but if you make it into a composite and place something hard like ceramic in front to break innitian impact and glue rubberized cloth on the back of the plate to stop any aluminium shrapnel you might get good armour against small caliber.
You need also some space between the hard ceramic plate and the metal plate behind it. This extra space helps in distributing the material so that it can expand over a larger area and this will help in protection. This technique is used in the space industry against small micro meteorites.
That 6082 plate has a Brinell hardness rating of only 90. 2024 Aluminum has a rating of 120, and 7075 plate is rated at 150. It'd be interesting to see if those plates gave the same ballistic performance.
There's also the 7068 Aluminum with rated Brinell Hardness of 190 and Tensile Strength of 710 (or so Tennalum claims) when heat treated. And there's the harder Al-7034. It's not just the hardness that counts but also the tensile strength. It plays a role when the metal is bent due to the force of the bullet. To demonstrate, while trying to reproduce Al-7068, I accidentally created a very brittle but very hard plate of it. The plate did not withstand a 9mm. Although it was hard, it broke into pieces like a ceramic. On the other hand, I made an almost half-an-inch thick plate of Al-7068, untempered, and it stopped .45 caliber ACP round like it was nothing. Not even a dent, just some circular scratch. But when the plate was shot by an M4AI rifle, it broke. Probably, it was stressed from all the .22 cal long rifle and 45ACP rounds fired to it repeatedly. I will now make a Al-7034 and temper it. Hopefully, it will work as an armor. It will help a lot of police. Pray for me, guys.
Hello I've linked your video in my video description to show how powerful my homemade gun is against 5mm thick aluminium body armor compared to your 9mm handgun. I see your 9mm penetrates better but my 16mm bullets create a bigger dent. I'm wondering why? I don't know physics. This video inspired me back in 2020 to make aluminium body armor. love your work
Do you think somewhere between 3/8-1/2 of an inch of aluminum (coming from a few pieces and just sandwhiching on top of each other) with pants taped around it will stop a .22, I mean those were the only materials I had without buying anything, just a little experiment
@@Drzewacz888 okay! Interessing then, especially when comparing the weight to strengh ratio with the titanium grade 5, you tested. It really makes Me think that a 20 mm thick alluminium like that could, while still remaining possible to Wear in a heavy vest, maybe stop some smaller rifle rounds
Nice gun, all steel, is it 9 mm CZ 75? Tokarev bullet jacket stripped like it should, steel core kept on goin'. All'n all, aluminium fared surprisingly well. Nine millimeter is defeated pretty easily from short barrels.
Hej Drzewacz888 a czy masz może w planach testowanie jakiś tworzyw sztucznych np płyt polietylenowych PE1000 albo poliwęglanu litego np płyty CD? bardzo by mnie to ciekawiło tylko niestety nie mam możliwości, żeby to sprawdzić.
You should really be using a chronograph to understand how fast the round is going. It doesn't matter what kind of gun shoots it - just how fast the bullet is going. The information you need to understand the power of the round is it's weight and speed. I would love to know that.
Manny DelaCruz I know that speed defeats armour. I said in this or other video that I will make a speed test of a bullet from guns I use for tests. give me few weeks and I will post the results. Also I will be shooting titanium plates soon.
You have to answer that question yourself. I can not advise you anything as i am not an expert. As you could see on video it can stop few types of ammunition but rally i would not rely on it. If it was SHTF scenario, i guess its better than nothing but if you can, get a proper AR500 plate. Also, answer one question, How much you value your life?
Drzewacz888 well i was thinking about using it as well as soft kevilar. So when i get hit it wont break my ribs. Typically ceramics or steal is used but i have neither.
Brown-Streak Studios so you want to use it under soft body armour kind of like a trauma plate to dissipate kinetic energy. But remember, soft body armour can behave differently with hard material behind it as it will have no space to deform and catch the bullet. If you use it in front of body armour, than you might get injured by bullet fragments. If you watched my titanium plate testing you can see what happens to my plate carrier. Using bare metal without spalling protection is risky. If it was me, I would use it under body armour but don't quote me on that. Maybe do some testing yourself, it cost a bit but it's fun and it will give you a lot of info if done correctly. Good luck.
1/8 its just over 3mm, 22 will not go thru but 9mm? maybe. there should be something with steel testing on YT. I'm trying to test light weight materials at the moment although i just ordered 2mm Tungsten plates for composite plate Tungstem/Aluminium and Tungsten/Titanium/Aluminium plate.
If money is no object, Titanium and Tungsten is a good composite plate. AR500 equivalent protection at half the weight and bulk. Aluminum and Kevlar / Spectra layered would make a good LVL 3A plate with puncture (knife) resistance. Just gotta watch that cost-complexity spiral.
You kinda just answered your own question, and proved my point. If Tungsten is 2.5x as dense as steel, then you'd only need a tungsten plate that was 1/2 the thickness to perform like steel. I'll just have to take your word on the DoD testing. It seems counter-intuitive that placing a denser material over a less dense one would have "no noticeable performance improvement". If you served, you'd know how often Uncle Sam gets stuff flat-out wrong.
*Titanium Armour* Firstly, titanium armours can be spaced apart to increase the effectiveness at stopping bullets. And spacing the titanium sheets apart creates a cushion that slows the bullet before the titanium is penetrated. For example, a titanium shield can have a thin 1.2mm sheet of titanium over the front of the main shield plate. This 1.2mm sheet can have spacer lugs welded to it. Furthermore, a bullets force will be reduced on impact with a space of 1 centimetre inbetween two titanium sheets. And a 1.2mm sheet of titanium in front of the main shield plate would do this. Lastly, this titanium spaced armour has actually been demonstrated and tested to be effective on the American demolition ranches. Next, spacing other metals apart would create a similar bullet stopping effect. And I imagine that spacing steel apart would be effective to create a cushion that would slow a bullet. In addition, aluminium would also increase in effectiveness spaced apart. Furthermore, I think because of the properties of aluminium spacing it would have limited benifits. However, you would still increase your bullet stopping power by spacing your aluminium apart. As a result, I think that all your metal and alloy armours should be spaced in some way and taking the time to do that is a good idea. Lastly, when you space your armours apart it is so effective that you can expect to stop a higher calibre bullet. And this is particularly useful on a shield. Next, I have discovered the most perfect size and weight bullet shield. After testing with shield weights 10 kilograms is sort of the maximum weight you want a shield to be. Therefore, the perfect size shield is 3mm thick titanium. It is a tower shield to pass through doorways and it is 100cm X 70cm. The total weight is 9.5 kilograms without a handle. In addition, 10kg shields are perfect weight for 160-200 kilogram people. It is a perfect weight because it starts as slightly too heavy to use as a shield and as you practice it eventually becomes light and practical. Lastly, remember that you will be wearing a bullet proof brigandine behind the tower shield. This makes a 3mm titanium shield a reasonable thickness. Table#1 Types of Shields ------------------ *Titanium backpack buckler* -40cm in diameter -4mm thick titanium -Weight 2.5kg including handle -If the 4mm of titanium is a high tensile strength and spaced correctly you will be able to stop 7.62 NATO and 50cal magnum rounds with this buckler. *Titanium Tower Shield* -100cm×70cm in Area -3mm thick titanium -Weight 10kg including handle -If the 3mm of titanium is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield. *Half a Titanium Tower Shield* -50cm×70cm in Area -3mm thick titanium -Weight 5kg including handle -If the 3mm of titanium is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield. *Aluminium Shield* -50cm×70cm in Area -10mm thick Aluminium -Weight 10kg including handle -The tensile strength of aluminium varies a lot between regular aluminium and the 7000 series of aluminium. And that means you can make this shield just as effective as titanium. *Steel Shield* -50cm×70cm in Area -3.5mm thick steel -Weight 10kg including handle -If the 3.5mm of steel is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield. Lastly, the perfect thickness for bullet proof brigandine plates is 3.0mm or 4mm titanium. And you just try and find the highest tensile strength titanium you can and just use that thickness. In addition, I have also decided that if you get a 1mm thick aluminium face size plate you can shape it in to a horror face and then bolt it to your titanium helmet. As a result, you can have a full set of bullet proof brigandine armour with a horror face helmet. That is going to be terrifying with swords and bowling ball cannons. Finally, if your metal tensile strength is high enough you will be able to deflect or even completely proof yourself against 7.62 NATO bullets. Table #2 Use of Formulas ---------------- s = tensile strength in pascals (Pa) F = force in newtons (N) A = cross-sectional area in (m²) m = bullet grain mass (kg) a = acceleration of bullet (m/s²) t = time of impact (seconds) v = velocity (m/s) F/s=A (using tensile stress formula) *(m(v/t=a)=F)/s=A* 9mm bullet Force = (m(v/t=a)=F) v/t=a (430m/s)/(0.0024s)=179,167m/s² ma=F (0.0075kg)(179,167)=1344N Aluminium tensile strength = 240MPa (Aluminium)= 240000000Pa F/s=A (1344N)/(240000000)=5.6e-6m² 5.6e-6m² = 0.0000056m2 = 0.056cm² = 5.6mm² Therefore, a 9mm bullet traveling at 430m/s requires 5.6mm² of 240MPa metal to block it. Reference: th-cam.com/video/QOkZzjQEx4M/w-d-xo.html th-cam.com/video/FTYGvL_e1ko/w-d-xo.html th-cam.com/video/urz8vhJpcIY/w-d-xo.html th-cam.com/video/pBKItHNe4qk/w-d-xo.html th-cam.com/video/6on8zQOuS-Q/w-d-xo.html th-cam.com/video/xLSBRGePh0U/w-d-xo.html th-cam.com/video/DwXzla2Ye24/w-d-xo.html
Let's shoot a Tokarev at it 5.5 g (85 gr) FMJ469 m/s (1,540 ft/s)605 J (446 ft⋅lbf) *(m(v/t=a)=F)/s=A* Tokarev bullet Force = (m(v/t=a)=F) v/t=a (469m/s)/(0.0024s)=195,416m/s² ma=F (0.00551kg)(195,416)=1,076N Aluminium tensile strength = 290MPa (aluminium)= 290000000Pa F/s=A (1,076N)/(290000000)=3.7-e6m² 3.7-e6m² = 0.0000037m2 = 0.037cm² = 3.7mm² Therefore, a 85 grain Tokarev bullet traveling at 469m/s requires 3.7mm² of 290MPa metal to block it.
Just from calculations... 1.35 g/cm^2 for 5mm(to stop 9mm) so just over 1kg for a normal sized(10x12in) plate. 2.7 g/cm^2 for 10mm(to fully stop 7.62 Tokarev(from pistol)) so just over 2kg for a 10x12in plate
but if you make it into a composite and place something hard like ceramic in front to break innitian impact and glue rubberized cloth on the back of the plate to stop any aluminium shrapnel you might get good armour against small caliber.
You need also some space between the hard ceramic plate and the metal plate behind it. This extra space helps in distributing the material so that it can expand over a larger area and this will help in protection. This technique is used in the space industry against small micro meteorites.
That 6082 plate has a Brinell hardness rating of only 90. 2024 Aluminum has a rating of 120, and 7075 plate is rated at 150. It'd be interesting to see if those plates gave the same ballistic performance.
There's also the 7068 Aluminum with rated Brinell Hardness of 190 and Tensile Strength of 710 (or so Tennalum claims) when heat treated. And there's the harder Al-7034.
It's not just the hardness that counts but also the tensile strength. It plays a role when the metal is bent due to the force of the bullet. To demonstrate, while trying to reproduce Al-7068, I accidentally created a very brittle but very hard plate of it. The plate did not withstand a 9mm. Although it was hard, it broke into pieces like a ceramic.
On the other hand, I made an almost half-an-inch thick plate of Al-7068, untempered, and it stopped .45 caliber ACP round like it was nothing. Not even a dent, just some circular scratch. But when the plate was shot by an M4AI rifle, it broke. Probably, it was stressed from all the .22 cal long rifle and 45ACP rounds fired to it repeatedly.
I will now make a Al-7034 and temper it. Hopefully, it will work as an armor. It will help a lot of police. Pray for me, guys.
I'mHungry yup
@@nochannel1000 what is the first gun name
@AMG BOYZ Would you send me a link when it is posted? I would very much like to see.
@AMG BOYZ That is, if you would be comfortable with sharing your defense knowledge and capabilities.
This guy is savior to amateur. With no gun contry and normal people(actually don't know about the steel and gun)
The plate moves you need to put a sandbag behind to simulate a body
Hello I've linked your video in my video description to show how powerful my homemade gun is against 5mm thick aluminium body armor compared to your 9mm handgun.
I see your 9mm penetrates better but my 16mm bullets create a bigger dent. I'm wondering why? I don't know physics.
This video inspired me back in 2020 to make aluminium body armor. love your work
Weird flex but ok
@@ThisFrogGuy It's just to show how powerful co2 guns can be. I didn't own a chronograph :(
lol XD @@ThisFrogGuy
Do you think somewhere between 3/8-1/2 of an inch of aluminum (coming from a few pieces and just sandwhiching on top of each other) with pants taped around it will stop a .22, I mean those were the only materials I had without buying anything, just a little experiment
was the alluminium tempered? heat treated? or in it's "0" condition?
it was normal aluminium, got it on ebay.
@@Drzewacz888 okay! Interessing then, especially when comparing the weight to strengh ratio with the titanium grade 5, you tested.
It really makes Me think that a 20 mm thick alluminium like that could, while still remaining possible to Wear in a heavy vest, maybe stop some smaller rifle rounds
It seems some kind of creepy sound proof torture chamber....
Nice test waiting for another 60xx aluminum plate 👍
Nice gun, all steel, is it 9 mm CZ 75? Tokarev bullet jacket stripped like it should, steel core kept on goin'. All'n all, aluminium fared surprisingly well. Nine millimeter is defeated pretty easily from short barrels.
Juha Antti-Poika it's CZ 75 Tactical Sport Orange
@@Drzewacz888 please tell me the first round gun name
@@TheBestHKGolden it's Ruger mk3 Competition
Hej Drzewacz888 a czy masz może w planach testowanie jakiś tworzyw sztucznych np płyt polietylenowych PE1000 albo poliwęglanu litego np płyty CD? bardzo by mnie to ciekawiło tylko niestety nie mam możliwości, żeby to sprawdzić.
Sorki ale nie, plastikow testowac nie bede.
Isn't much of the energy being used to move the plate off of the ladder? If the plate was solid mounted, would it be easier to penetrate?
My thoughts exactly. This is a very poor test of how aluminum would perform as armor.
You shout him, Jimmy! You shot him!
You should really be using a chronograph to understand how fast the round is going. It doesn't matter what kind of gun shoots it - just how fast the bullet is going. The information you need to understand the power of the round is it's weight and speed. I would love to know that.
Manny DelaCruz I know that speed defeats armour. I said in this or other video that I will make a speed test of a bullet from guns I use for tests. give me few weeks and I will post the results. Also I will be shooting titanium plates soon.
Drzewacz888 been a year wheres the video
How much did the 10 mm aluminum plate weigh?
30cmx30cm 10mm plate is 2.4kg
What caliber what that you shot at 6:26?
7.62×25 mm tokarev
Try 7075
what is the weight of those plates?
Victor Bellic not very heavy. only 10mm one was around 3kg i think. i did not check.
Hey,i want to know what gun u use when u shoot the 3mm
It's Ruger mk3 competition
Where do you live ? You sound British but own guns ?
big mike could be new zealand
What do you mean he sounds Czech
Maybe canada
is TT ammo has steel core????
Lead core
Should i use aluminum plates in my plate carrier?
You have to answer that question yourself. I can not advise you anything as i am not an expert.
As you could see on video it can stop few types of ammunition but rally i would not rely on it.
If it was SHTF scenario, i guess its better than nothing but if you can, get a proper AR500 plate.
Also, answer one question, How much you value your life?
Drzewacz888 well i was thinking about using it as well as soft kevilar. So when i get hit it wont break my ribs. Typically ceramics or steal is used but i have neither.
Brown-Streak Studios so you want to use it under soft body armour kind of like a trauma plate to dissipate kinetic energy. But remember, soft body armour can behave differently with hard material behind it as it will have no space to deform and catch the bullet.
If you use it in front of body armour, than you might get injured by bullet fragments. If you watched my titanium plate testing you can see what happens to my plate carrier. Using bare metal without spalling protection is risky.
If it was me, I would use it under body armour but don't quote me on that. Maybe do some testing yourself, it cost a bit but it's fun and it will give you a lot of info if done correctly. Good luck.
Drzewacz888 i was thinking of putting card board between the soft body armore and plate.
Brown-Streak Studios i don't think it will do any good
very nice 👏👏👏 . could you test 1/8" mild steel in my opnion also can stop this pistol rounds
1/8 its just over 3mm, 22 will not go thru but 9mm? maybe. there should be something with steel testing on YT. I'm trying to test light weight materials at the moment although i just ordered 2mm Tungsten plates for composite plate Tungstem/Aluminium and Tungsten/Titanium/Aluminium plate.
If money is no object, Titanium and Tungsten is a good composite plate. AR500 equivalent protection at half the weight and bulk. Aluminum and Kevlar / Spectra layered would make a good LVL 3A plate with puncture (knife) resistance. Just gotta watch that cost-complexity spiral.
You kinda just answered your own question, and proved my point. If Tungsten is 2.5x as dense as steel, then you'd only need a tungsten plate that was 1/2 the thickness to perform like steel. I'll just have to take your word on the DoD testing. It seems counter-intuitive that placing a denser material over a less dense one would have "no noticeable performance improvement". If you served, you'd know how often Uncle Sam gets stuff flat-out wrong.
*Titanium Armour*
Firstly, titanium armours can be spaced apart to increase the effectiveness at stopping bullets. And spacing the titanium sheets apart creates a cushion that slows the bullet before the titanium is penetrated. For example, a titanium shield can have a thin 1.2mm sheet of titanium over the front of the main shield plate. This 1.2mm sheet can have spacer lugs welded to it. Furthermore, a bullets force will be reduced on impact with a space of 1 centimetre inbetween two titanium sheets. And a 1.2mm sheet of titanium in front of the main shield plate would do this. Lastly, this titanium spaced armour has actually been demonstrated and tested to be effective on the American demolition ranches.
Next, spacing other metals apart would create a similar bullet stopping effect. And I imagine that spacing steel apart would be effective to create a cushion that would slow a bullet. In addition, aluminium would also increase in effectiveness spaced apart. Furthermore, I think because of the properties of aluminium spacing it would have limited benifits. However, you would still increase your bullet stopping power by spacing your aluminium apart. As a result, I think that all your metal and alloy armours should be spaced in some way and taking the time to do that is a good idea. Lastly, when you space your armours apart it is so effective that you can expect to stop a higher calibre bullet. And this is particularly useful on a shield.
Next, I have discovered the most perfect size and weight bullet shield. After testing with shield weights 10 kilograms is sort of the maximum weight you want a shield to be. Therefore, the perfect size shield is 3mm thick titanium. It is a tower shield to pass through doorways and it is 100cm X 70cm. The total weight is 9.5 kilograms without a handle. In addition, 10kg shields are perfect weight for 160-200 kilogram people. It is a perfect weight because it starts as slightly too heavy to use as a shield and as you practice it eventually becomes light and practical. Lastly, remember that you will be wearing a bullet proof brigandine behind the tower shield. This makes a 3mm titanium shield a reasonable thickness.
Table#1 Types of Shields
------------------
*Titanium backpack buckler*
-40cm in diameter
-4mm thick titanium
-Weight 2.5kg including handle
-If the 4mm of titanium is a high tensile strength and spaced correctly you will be able to stop 7.62 NATO and 50cal magnum rounds with this buckler.
*Titanium Tower Shield*
-100cm×70cm in Area
-3mm thick titanium
-Weight 10kg including handle
-If the 3mm of titanium is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield.
*Half a Titanium Tower Shield*
-50cm×70cm in Area
-3mm thick titanium
-Weight 5kg including handle
-If the 3mm of titanium is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield.
*Aluminium Shield*
-50cm×70cm in Area
-10mm thick Aluminium
-Weight 10kg including handle
-The tensile strength of aluminium varies a lot between regular aluminium and the 7000 series of aluminium. And that means you can make this shield just as effective as titanium.
*Steel Shield*
-50cm×70cm in Area
-3.5mm thick steel
-Weight 10kg including handle
-If the 3.5mm of steel is a high tensile strength and spaced correctly you will be able to stop 45cal magnum rounds and 5.56 NATO with this shield.
Lastly, the perfect thickness for bullet proof brigandine plates is 3.0mm or 4mm titanium. And you just try and find the highest tensile strength titanium you can and just use that thickness. In addition, I have also decided that if you get a 1mm thick aluminium face size plate you can shape it in to a horror face and then bolt it to your titanium helmet. As a result, you can have a full set of bullet proof brigandine armour with a horror face helmet. That is going to be terrifying with swords and bowling ball cannons. Finally, if your metal tensile strength is high enough you will be able to deflect or even completely proof yourself against 7.62 NATO bullets.
Table #2 Use of Formulas
----------------
s = tensile strength in pascals (Pa)
F = force in newtons (N)
A = cross-sectional area in (m²)
m = bullet grain mass (kg)
a = acceleration of bullet (m/s²)
t = time of impact (seconds)
v = velocity (m/s)
F/s=A (using tensile stress formula)
*(m(v/t=a)=F)/s=A*
9mm bullet Force = (m(v/t=a)=F)
v/t=a
(430m/s)/(0.0024s)=179,167m/s²
ma=F
(0.0075kg)(179,167)=1344N
Aluminium tensile strength = 240MPa (Aluminium)= 240000000Pa
F/s=A
(1344N)/(240000000)=5.6e-6m²
5.6e-6m² = 0.0000056m2 = 0.056cm² = 5.6mm²
Therefore, a 9mm bullet traveling at 430m/s requires 5.6mm² of 240MPa metal to block it.
Reference:
th-cam.com/video/QOkZzjQEx4M/w-d-xo.html
th-cam.com/video/FTYGvL_e1ko/w-d-xo.html
th-cam.com/video/urz8vhJpcIY/w-d-xo.html
th-cam.com/video/pBKItHNe4qk/w-d-xo.html
th-cam.com/video/6on8zQOuS-Q/w-d-xo.html
th-cam.com/video/xLSBRGePh0U/w-d-xo.html
th-cam.com/video/DwXzla2Ye24/w-d-xo.html
0.0024 is the set "time" variable in the formula. It is chosen based off of these test videos.
So it is that variable that matches these videos. The formula works fine. You just change the bullets and metal MPa around in it.
The tensile strength of the aluminium in this video is about 290MPa
Let's shoot a Tokarev at it
5.5 g (85 gr) FMJ469 m/s (1,540 ft/s)605 J (446 ft⋅lbf)
*(m(v/t=a)=F)/s=A*
Tokarev bullet Force = (m(v/t=a)=F)
v/t=a
(469m/s)/(0.0024s)=195,416m/s²
ma=F
(0.00551kg)(195,416)=1,076N
Aluminium tensile strength = 290MPa (aluminium)= 290000000Pa
F/s=A
(1,076N)/(290000000)=3.7-e6m²
3.7-e6m² = 0.0000037m2 = 0.037cm² = 3.7mm²
Therefore, a 85 grain Tokarev bullet traveling at 469m/s requires 3.7mm² of 290MPa metal to block it.
That's the smaller Tokarev bullet I think. Lower velocity a lighter grain
How Much Do they Weigh???
How Much Do they Weigh???
How Much Do they Weigh???
i did not check, sorry
Just from calculations...
1.35 g/cm^2 for 5mm(to stop 9mm) so just over 1kg for a normal sized(10x12in) plate.
2.7 g/cm^2 for 10mm(to fully stop 7.62 Tokarev(from pistol)) so just over 2kg for a 10x12in plate