in? The dragunov is almost impossible to get here in the U.S. let alone a SVD.
@brightgarinson3099
@brightgarinson3099 6 жыл бұрын
Craposnap Hungary
@craposnap
@craposnap 6 жыл бұрын
thanks
@brightgarinson3099
@brightgarinson3099 6 жыл бұрын
Craposnap no problem.
@Punisher9419
@Punisher9419 8 жыл бұрын
Perhaps if you layer tin foil in-between the layers of fibreglass. Lots of layers.
@PrepTech
@PrepTech 8 жыл бұрын
+Kuddlesworth NA That wouldn't do much other than disarrange the composite structure. The resin must bond with the fiberglass and adding a layer of tin foil would prevent that.
@superpoluha1
@superpoluha1 8 жыл бұрын
+PrepTech perhaps aluminum powder with the resin?
@PrepTech
@PrepTech 8 жыл бұрын
+Tommy &quot;Johny&quot; Wiseau I was thinking on the same, but then I scrapped the idea. It would look good, but the resin does not bond chemically with the metal so it wouldn't be any stronger. But I have some epoxy left, I might test it.
@Punisher9419
@Punisher9419 8 жыл бұрын
+PrepTech I see. Perhaps finding thinner ceramic plates and then sandwiching them together. They might absorb more of the energy if there are layers of them.
@PrepTech
@PrepTech 8 жыл бұрын
Kuddlesworth NA The next, advanced panel will have multiple ceramic layers. Or even something stronger than ceramic :)
@blogobre
@blogobre 7 жыл бұрын
6mm steel with a hardness of 500 Brinell would stop 7.62x54mm easily. It will also throw out spall, so putting some rubber/fibreglass or similar in front is necessary. 2-3 porcelin tiles will also do it, though they'll shatter.
@PrepTech
@PrepTech 7 жыл бұрын
That is correct, but as I said I didn't have access to any of these special steel plates, so I turned to an alternative.
@rooster002
@rooster002 6 жыл бұрын
blogobre correct, but.....this is the Home Depot Hoplon.
@jimmyolano929
@jimmyolano929 4 жыл бұрын
0:32 Test environment
@BooDamnHoo
@BooDamnHoo 3 жыл бұрын
Instead of thicker steel to stop something like a dragunov, use multiple layers of ceramic. Go with thicker ceramic tile. Get the 8mm thick tile. I'd bet two layers of that with your fiberglass backer MIGHT stop dragunov.
@oozly9291
@oozly9291 2 жыл бұрын
You can learn a lot about composite amour and yeah ceramic is the way, Russian did that with their Cold War tanks and it was effective
@cityofjoy2576
@cityofjoy2576 4 жыл бұрын
This armor is sooooo thick ...... i can make almost anything 5 inches thick... to stop bullets..
@nadivvv
@nadivvv 4 жыл бұрын
What type of bullets? Can I know what it's made out of?
@astrogeo1174
@astrogeo1174 7 жыл бұрын
stop tallking
@strongestgamer2501
@strongestgamer2501 Жыл бұрын
Nobody asked
@pottersdog
@pottersdog Жыл бұрын
Aluminium oxide is extremely good for blunting even hard steels, if you made a sheet of aluminium oxide and put it either in front of or just behind the tiles the round will have deformed and gained slight imperfections before even hitting the fiberglass, more surface area means a slower progression through the layers and faster rounds may be effected more than slower ones. Angled armour works really well too, they use panels angled at specific degrees on tanks to double or triple the thickness of material interacted with.
@Drikkerbadevand
@Drikkerbadevand Жыл бұрын
also heard someone on another video saying you can increase the hardness by enriching the fiberglass resin with like 0.4% graphene
@pottersdog
@pottersdog Жыл бұрын
@Drikkerbadevand I'm not sure people have access to graphene easily without a commercial materials licence or without making it themselves. Plus that percentage is a strange one considering graphene is only strong in a single atom lattice sheet or layering those lattices extremely carefully hundreds or thousands of times with certain expensive adhesives that wont eat at it. Even though 0.4percent sounds low its actually allot of graphene considering it doesn't have much mass, is extremely thin etc and would be rather expensive. It is around 13-20 dollars for a single 10x10cm sheet and you'd need allot of sheets. Each sheet is around 35 microns thick and that's around 0.035mm thick, armour only works due to the material being layered and graphene armour would work the same way, thousands of layers just like kevlar so for a bare minimum you'd be paying 13,000 to protect 10cm of your body, realistically. Even if it's only a hundred or so layers needed it'd be bare minimum 1,300 per 10cm protected but with armour you tend to want to go thicker than the bare minimum since if it doesn't stop the object then it'll continue through whatever is behind it. Also as mentioned you'd need to price in the adhesive as armour usually works better when made into a composite of some sort and any specialist adhesive tends to be as expensive as it is hard to find since you need a chemical handling licence to even buy certain things in most places. It'll be interesting to see someone try it once the material is easier and cheaper to get ahold of. Borophene is easier to make on demand en masse as an alternative, more flexible and arguably stronger in some cases. The downside is it catalyses water to split it into oxygen or hydrogen so any adhesives you used couldn't have any moisture at all or you'd have bubbles, cracks or worse. Graphene is literally carbon so water, grease, salt etc, it wouldn't react well with any of those over time. I think kevlar mainly only reacts negatigely with radiation/sunlight noticably like nost fiberglass armours which makes it ideal for longer term applications.
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