[Merged] iPhone 4 Glass Body, Durability, and Drop Test Results

Discussion in 'iPhone' started by ogdogg, Jun 7, 2010.

  1. ogdogg macrumors 6502

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    Arizona
    #1
    I read that the glass is 30x stronger than plastic (or something along those lines). Is that new or is this the same glass as the 3gs? It almost made it sound like a new glass type, but they didn't really say much about it.
     
  2. kryten3000 macrumors regular

    kryten3000

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    #2
    It's probably some space age material that was based on some of the newer ceramics/glass developed by NASA. :cool:
     
  3. tasandkrs macrumors member

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    Feb 24, 2008
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    Cleveland, Ohio
    #3
    The video on Apple's website states it is new for the iPhone 4. They show a demo of it bending and not breaking.
     
  4. Hellishness macrumors 65816

    Hellishness

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    #4
    that doesn't necessarily mean that it will be any better in a drop, right?
     
  5. Chupa Chupa macrumors G5

    Chupa Chupa

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    Jul 16, 2002
    #5
    There are grade of glass just like there are grade of plastic. Some glass is stronger than plastic, some plastic is stronger than glass. There is no "30x rule." For example Lexan is 200x time stronger than glass of the same thickness.

    Most industrial glass, like safety glass and Gorilla glass is actually glass fortified with plastic. It's not pure glass.
     
  6. guru_ck macrumors 6502

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  7. vizkiz macrumors 6502a

    vizkiz

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    Jul 22, 2008
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    Long Island, NY
    #7
    It says on Apple's iPhone website that the new glass is the same glass used on the windshields of helicopters and high-speed trains.
     

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  8. Diode macrumors 68020

    Diode

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    Washington DC
    #8
    Yea but I wonder if it can still take a drop to concrete at waist height .....
     
  9. TRAG macrumors 6502

    TRAG

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    Jan 6, 2009
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    Louisiana, USA
    #10
    Of course it'll blend! :D I just know he'll blend it on launch day.
     
  10. i-John macrumors 6502a

    i-John

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    #11
    iPhone 5 will be able to fly and travel at 200mph then. :D
     
  11. neiltc13 macrumors 68040

    neiltc13

    Joined:
    May 27, 2006
    #12
    Stronger can have so many meanings. The Apple demo appears to illustrate its strength when subjected to forces that cause it to bend. However, that's entirely different to the force of hitting it head on with a stone or dropping it (and causing only maybe a corner) to hit the ground.

    In the end, it's still glass. It will chip and break - I'd love to see how these raised glass edges hold up to impact.
     
  12. doubleatheman macrumors 6502a

    doubleatheman

    Joined:
    May 27, 2009
    #13
    The glass is STRONGER, and more FLEXIBLE...

    neither of those words excite me...

    I want "SHOCK PROOF" "SHATTER RESISTANT"
     
  13. gravityfall macrumors member

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    Jun 7, 2010
    #14
    I hope it is stronger as I cracked the screen on my 3Gs one week after I got it.
     
  14. -aggie- macrumors P6

    -aggie-

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    Where bunnies are welcome.
    #15
    Tensile strength has nothing to do with hardness, so no, it means nothing.
     
  15. Gamst macrumors regular

    Gamst

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    Manchester, U.K.
    #16
    Tensile strength is linked in with hardness though, well it is in metals. They are different properties though, but something that is harder will generally have a higher tensile strength, but softer will have more give. Harder isn't always better(oo-er!) as it is generally more brittle.

    More flexible, would surely mean that is less fragile, including dropping? I imagine it'll take absorb more force?

    I'm guessing we'll see plenty of videos of drop tests soon :D
     
  16. Chupa Chupa macrumors G5

    Chupa Chupa

    Joined:
    Jul 16, 2002
    #17
    I don't know if the iPhone 4 uses the Gorilla Glass brand but surely it's similar if not. Here is a demo
     
  17. itsjared macrumors regular

    itsjared

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    Jun 11, 2009
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    Dallas
    #18
    Where's your $29 "Bumper"??
     
  18. ogdogg thread starter macrumors 6502

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    Jun 26, 2008
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    Arizona
    #19
    Awesome. I've always been a bit paranoid about my phone although it has survived a few drops. Perhaps now with the new bumper and glass, I'll stop seeing shattered iPhones in my nightmares.
     
  19. malnar macrumors 6502a

    malnar

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    Aug 20, 2008
    #20
  20. allonym macrumors regular

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    Jun 12, 2009
    #21
  21. ct2k7 macrumors 603

    ct2k7

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    Aug 29, 2008
    Location:
    London or Florida
    #22
    :eek: Zeolite glass :eek:

    Right this glass:

    Someone give me the tensile stress and strain values, so I can work out the Young's modulus.
     
  22. neiltc13 macrumors 68040

    neiltc13

    Joined:
    May 27, 2006
    #23
    The front and back are covered by single pieces of glass. The edges of these pieces are exposed above the metal rim around the device.
     
  23. thelatinist macrumors 603

    thelatinist

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    Aug 15, 2009
    Location:
    Connecticut, USA
    #24
    Those edges appear to be enclosed in some sort of elastomeric material, just like they are on the iPad and unibody MacBook.
     
  24. cowsrus macrumors 6502

    Joined:
    Mar 17, 2008
    #25
    it's also recyclable
     

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