New armor breakthrough

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phavoc
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New armor breakthrough

Postby phavoc » Mon Apr 09, 2018 10:00 pm

Cool article on Fox about a new foam-type armor that has some amazing properties.

http://www.foxnews.com/tech/2018/04/09/ ... emies.html
Reynard
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Re: New armor breakthrough

Postby Reynard » Tue Apr 10, 2018 12:45 am

A future extra planetary vehicle hull material?
baithammer
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Re: New armor breakthrough

Postby baithammer » Tue Apr 10, 2018 2:13 am

As its structure is porous it wouldn't be used as a skin and the holes aren't exactly a new discovery as Sandhurst had a similar project for armour that found armour with grill like surface tended to be better at dealing with kinetic hits and a serious reduction in weight.

What would interesting is to see if it has actual foam like properties such as flexing over the entire surface which would seriously augment material strength.
phavoc
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Re: New armor breakthrough

Postby phavoc » Tue Apr 10, 2018 2:26 am

A honeycomb laminate, with alternating layers of metal and foam could be the answer.

Though I'm wondering if they are being a bit optimistic about tank armor. An APDS round is a bitch to defeat. A HEAT round uses a plasma penetrator. And there is the good ol GAU-30 Avenger cannon. :)

The material sounds very promising, but more tests are indwed requines to see if the tests properly scale up!
Condottiere
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Re: New armor breakthrough

Postby Condottiere » Tue Apr 10, 2018 7:04 pm

Our principal issue is volume, rather than weight.

If you install it like reactive armour (which I'd additionally pack underneath), do the holes represent negative volume?
phavoc
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Re: New armor breakthrough

Postby phavoc » Tue Apr 10, 2018 11:16 pm

Condottiere wrote:
Tue Apr 10, 2018 7:04 pm
Our principal issue is volume, rather than weight.

If you install it like reactive armour (which I'd additionally pack underneath), do the holes represent negative volume?
No. A block of foam occupies a set amount of space. Therefore this would do the same. Reactive armor needs to be on the outside. Otherwise if it goes off you are punching holes in your own armor. The idea is for the external charge to stop an income projectile from penetrating.
baithammer
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Re: New armor breakthrough

Postby baithammer » Wed Apr 11, 2018 12:04 am

The key of the pores or grill to work is to break up the projectile before hitting the hull which works rather well based on trials at Sandhurst.

If the foam also has an elastic effect it could work even better by distributing the force over a larger surface.
Condottiere
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Re: New armor breakthrough

Postby Condottiere » Wed Apr 11, 2018 2:46 pm

Tee Five gives the option for composition of armour layers.

Closest we have would be a reflec coating; maybe stealth.

Arguably nickel iron.
Condottiere
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Re: New armor breakthrough

Postby Condottiere » Tue Apr 17, 2018 11:37 pm

NEW FOAM ARMOR FOR TANKS CAN ALSO PULVERIZE ENEMIES

https://www.youtube.com/watch?v=zkl7dIsQ_H8
locarno24
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Re: New armor breakthrough

Postby locarno24 » Thu Apr 19, 2018 9:43 am

Well, it's essentially taking the concept of spaced armour and turning two layers with a single cavity into a honeycomb of multiple cavities.

A very nice idea and a sensible application of increasing complexity. The problem (if there is one) will be the manufacturing cost

HEAT projectiles are likely to prove fairly susceptible to this design, because spaced armour is already one of the best purely material defences as once the plasma jet starts coming apart it dissipates force quite quickly.

I'm not entirely sure of the mechanics, but I'd think the honeycomb as suggested should have a degree of elasticity that a solid block wouldn't, which would suggest a HESH-style spalling-inducing warhead would be less effective too.

Suitably high-velocity purely kinetic penetrators like APFSDS, on the other hand, will probably do rather better provided they don't disintegrate - a cavity of a similar size to the penetrator won't cause much in the way of deflection - and since they're designed to go through the same volume of solid material, the odds are in their favour.
Understand that I'm not advocating violence.
I'm just saying that it's highly effective and I strongly recommend using it.
Condottiere
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Re: New armor breakthrough

Postby Condottiere » Fri Apr 20, 2018 11:29 pm

The holes could be designed tp disperse energy or heat.

For ground vehicles it's a matter of weight; for spaceships, volume matters.

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