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Nairaland Forum / Science/Technology / The Difference Between A Normal Glass And Bulletproof Glass(Photos) (4468 Views)
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The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 11:31am On Aug 07, 2017 |
Technically, it should be called ‘Bullet resistant laminate composite’, however that doesn’t sound anywhere near as cool. Why is it not bulletproof? Well with enough time, enough effort and a big enough caliber bullet, rapid shots, the bulletproof glass can eventually be penetrated and will break, hence is not really bulletproof. The strength and the durability of the bullet-resistant glass will depend on how it is made and the thickness of the laminate glass itself (how many layers there are). Normal glass will shatter when one bullet is fired at it. This is because glass can’t bend (elastically deform) and absorb the energy of the bullet, so the bullet just passes through, losing a very small amount of energy as it breaks the glass. https://matterchatter./2012/04/29/the-difference-between-normal-and-bulletproof-glass/ Lalasticlala, Mynd44 4 Likes 1 Share
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Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 11:31am On Aug 07, 2017 |
Bulletproof glass is made up of layers of glass and a plastic (polymer) layer, usually polycarbonate. Polycarbonate is a transparent (see-through), soft, ductile plastic with very high strength and is a sixth of the weight of glass. Because the polycarbonate is soft, it is able to deform and stretch by taking the energy from the moving bullet. If the first layer does not stop the bullet, it will pass through to the next polycarbonate layer and maybe even the next layer, but eventually enough of the energy from the bullet will be absorbed by the polycarbonate causing the bullet to slow down so much that it doesn’t have enough energy to pierce through the final piece of glass. If the glass is too thin, and the bullet does make it through, it is likely that enough energy has been absorbed from the bullet that it won’t do much damage on the other side of the glass. The strength of bulletproof glass depends on how many layers of glass and polycarbonate there are, with more layers resulting in a thicker piece of bulletproof glass. A shot from a rifle would produce more force than a handgun so the glass would need to be thicker if it needed to resist rifle fire. Typically bulletproof glass ranges from 7mm to 75mm in thickness, however as the 75mm piece of glass will be very expensive and very heavy, it’s only used in extreme cases. Also the thicker the bulletproof glass the more opaque (less see-through) it is, which can cause problems if the glass is used for the windshield of a car. Although the layers of glass within bulletproof glass can break, the polycarbonate layers which are bonded to the glass prevent them from shattering and flying apart, and so the whole structure remains intact, unlike normal glass where the pieces fly everywhere. 3 Likes 3 Shares
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Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 11:32am On Aug 07, 2017 |
Here's what happens when an RPG is fired at 16 inches of bulletproof glass. A video uploaded to YouTube purportedly shows what happens when a Russian RPG-7 (rocket-propelled grenade) is fired at 45 sheets of bulletproof glass, measuring about 16 inches thick. An RPG is a portable, shoulder-fired, anti-tank weapon system that fires rockets equipped with an explosive warhead. 1 Like 1 Share
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Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by qualityovenbake(m): 11:34am On Aug 07, 2017 |
following |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by sod09(m): 11:35am On Aug 07, 2017 |
its explorer again |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Perge(m): 11:37am On Aug 07, 2017 |
Let's go |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 11:42am On Aug 07, 2017 |
Aftermath. 1 Like
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Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by kingreign(m): 11:45am On Aug 07, 2017 |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Wordsmith01: 11:50am On Aug 07, 2017 |
interesting and education |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by medolab90(m): 12:10pm On Aug 07, 2017 |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by henryobinna(m): 12:14pm On Aug 07, 2017 |
the exploring man, nice one and following |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by calberian: 12:30pm On Aug 07, 2017 |
People are investing so much to discover the truths in these things. And monetise the findings. We are satisfied with being the purveyors. One chilled bottle of zobo for you, Explorers 3 Likes |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by okabe(m): 12:35pm On Aug 07, 2017 |
odieshi aburo make ebe atuu bomb or tear-gas for that matter ![]() |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by clarocuzioo(m): 12:54pm On Aug 07, 2017 |
Really insightful, front page material, Mods please do the needful |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by ajalawole(m): 1:03pm On Aug 07, 2017 |
Explorer, am sure oga seun is paying u seriously, if not kindly hold him to ransom ![]() ![]() ![]() 1 Like |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 7:53pm On Aug 07, 2017 |
ajalawole: Smiles....There are cool guys around bro. |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by SirMichael1: 8:17pm On Aug 07, 2017 |
ajalawole: How can you generalize and put him in the lime light as the only sensible Nairalander?? What happened to your senses? Was it carted away with?. Well.. According to your post, you knowingly called yourself senseless and and are right because only a senseless person would make such statement 9 Likes 4 Shares |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Nobody: 8:33pm On Aug 07, 2017 |
Explorers: So even 16 inches of bullet proof glass can't protect one from an RPG, interesting |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by SirMichael1: 8:43pm On Aug 07, 2017 |
Explorers: Explorers, how then was/is the beast (ex us president's armoured vehicle) able to withstand a RPG? Because it was stated in its specification |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 9:03pm On Aug 07, 2017 |
SirMichael1: Not ex, US President official vehicle. It's stated that the beast's armour is about 5-8inches thick. They said it can withstand a direct tank shell or RPGs. But ive not seen the test. I don't think there will be chance to launch such attack on the vehicle, because when is moving, they secure it up to a mile in radius. 1 Share
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Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Cunninlinguist: 9:26pm On Aug 07, 2017 |
ajalawole:Bad choice of words bro. 2 Likes |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by tk4rd: 10:12pm On Aug 07, 2017 |
Hmmmm. Don't ever play with RPGs. |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by enomakos(m): 10:41pm On Aug 07, 2017 |
educative |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by SirMichael1: 11:31pm On Aug 07, 2017 |
Explorers: Too imagine that even the tires too are anti-RPG attacks is simply overwhelming. I read that the weight of the vehicle is very much. Can it also withstand a rocket launcher attack? Thanks though |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Kakamorufu(m): 8:54am On Aug 08, 2017 |
ajalawole:don't say that bro. there are lots of sensible members here. calm down and observe |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by ajalawole(m): 9:04am On Aug 08, 2017 |
Kakamorufu:thanks bro. But here on this forum is a tag of war. They will libel u either an afonje, ipod, pig and ediot. 1 Like |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by quiverfull(m): 9:39am On Aug 08, 2017 |
It was posts like this that got me attracted to Nairaland in the first place. @Op, could you please explain how the Americans "secure the surrounding" areas around the beast? 1 Like |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by phensbassey: 10:37am On Aug 08, 2017 |
Explorers:I also read that the driver is trained to evade an attack if such occurs.. |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by PBeni(m): 1:17pm On Aug 08, 2017 |
@Explorers. Do you have a blog? |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Explorers(m): 3:00pm On Aug 08, 2017 |
phensbassey: There is a driving academy for the beast, where driver will be trained to dodge, maneuver, make sharp turns handle the speed and length of the vehicle incase of attack or chase. |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by Kakamorufu(m): 7:04pm On Aug 08, 2017 |
ajalawole:it's those shallow minded people. it's better one look them and move on 1 Like |
Re: The Difference Between A Normal Glass And Bulletproof Glass(Photos) by k199192: 10:31pm On Aug 08, 2017 |
Explorers:oga Explorers, is it that you could not find any photo of trump coming out of the beast or you just love Obama. . this is 2017 o... dia is God o... |
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