Bullet proof foam

[GWN7]

"turns bullets to dust"

https://www.youtube.com/watch?v=dRpyM3a4Wj8

[sc_rufctr]

WOW... Thanks

[BReif61]

Can't watch the video at work, but I'm skeptical of the words "bulletproof" and "foam" used together.

[berettafan]

video looks bogus. like those commercials with fake doctors and pretend reporters.

'been shown to withstand various radiation'. ummm....yeah and? what did they think it would catch fire or something?

[GH85Carrera]

Originally Posted by BReif61

Can't watch the video at work, but I'm skeptical of the words "bulletproof" and "foam" used together.

The video shows it to be a metal foam. It looks like a piece of steel with air bubbles in it. Like any other wild claim, more testing is needed by independent labs. It would be a great way to make a bullet proof vehicle if it works like the video shows.

[masraum]

Super cool, except in the video, it looks like it's a chalk board that the bullet hits, and they don't show you the "after". You would think if there were going to come out with this, they would want to really show something cool. Must be at the VERY early stages.

[sc_rufctr]

[masraum]

They are doing some pretty incredible things with nano materials these days that have some pretty amazing properties. I can't imagine why this wouldn't be possible.

[GH85Carrera]

Originally Posted by masraum

They are doing some pretty incredible things with nano materials these days that have some pretty amazing properties. I can't imagine why this wouldn't be possible.

Cost?

[kach22i]

I remember this material from a year or two ago, a much better video was posted on it.

Still a good post, and the Halo-2 commercial which preceded it was most entertaining.

Made my day.

[BReif61]

Originally Posted by GH85Carrera

The video shows it to be a metal foam. It looks like a piece of steel with air bubbles in it. Like any other wild claim, more testing is needed by independent labs. It would be a great way to make a bullet proof vehicle if it works like the video shows.

Definitely needs more testing. I pulled the video up on my phone, and it appears to be testing the armor against a .30-cal or smaller ball round. This would be a minimal level of protection for currently soft-skinned vehicles.

As for making anything bulletproof? Not going to happen. Much like idiots, they just build better bullets. My guess? Anything AP or over .50cal goes RIGHT through this stuff.

[ossiblue]

Originally Posted by BReif61

Definitely needs more testing. I pulled the video up on my phone, and it appears to be testing the armor against a .30-cal or smaller ball round. This would be a minimal level of protection for currently soft-skinned vehicles.

As for making anything bulletproof? Not going to happen. Much like idiots, they just build better bullets. My guess? Anything AP or over .50cal goes RIGHT through this stuff.

The bullet was an armor piercing round. Here's the detail of the test:

"The shield was comprised of boron carbide ceramics as the strike face, with composite metal foam (CMF) as the bullet kinetic energy absorber layer and Kevlar panels as backplates. To test its durability, Rabiei and her team took aim with a 7.62 x 63 mm M2 armor-piercing projectile, which was fired in line with the standard testing procedures established by the National Institute of Justice (NIJ).

"We could stop the bullet at a total thickness of less than an inch, while the indentation on the back was less than 8 mm," Rabiei says. "To put that in context, the NIJ standard allows up to 44 mm (1.73 in) indentation in the back of an armor."

Lightweight metal foam turns armor-piercing bullets into dust

[BReif61]

Originally Posted by ossiblue

The bullet was an armor piercing round. Here's the detail of the test:

"The shield was comprised of boron carbide ceramics as the strike face, with composite metal foam (CMF) as the bullet kinetic energy absorber layer and Kevlar panels as backplates. To test its durability, Rabiei and her team took aim with a 7.62 x 63 mm M2 armor-piercing projectile, which was fired in line with the standard testing procedures established by the National Institute of Justice (NIJ).

"We could stop the bullet at a total thickness of less than an inch, while the indentation on the back was less than 8 mm," Rabiei says. "To put that in context, the NIJ standard allows up to 44 mm (1.73 in) indentation in the back of an armor."

Lightweight metal foam turns armor-piercing bullets into dust

So the ceramic is breaking the bullet. The foam is just attenuating the energy. Also, the M2AP is an ancient round.

Not trying to belittle the progress in material science, just pointing out that this foam isn't performing miracles.

[masraum]

Originally Posted by BReif61

So the ceramic is breaking the bullet. The foam is just attenuating the energy. Also, the M2AP is an ancient round.

Not trying to belittle the progress in material science, just pointing out that this foam isn't performing miracles.

Well, it is pretty cool since it's foam. And I would assume, it's not necessarily ready for use in making tanks, but might be nice in certain applications. Also, if 1" does the trick with this old armor piercing round, maybe 1½" or 2" would stop your more modern rounds.

[svandamme]

Originally Posted by BReif61

So the ceramic is breaking the bullet. The foam is just attenuating the energy. Also, the M2AP is an ancient round.

Not trying to belittle the progress in material science, just pointing out that this foam isn't performing miracles.

You are being a bit dismissive just for the sake of it , no?

"This is BS , any AP will go right through it"

shows quote that it was AP

"That's old crap"


M2 Black tip may be ancient , it's still a pretty effective AP round.
It's 30-06, so heavier then any 7.62x51 AP round.



More energy, more weight, more steel, more effective then 308 AP.
And you'll need the best plates you can find in your plate carrier to stand a chance against them.

You need to look at 338 or 50 AP if you want an upgrade from that kind of performance.

[intakexhaust]

Try for yourself some backyard experimentation. Fire .22 long and then .44 mag 240gr. jhp into 3/8" thick Lexan at point blank range. Tell me your results.

[flipper35]

Also consider a lot of the 3rd world is using 7.62x39.

And yes, the proper term is bullet resistant.

[BReif61]

Originally Posted by svandamme

You are being a bit dismissive just for the sake of it , no?

"This is BS , any AP will go right through it"

shows quote that it was AP

"That's old crap"


M2 Black tip may be ancient , it's still a pretty effective AP round.
It's 30-06, so heavier then any 7.62x51 AP round.

I'm trying to be more skeptical to foster conversation. But APM2's are WW2 vintage. Encountering them in the field is going to be unlikely. They used that round for testing because it is the "round of record," so to speak. It's what they had when they started seriously testing armor and it has become the baseline for further testing.

I'm just saying I'd like to see more robust testing and the resulting outcomes. Miracle armors are almost never that (think: Dragonskin).