How strong is that glass?

[dontwalkhand]

30x stronger than plastic?

Do you guys think it will be more scratch resistant than the 3GS glass?

I think I am sold on this tech, and it would be cool to see it in action. I do not plan to get a case for this, simply because, it looks cool the way it is, without a case.

 

[elephunkman]

I think they're marketing it as stronger than the current glass, so I hope it will be stronger.

 

[Julien]

30x stronger than plastic?...

Yes, it's 30 times stronger than Saran Wrap.

 

[ct2k7]

Before we start this thread, I think it'll be useful if we all know what strength and hardness means.

stiff
if it is difficult to stretch or bend the material (e.g. a metal sheet is stiffer than a polythene
sheet of the same dimensions). The stiffness is indicated by the Young modulus.

hard
if it is difficult to dent the surface of the material (e.g. a steel knife is much harder than a plastic knife). Hardness is tested by machines that indent the surface. Many ceramics are very hard.

brittle
if it breaks by snapping cleanly. The brittleness of glass is a consequence of defects
such as fine surface cracks, which propagate easily through the material.

tough
if the material does not break by snapping cleanly. A tough material is resistant to the
propagation of cracks. Toughness is the opposite of brittleness. Metals are tough, and
break by plastic flow. There is no one simple measure of toughness, but a tough material will dissipate a large amount of energy per unit area of new fracture surface.

 

[elephunkman]

Yes, it's 30 times stronger than Saran Wrap.

HAHAHAHAHA.

 

[Blorzoga]

Who knows, maybe some idiot will do a smash-an-iphone4 video on launch day and post it on YouTube like they did with the iPad.

 

[GreggM3]

I hope it's more scratch resistant and stronger! I had a 3GS fall from hip height to a gravel driveway in a Seidio hard case and the screen cracked. BTW it landed face up. And as far as scratches, I have a few on my screen.

 

[ScubaCinci]

https://forums.macrumors.com/threads/941032/

https://forums.macrumors.com/threads/939094/

 

[jpefjr]

To me the question isn't "how tough is it" but "will it blend". And I'm fairly certain we'll be finding out that answer to that real soon now.

 

[Gigzz]

It's more resistant to bending (who bends their phone?) but not resistant to smashing at all.don't drop it.

 

[foot56]

The iPhone is made of aluminosilicate glass. Apple says it's "chemically strengthened to be 20 times stiffer and 30 times harder than plastic" and it's "ultradurable and more scratch resistant than ever." Still not enough to survive a 3.5-foot drop.

That's what the people at iFixyouri did: Test Apple's claims by dropping the iPhone 4 from 3.5 feet, the distance you drop a phone when you're standing up. They say their iPhone—which they claim is real, but without any internal components—survived the first two shocks.

On the third one, however, the display was completely shattered after a loud pop. That's a sound I'm personally familiar with: My current iPhone 3G's display has broken two times in the same way.

It's not surprising that the Cupertino company is releasing a protective case of their own called the "bumper". Because now, unlike older iPhones where there's one side that has a display and one side that's plastic or aluminum—where you don't care if it gets messed up or cracked—now both sides are glass. Which means both sides are susceptible to breaking. My iPhone was dropped on its display face two times and broke two times. I lost count on the times it dropped on its back.

 

[reaborg]

copy much?

@foot56, unless you are Jesus Diaz, I detect a plagiarism . Seems you have copied the article word for word:

http://gizmodo.com/5559977/first-broken-iphone-4-shows-new-glass-isnt-that-resistant

 

[foot56]

@foot56, unless you are Jesus Diaz, I detect a plagiarism . Seems you have copied the article word for word:

http://gizmodo.com/5559977/first-broken-iphone-4-shows-new-glass-isnt-that-resistant

I was answering the guys question.. I would rather not use a bibliography and footnotes when posting in a forum lol. However, I might be Jesus.

 

[Irish Rose]

Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1_3 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7E18 Safari/528.16)

To me the question isn't "how tough is it" but "will it blend". And I'm fairly certain we'll be finding out that answer to that real soon now.

Haha, I love watching those videos!

 

[JZ Wire]

@foot56, unless you are Jesus Diaz, I detect a plagiarism . Seems you have copied the article word for word:

http://gizmodo.com/5559977/first-broken-iphone-4-shows-new-glass-isnt-that-resistant

LOL. Anyway, in my experience, just a little TLC and common sense should keep your phone in good shape. I never used a case for my 3G in a long while but after dropping it several times I realized that I'd rather cover it up a bit than having the phone break.
I've never shattered the glass but I do have a few small cracks in the plastic. While I do believe that the new glass will be even stronger, I'm still going to buy the new bumper case. Eventhough the case will cover some of the iPhones beautiful design, we are still human and prone to mistakes.

 

[Jeffrosproto]

*Snip*

You have to keep in mind that this phone had no internal components, which add to the durability and rigidity of the phones structure.

 

[Iphone3gs]

Young modulus

Young Modulus defined as stress over strain.

Were stress = Force/ Area
Strain= length / extension

 

[Gigzz]

You have to keep in mind that this phone had no internal components, which add to the durability and rigidity of the phones structure.

Ummm no. The guts will add weight and velocity making the likelihood of a smash more prevalent.

 

[ct2k7]

Young Modulus defined as stress over strain.

Were stress = Force/ Area
Strain= length / extension

I've just got away from Physics, I don't need more.

 

[Consultant]

Ummm no. The guts will add weight and velocity making the likelihood of a smash more prevalent.

Scientific knowledge fail.

Perhaps you didn't have high school physics yet?

http://www.physics.ucla.edu/demoweb...ravitational_acceleration/drop_two_balls.html

 

[gloss]

Scientific knowledge fail.

Perhaps you didn't have high school physics yet?

http://www.physics.ucla.edu/demoweb...ravitational_acceleration/drop_two_balls.html

Well, they don't change the acceleration, but, by increasing the mass, they do affect the force with which the phone will impact the ground.

 

[rmwhite]

Young Modulus defined as stress over strain.

Were stress = Force/ Area
Strain= length / extension

Strain = change in length / intial length

 

[Captainobvvious]

The iPhone is made of aluminosilicate glass. Apple says it's "chemically strengthened to be 20 times stiffer and 30 times harder than plastic" and it's "ultradurable and more scratch resistant than ever." Still not enough to survive a 3.5-foot drop.

That's what the people at iFixyouri did: Test Apple's claims by dropping the iPhone 4 from 3.5 feet, the distance you drop a phone when you're standing up. They say their iPhone—which they claim is real, but without any internal components—survived the first two shocks.

On the third one, however, the display was completely shattered after a loud pop. That's a sound I'm personally familiar with: My current iPhone 3G's display has broken two times in the same way.

It's not surprising that the Cupertino company is releasing a protective case of their own called the "bumper". Because now, unlike older iPhones where there's one side that has a display and one side that's plastic or aluminum—where you don't care if it gets messed up or cracked—now both sides are glass. Which means both sides are susceptible to breaking. My iPhone was dropped on its display face two times and broke two times. I lost count on the times it dropped on its back.

Give me a break, that test was ridiculous and completely bogus.

We have no details of the test, no pictures or video of the test taking place just pictures of the smashed phone that could have very well been photoshopped or even smashed with a hammer.

Second it was a phone SHELL. It was a hollow case with no internal components, not even buttons making it MUCH MUCH more easily broken because there is nothing to share the force of the shock or to support the screen.

Bogus testing should be ignored. I do look forward to seeing real testing done after launch.

 

[Krevnik]

Well, they don't change the acceleration, but, by increasing the mass, they do affect the force with which the phone will impact the ground.

At the same time, we have to consider the amount of extra force compared to the amount of extra force the guts allow to be dissipated.

 

[kdarling]

30x stronger than plastic?

Always beware salesmen spouting numbers.

Seriously. People should avoid being impressed by numbers, no matter how cool they sound, until they know exactly what they mean.

What kind of plastic? Stronger in what way? Heck, someone noted that even your fingernails are that much stronger than some plastics... but will still crack and break.

Do you guys think it will be more scratch resistant than the 3GS glass?

If it's like Corning Gorilla Glass (and it sounds like that's what it is), then yes. Especially since previous iPhones used optical quality glass, which is designed for clarity, not scratch resistance.

As for break tests, no one can test all the different scenarios. The point is, if it hits just right, it's going to break. That's no doubt one reason why Apple is pushing the bumpers.