Thanks again; I really appreciate you taking the time to test the plate. Amazing video; it has given me a lot of useful information. Sorry for any confusion on the materials; the glue smeared my writing. Materials used include: 1/4in alumina 90% purity 2x 14-gauge Grade 5 Titanium 20 layers UHMWPE

@evansaw293

5 ай бұрын

Do you have a vid on this? Where do you guys get your alumina and UHPE? For the price I can find it I may as well buy a plate..

@evansaw293

5 ай бұрын

Nvm watched your vid.. 180 usd is ballpark the price of a production plate. But you can customize your build for weight, flexibility, stopping power, coverage etc. Honestly its nice to see other builders who actually understand how to build these, not many people have done a legitimately good flexible build

@ryanjohnson1814

4 ай бұрын

Try grade 4 titanium, when I researched it would be better then grade 5, for this application. Or did your research, come up with a different conclusion from grade 5, grade 4 ?

@Armor-Innovations

4 ай бұрын

@@ryanjohnson1814 I found Grade 5 to have a few better properties including a higher tensile strength, although they are still very similar. Grade 4 is mostly pure titanium while grade 5 is alloyed with aluminum and vanadium for increased strength. Also grade 5 is cheaper so plus for me.

It's good to see the community helping each other out. It was a good idea to put the trauma pad on the back to see if more PE could stop the higher tier threats. Still, considering the flexibility of the plate and what it was shown to stop over on Armor Innovations own channel, this is very impressive.

Very cool Armor Innovations! Nice work!

Amazing

Pretty impressive

Producing such good content you need to do a video and sound check before you start rolling for real. Lapel mic was getting scuffed. Thanks all the same for posting.

@3RBallistics

4 ай бұрын

Lots to work on with video production. I’m still learning and appreciate the feedback.

would be nice to see how much force is being dissipated on impact. even without penetrattion, some of those dents from impact seem like they would still be fatal.

@3RBallistics

5 ай бұрын

The NIJ allows for 44mm of backface deformation. Granted that’s with a warm calibrated clay backing. However, in the clay we used, I measured less than half of that. I’m sure it would have hurt but I doubt it would have been fatal.

The titanium plates we're too small of a diameter if you just had another 1,000 or more to the thickness along with the ceramic tile I think you were done a lot better. But buying titanium plate sheets it's actually very expensive and hard to come by most of the time it's not pure titanium

@Armor-Innovations

4 ай бұрын

Agreed. The original plan was to have 3 layers of titanium but I got rid of one to bring the weight down. Due to plate being flexible the titaium had to be segmented which allowed the bullets to rip the individual pieces through the backing material. I do think if I were to remake this in a solid plate configuration it would do so much better.

This is such a good build! Normally I understand a persons build better than they do, but the titanium kind of throws me for a loop. Ive never used it, or reasearched it. I assume it functions similar to 7075 aluminum or steel

@Armor-Innovations

5 ай бұрын

Yeah, Titanium has the best strength to weight ratio of all metals. I used it to reduce the overall thickness of the plate. The .14in of Titanium I used has a similar performance to 40 layers of UHMWPE which has a thickness of .37 unpressed. Whith the addition of Titanium being harder than the UHMWPE I thought it would be good to use after the strikeface. I used Grade 5 which is i think the second best for armor. They do have a specific Titanium alloy for armor called Grade 38 Titanium.

@kenofken9458

5 ай бұрын

By itself, titanium is not great for stopping rifle velocity rounds. It's light and strong, yes, but it doesn't have great shear strength and sucks at dissipating heat and so it will fail by plugging. Thin plates of titanium, anything much under an inch, will actually perform worse at stopping rifle rounds than an equal weight of armor steel. Now you can't really prevent that shear failure, but you can put it to use in a composite design. The plug that blows out the back side of the titanium plate is wider diameter than the bullet and traveling at a lower velocity. That will make it easier to stop with UHMWPE backer. The selection of the poly material is itself another art and science. It's best when pressed in a composite matrix - you've got UHMWPE fibers embedded in a resin matrix. The exact weight of the polymer matters, the ratio of fibers to resin and also the exact resin itself. It all has its tradeoffs. A stiffer polyurethane resin will be better at minimizing backface deformation. A more ductile resin matrix like Kraton elastomer will spread impact force better. If you were to take your titanium thickness up a bit, maybe to 0.25 inch and sort out the right UHMWPE system, you could probably ditch most of the rest of the layers. Kevlar is useless against rifle rounds. It might help stop some of the migration of fragments inward, but the poly should be able to handle that as well or better. Unless you need to stop AP, ceramic in the mix is probably just more weight. With just the two ingredient sandwich of titanium and poly, it should be possible to easily stop .308 and probably even 5.56. Of course what little I know about these combinations involves solid plates, not flexible ones. While flexible hard armor is a cool idea on paper, I'm not sure how many real world problems it solves for the average user versus design and construction challenges. The one place where I see flexible armor really earning its keep would be for some sort of full body system where you needed to armor moving joints like hips and knees.

@kenofken9458

5 ай бұрын

Titanium never really caught on as body armor, and there are good reasons why, mostly to do with the fact that any plate that can be fashioned at reasonable expense that a human can actually wear is not good at stopping high velocity projectiles. The U.S. army piddled around with it a little in research in the 50s and 60s. The Soviets used it a fair amount because they were up to their ears in titanium, but the end product was really just another flak jacket, not a rifle armor system. In thicker slabs its great for vehicle armor but only worth doing there in aircraft.

@evansaw293

5 ай бұрын

I wasn't far off on my assumptions about titanium then.. As far as your design improvements go however. Putting a resin in the uhpe will improve stopping power, but flexible armor is so nice to have I dont think its worth the trade off. Using a plug to envelope the bullet and move with it is pretty inconsistent. If you increase the thickness it may have to much weight and be either punctured or moved out of the way of the bullet.

@kenofken9458

5 ай бұрын

The concept of flexible rifle armor is cool, but has anyone really dug into the real world dynamics of it? Is there a real problem getting solved? Take the basic 10x12 chest plate. You can do a thing like in the infomercials where you can't bend the solid plate, but the flexible one..WOW, look how flexible this is! But rifle armor, at least as it's configured now, sits right on the one part of the upper human body that is least flexible itself. You can bend at the waist. You can, and have to be able to move your arms around. You can even twist your torso about the axis of the spine, but all of the places that movement actually takes place in your body is where the plate isn't sitting. We don't bend from top to bottom mid-sternum, and if we do, there's some probably fatal trauma happening. In other words what real world advantage does a flexible 10x12 chest plate give us over the traditional kind?

Better than Dragonskin😂

@Armor-Innovations

5 ай бұрын

LOL 😂

What titanium alloy is that? if someone thinks as I than it is heavy titanium :)

@3RBallistics

4 ай бұрын

Grade 5 titanium

Nice work gent's... Overall very impressive, a layer of porcelain would have stepped this plate up!

@evansaw293

5 ай бұрын

No. He is already using aluminum oxide as a strikeface. Porcelain is what we use when we cant find alumica silica or boron, or just want a budget build. His build was near perfect for the threats it was put against. He could've used less uhpe and more alimina if he wanted to stop the copper round, but realistically solid rounds like that probably need a thicker plate....

@stihl888

5 ай бұрын

@@evansaw293 Ahh you are correct, i rewatched the end and can see the oxide tile layer now...

You are kidding all of us right! Honestly only a moron would consider using this stuff. Your going sustain a crap load of trauma with junk body armor like this...

@3RBallistics

4 ай бұрын

The irony is that the quality of materials used in this build is higher than what you would buy from many NIJ certified companies but costs a fraction of the price. But of course because it’s not made in a factory it’s going to be crap. It’s a good thing this video is only for entertainment.