New material developed to stop .50 cal rounds . Lighter
https://www.military.com/video/new-metal-foam-can-stop-50-caliber-rounds
https://www.military.com/video/new-metal-foam-can-stop-50-caliber-rounds
Metal Foam stops .50 Cal.
- Thread starter welder516
- Start date
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Better hope the Hajis don't get it.
Makes sense, the air pockets inside the foam, absorbs the force of the impact.
Sort of like shooting a pistol round into a snow bank. It doesn't penetrate very far.
Sort of like shooting a pistol round into a snow bank. It doesn't penetrate very far.
dist1646
Ultimate Member
Just wait until they figure out how to do it with woven bamboo.
I think it is as much that it allows the round to yaw, presenting more surface area to the material to stop it. You can even see that to a degree in the video. It is a similar mechanism to layered armor in ships. Downside is it takes up a lot more space. Upside, if space isn't at an absolute premium then it reduces the weight. I'd think this would also have upsides against HEAT rounds. Gives the hot gas/plasma plume an opportunity to disperse more, creating less focused cutting action. Downside is compared to armor that stops the round, this armor soaks it up. So several hits close to together would compromise it. Where armor that deflects or stops the round generally wouldn't.
Could make really good up-armoring kits/panels for vehicles though. I'd see it as ideal for underbody mine protection.
I'd be curious what the thickness of the material is that they used and how its density compares to just hardened steel.
- May 4, 2008
- 1,613
Here is a better article https://www.sciencedaily.com/releases/2019/06/190605105943.htm
Requires an inch of the material to stop and M2 AP round so while better material than homogenous steel it can't replace it for some applications.
Requires an inch of the material to stop and M2 AP round so while better material than homogenous steel it can't replace it for some applications.
Quote, "The armor was tested with the rounds being fired at impact velocities from 500 meters per second up to 885 meters per second"
Uhhh, doesn't a .50bmg round travel a little faster than that?
Now down range quite a way, maybe. Not 100% sure of ballistics of the .50.
Uhhh, doesn't a .50bmg round travel a little faster than that?
Now down range quite a way, maybe. Not 100% sure of ballistics of the .50.
photoracer
Competition Shooter
Transparent aluminum will stop multiple .50 rounds. That is Aluminum Oxynitrite for you chemists out there. 1.6" of this is better protection than 3.7" of armored glass, plus it can take multiple hits and its much lighter since its a type of ceramic crystal. Good way to up armor your SUV (urban assault vehicle) windows. Then seal up all the body cavities and fill them with Oobleck. The problem with all this is a roadside bomb while not being able to penetrate the force of the blast will likely blow the vehicle into doing a triple summersault in mid-air so everyone still might die from it. Might need a giant airbag to inflate around the vehicle.
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