Relikt Explosive Reactive Armor Simulation 

This isn't Era, it's just spaced armor. Shows sabot are useless and you can defeat an Abrams with a garden fence.

@@mustang1912 you have no idea what you're talking about. You're just spouting nonsense at this point.

Very little

@@76456 Spaced armor works great. It would be VERY interesting to see a comparison

@@76456 No penetration (worst case is small spalling flying) without explosive. The original case is set up in such a way it is very close to the limit.

@@johns.1898 2 HH steel plates spaced would be trash. Agaisnt APFSDS and HEAT, im not saying it would be cool, but there are better things to invest time on.

@@76456 Well I guess the German MoD and its costumers should revert their leopard 2 turrets to their older configurations after your recommendation. You should tell them. Same for the Abrams front hull armor, turret face, as well as the Leclerc's hull and that of the Japanese MBTs. Even Soviet era hulls have sheets of plates split by plastic layers which might as well not be there. Multiple spaced thinner armor plates have been the standard for decades. You're basically calling every modern MBT armor design irrelevant.

It's not simple.

@@Noname_NoID its extraordinarily simple. that doesn't make it easy. the simplest things are usually the most difficult.

@@Noname_NoID it was simple enough the Soviets had several prototypes in the late 1940’s after world war 2, the only thing that was complicated was what kind of explosive and how much to use…. Which as they found out shouldn’t be half a kilo per plate 😂 and the rest is simple trigonometry

Rock hit plate, plate fly, plate hit rock, rock slow, rock no hit other plate good.

@@primal_guy1526 grug understand better now. angry iron beetle throw fire rock at other iron beetle, plate using magic fire clay hit fire rock going fast and make fire rock go slow, then fire rock not smack iron beetle so hard. Tribe druids very clever for making magic fire rock stopping brick.

Yes! And maybe mk103 or 108s

For all interested, Britain already did some official test's with 30mm Minengeschoss - No simulation, real test shots on british airplane wings and fuselage. Search for it on youtube. Most of them were one shot tests and it was enough to do some pretty insane damage, like half a wing off or whole tail section blasted off.

@@KiLLoRChiLLoR thanks for sharing that, I'll check it out.

@@KiLLoRChiLLoR send links pls

@@elliotsmith102 Just Search for "30mm Minengeschoss". ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-91LUxqn1QY0.html

Depends on the type of ERA, Kontakt-1 and most other ERA doesn't have much of an effect on kinetic ammo, but Kontakt-5 and Relikt does

ERA was designed specifically for kinetic energy projectiles. It was discovered accidentally during testing in the Middle East after noticing that tanks where the ammunition exploded prevented full penetration.

​@@funkrates4778errrm... what? I think you miswrite "kinetic" instead of "HEAT", cumulative. And history was started at WW2 with external ammo/explosive/fuel vs panzershreks & faustpatrons. Blaizer ERA was developed not in hours, it was years of work... by WW2 veterans, btw.

Ok

Yeah, APFSDS darts are fast as f, boi!

ERA plates are harder than tungsten alloy, but much less dense. ERA heavy tungsten plates would achieve lower speed and rather worse results.

Also since the plates move perpendicular to the direction of the projectile. The penetrator is forced to go through a good portion of the plate before it moves out of the way, seen especially at 00:10

ERA like this works by "feeding" some material to the projectile. It's highly errosive to the rod because it has to go through a lot of material this way. There's also lateral forces the plates impart on the shell but i can't tell how much those did. This feeding can actually cut the rod. I reckon if the plates were thicker, they would have done it

@@dejmianxyzsimulations4174 you're gonna have to explain where you got that ERA plates are harder than tungsten alloy. Where is this information? Because I'm calling bullshit. Do you understand the reason tungsten rods tend to be completely ineffective against armor slopes greater than 80 degrees? Do you understand that if the plates were harder that would make them brittle as all hell, meaning the explosive part of ERA would render them useless because they would just shatter?

@@cordedrexcordedrex6854 typically this type of ERA has a direction and spot its supposed to be mounted to add protection. The plates are usually just acting as additional armor. Relikt claims to work on KE but theres zero evidence to support that claim and theres also little scientific evidence to say that the plates would do anything but induce some yaw to the projectile and only at a minimum level since the speeds are so great. The plate would need to get in front of the projectile continuously and at best it's being pushed up for a moment t but physics takes over as it has little effect on longer threat projectiles. ERA is for use against HEAT, smaller diameter anti tank munitions, and that's about it today. They fail to be effective in most cases and can cause more issues than just adding a little more armor or some sort of composite layers. Tank on tank calls for APFSDS and you'll find that NATO is using ones that are over twice this length and have more mass and a segmented rod which means your plate does nothing in the way of protecting the crew or tank.

Possible, but requires a research station, or several weeks of computation.

Is all about losing mass on vector. Another good idea of ERA is to have the 2 plates be zigzag shaped to introduce more material for more deflection

Something like that, but the main effect of this type of era is the cutting down of a piece of rod.

No. The plates are not static, there is an explosive substance between them. When the protection unit is initiated, the upper plate begins to act on the projectile from the bottom up, and the rear plate acts from the top down. There is a multidirectional impact on the projectile. The explosive does not react to a hit up to 40mm caliber.

There would probably be no penetration, but for the reason you mentioned (near the penetration limit)

Possible

And M829A4 which has a penetrator reported to be a bit shorter and of larger diameter than its predecessors. A design purported to be far less affected by ERA/NERA.

There is no info available, like outside of some pixel measurement of external dimension.

It is only designed to destabilize an APFSDS because it is long and thin, against a WW2 shell would only slightly reduce penetration because of the high hardness steel the ERA is made of.

Me no expert but I read enough literature to know a little bit. If you go throught the video again, you clearly see the projectile with the era has many cracks and separation. Now, imagine the rod as a drill bit. And the armor is a piece of material you want a hole throught it. The projectile with era can be thought as a bit with cracks and is crocked along the axis. So a good condition 3/8in bit will cut a 3/8 inch hole. The bad condition 3/8 inch bit will cut a 5/8inch diameter crater that has jagged edges and what not. And the era is a moving plate. It is essentially feeding material Infront of the rod. Regardless of projectile, if there is more material, it will perform worse. There are many things happening. And this is as simple as I can reduce it.

The reason it doesn't do much is because it's not meant to do much really. It effects older shells but not really modern ones or APFSDS. But the actual Relikt ERA which works the same as a HEAT shell just on a smaller scale would absolutely either defeat the shell altogether or degrade the penetration significantly.

@@skparadise3382 Except it is doing alot? Rod (apfsds in the vid) goes from 145 to maybe 60? And we aren't going to just have block of steel behind an actual real world armor array.

@@skparadise3382 Relikt is specifically made against APFSDS, and I haven't seen any proof that your "Relikt" or Nozh is better.

Didnt you watch the video? ERA gave the penetrator so bad vibes it didnt even go through half of the armor.

In a community post, I showed how they are mounted on tanks. The place must be there for the plate to move.

Older pattern will bounce, newer pattern will explode and perform a regular scj armor interaction. The thing that matters here are the fuse, the projectile geometry does not matter for the most part.

This is the result of a correct temperature weakening (adjusted to the size of the mesh used)

@@dejmianxyzsimulations4174 whats the temperature weakening and what should i change it to a mesh thats e.g: 0.001m

Ansys

I wanna see relikt side skirts getting hit to

The bottom plate will perform weaker, the top plate will work better, but the bottom plate seems to be more important.

Yea. But rod will neither snap nor deform . Defor imply plastic deformation, which will not happen even with armor steel as soft as those in the 100bhn range. AP interaction are simply too fast for any real deformation to occur. Snap was observed with very small diameter rod or scaled model. Crack and separation is possible with larger rod and that's what we observed irl. Snap rarely happen.

@@jintsuubest9331 why do you say that ? APFSDS rods are quite literally desentagrating as they travel through armor which is why the general trend with APFSDS rods is to go longer and longer not only to have penetrative capability but also to combat the shearing effect of heavy ERA. Even in the simulations run on this channel as well as other APFSDS absolutely deforms under high lateral stress which causes the rod deflect reducing penetration.

@@nemisous83 Because those terms have special meanings deformation and plastic deformation are not the same thing. Shattering or separation are not the same as snapping.

If you make it faster, it wont hurt the projectile That's why there is the weight plate on the inner side... so the back plate has a slower speed then the front plate

There is no tank behind the era. It is just a target to compare what happen. Composite increase simulation time signficantly. And I have no idea what you are saying in the previous sentences.

To me it seems it does, look how it destabilises the latter part of the dart.

Because that's what the ERA is supposed to do

Nozh ERA works like that. The Kontakt does not work on the two-plate principle. It has one thick plate.

@@dejmianxyzsimulations4174 Relikt also works the same as Nozh.

@@dejmianxyzsimulations4174 Also I looked at the pictures you posted on the community tab. The ERA on the turret of the T-72B3 is Kontakt 5, not Relikt. The only Relikt ERA it has is on its sides in those big panels.

@@skparadise3382 ERA with the designation Kontakt-5 looks different (scheme not photo, photo shows Kontakt-5). Nonsense to name two other ERAs the same way.

@@skparadise3382 do you have any evidence to support that claim? Because everything I’ve seen about relikt says it uses flyer plate.

Mantlet?

@@dejmianxyzsimulations4174 yeah. near gunner's optics

@@VIONICK08 I think the shell might be so big it overlaps with the side turret armor

Well, if you have your own infantry anywhere near the front of the tank then something is wrong. Just the tank shooting its cannon is dangerous enough for infantry if they are standing too close.

Always the same excuse with no sense aboy Era Infantry should never be cloose to a tank and iven more when we talk about the front of it

I would need a research station

@@dejmianxyzsimulations4174 do you mean a powerful computer?

@@theraysofkindness A computer with several dozen cores.

@@dejmianxyzsimulations4174 will it work on Microsoft Windows Server 2019? how many hours does it take?

I can share a machine with 48 cores for a few days for you :)

I have posted a scheme in the community tab. Kontakt 1 looks completely different and has no effect on kinetic penetrators.

@@dejmianxyzsimulations4174 i was watching Armor Cast's video called "What Are Those Bricks on Russian Tanks? | Koala Explains: Explosive Reactive Armor (ERA)"....It shows a different configuration for Relikt.....or am I wrong?

You're thinking of Nozh, a Ukrainian development

Kontakt-1 has 2 thin plates . It works against HEAT, but useless against APFSDS. Relikt has thick plates and that makes it effective against APFSDS. What you are talking about is the Ukrainian Nozh, an improved soviet Gofr.

I stand corrected. Thanks gents

there are different types of ERA, some actually work only against HEAT warheads.

Kontakt 1 ERA can only affect HEAT Munition such as RPG 2 and Early Version of BGM 71 Tow Kontakt 5 ERA is an Heavy Explosive Package for Tank that can drastically decreased the penetration of APFSDS round I'm not sure on how it works but maybe because a much more thicker plate and new Explosive Element Relikt is a Third Generation ERA it's pretty similar to Kontakt 5 but the different is Kontakt 5 only have one metal plate while Relikt have two plate as you can see in the video

He probably can't since he would have to simulate few shaped charges at same time and it would probably get an error or it would take days to complete. Plus i think it wouldn't have done much against tungsten projectiles since it's only good against steel rods since it cuts them into peaces.

@@Slavkovic_Predrag The demanding stuff, multiple nera plate sim with rod, already take about 100hours, and can sometimes goes up to 300hours. Multiple scj/efp would take weeks, assuming it doesn't give error. He tried nizh and the solution time increase exponentially, blew pass 3000h and is increasing. And the mechanism of defeat is the same as any other era. Introduce lateral force to the rod hoping to get a crack/separation.

If you have a choice, don't use textolite. If you don't have a choice, still don't use textolite. And rubber should be stuff between 2 very elastic plate, neither 20mm of steel nor ceramic is very flexible.

@@jintsuubest9331 Alright, How do you know all of that?

@@Rotiiii98 Steel and rubber is cheaper than textolite. Nera use energy from the projectile to power the flexing of plate. So you need at least 1 plate that is flexible attaching to the rubber layer.

@@Rotiiii98 Read the Tankograd blog, as a starting point. Pick up some textbooks on armor penetration.

Kontakt-5 use one thick plate

@@dejmianxyzsimulations4174 I see. Do you have a source? My info mainly comes from Koala/Armor Cast, seeing as Kontact-5 is "Gen-2 ERA" and Relikt would be "Gen-3/Heavy ERA"

@@Registered_Simp I posted a schematic and photo on a community post. When it comes to kontakt 5, it's easy to find good pictures to compare. In one forum I saw someone posted a link to btvtinfo where the Relikt patent was shown, but I would have to look for it again. The armor with several shaped charges is called Nozh, I don't know what the Russians call their version.

@@dejmianxyzsimulations4174 Thank you good sir

@@Registered_Simp Take koala stuff with whole planet worth of salt. His vid are often filled with minor inaccuracy throught the whole video, and often get the technical stuff completely wrong. There are no clear distinction of era "generation", it simply don't exist.

I can try someday

Someday for sure

@@dejmianxyzsimulations4174 Thank you

Any technical drawing?

he dosent know the exact properties of anything i would guess the simulation is just based on publicly available info and testing

Yeah 12 Sievert I like that

First of all Relikt depends a lot on the angle of the armor so it would be pretty much useless to put Relikt as a side skirt armor the better choice would be the 4S24 Soft Package ERA that can stop some Tandem Charge Anti-tank Weapon

@@Cirno_Say_No_To_Zionist ah ok

@@Cirno_Say_No_To_Zionist they can put it on an angle like they do on the turret

There's no point. The overhead slat armor isn't intended against Javelin. Just watch ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mFdOgkllUvs.html for a basic explanation then read the actual articles that it's based on.

Ansys

@@dejmianxyzsimulations4174thx

@@dejmianxyzsimulations4174can you give me a tutorial?,i don't know how to

@@WolfgangSchreiber. I've done 3 tutorials

he probably dosent know the exact performance of dm73 just like any modern projectile or armor to make a video like this

Bro DM 53 is already a Classified Information and do you want DM 73?

As in title and description. Relikt form T-80BVM for example

Third Generation ERA, Relikt that can be found on T90M "Pyorv 3", T80 BVM, and T90MS Future planing to add Relikt to T72B3M

The warhead on an ATGM is HEAT some like the Javelin are dual changed the damage is caused by the HEAT warhead and velocity isn't particularly important. What is important is the power of the warhead. I think this person has done some HEAT simulations already. If not I have definitely seen others that do these simulations do HEAT rocket/missile simulations.

I did a small scale HEAT simulation. More than a good computer is needed to make a whole missile. Two simulations ago I showed best Javelin simulation that can be performed with an good computer.