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OT: Ikea drinking glass tested in hydraulic press

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  • OT: Ikea drinking glass tested in hydraulic press

    Would have never guessed how much compression a simple Ikea drinking glass can handle. 22 (metric) tons or 24 short ton!

    https://youtu.be/3B2RIg7ildU?t=137

    Interesting also that the glass shrapnels instantly even on 6000fps high speed camera too fast to see any fault initiation site.

    Remember still: don't use drinking glasses when press-fitting bearings!
    Location: Helsinki, Finland, Europe

  • #2
    Note to self.... stop using my big hydraulic press to pass around the drinks at parties....

    With the tremendous stress held in that first glass at that amount of pressure I'm not surprised that it just let go like that. Still, impressive as all blazes!

    I'm pretty sure that this Ikea glass is tempered glass. It has the look of the "shatter resistant" glasses I've seen in the past. I'm guessing that makes a difference in how it held up and the nature of the shards when it finally did let go?
    Chilliwack BC, Canada

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    • #3
      I wonder if the first glass broke of structural failure or simply because it had uneven metal high spots connecting to it, would be nice to see the same test with something like thick gasket paper as a layer between or maybe soft aluminum if the gasket paper would not hold up and just get cut...

      might get more tons on it before it pops.

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      • #4
        Shortly after I moved out on my own I was in Ikea checking out when a lady bumped into an isle display and knocked a bunch of those glasses off. They all dropped from about waist height and bounced across the floor. Not one broke. I went right over and bought a flat of them . Still have them, they're tough glasses.
        Last edited by Dan Dubeau; 10-08-2019, 04:33 PM.

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        • #5
          Originally posted by A.K. Boomer View Post
          I wonder if the first glass broke of structural failure or simply because it had uneven metal high spots connecting to it, would be nice to see the same test with something like thick gasket paper as a layer between or maybe soft aluminum if the gasket paper would not hold up and just get cut...

          might get more tons on it before it pops.
          I was thinking of the same initially but then saw another video where they crushed prince ruberts(sp?) drops and they made huge dents in the steel plates in the process.
          22 tons on narrow rim like that glass and it was probably already embedding itself in the steel all around and flattening any peaks.
          Location: Helsinki, Finland, Europe

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          • #6
            His comment did mention that the glass made a mark in the anvil. And I was pretty sure I could see a depression occurring as the pressure built up.

            On the other hand the other glasses with the rounded bottoms broke pretty rapidly where the load passed at a higher angle through the glass. And a lot of the other glasses and ceramic mugs could be seen tipping a little as the load first came on. So that likely led to those items failing at lower pressure.

            It's like standing on the pop/beer can trick. If you can do it carefully and evenly enough an empty can will hold up a 200lb person.... I know because I've done it. But any unevenness in the initial standing up onto the can or the slightest dent in the side and it collapses.

            The other part of the trick is a helper taps the side of the can lightly with a pencil or something like that and the slight touch causes the sudden collapse in the aluminium can's version of that Ikea tumbler blowing up.
            Chilliwack BC, Canada

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            • #7
              Originally posted by Dan Dubeau View Post
              Shortly after I moved out on my own I was in Ikea checking out when a lady bumped into an isle display and knocked a bunch of those glasses off. They all dropped from about waist height and bounced across the floor. Not one broke. I went right over and bought a flat of them . Still have them, they're tough glasses.
              Funny story lol she probably was the sales rep. and it's one of their routines lol

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              • #8
                Originally posted by A.K. Boomer View Post
                Funny story lol she probably was the sales rep. and it's one of their routines lol
                I've thought that too. Her only job was to come around every hour and bump a couple glasses onto the floor lol.

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                • #9
                  Perfect for pounding shots of mercury.

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                  • #10
                    Originally posted by A.K. Boomer View Post
                    I wonder if the first glass broke of structural failure or simply because it had uneven metal high spots connecting to it, would be nice to see the same test with something like thick gasket paper as a layer between or maybe soft aluminum if the gasket paper would not hold up and just get cut...

                    might get more tons on it before it pops.
                    This, If the press had a self adjusting pad like the pad on a C-clamp on the top along with a dense cushion like you say,maybe HDPE or something the result would probably be even higher tonnage.

                    I think the uneven loading explains the variance in the first two results even though the glasses are virtually identical in shape.
                    I just need one more tool,just one!

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                    • #11
                      too bad Ikea does not make replacement visible gas pump cylinders. at their pricing levels.

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                      • #12
                        After busting up a combination of rocks, bricks, cinderblocks, and concrete over the last couple of days, I found the compression failure of bricks and concrete quite interesting:

                        http://pauleschoen.com/pix/PM08_P76_P54.png
                        Paul , P S Technology, Inc. and MrTibbs
                        USA Maryland 21030

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                        • #13
                          Originally posted by wierdscience View Post
                          This, If the press had a self adjusting pad like the pad on a C-clamp on the top along with a dense cushion like you say,maybe HDPE or something the result would probably be even higher tonnage.

                          I think the uneven loading explains the variance in the first two results even though the glasses are virtually identical in shape.
                          Cushion would be good but suitable material at this force is something else than HDPE. Like steel for example..
                          22 tons to rim with maybe about 1sqin surface is nothing but a hole punch for HDPE.
                          48000 lbs per one square inch is above yield strength of most ordinary steel grades!

                          Those weaker cups etc would have probably benefited from softer contact patch.


                          ---
                          Wooden ikea chair/stool was also able to handle nearly 10 tons
                          Location: Helsinki, Finland, Europe

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                          • #14
                            Originally posted by MattiJ View Post
                            Cushion would be good but suitable material at this force is something else than HDPE. Like steel for example..
                            22 tons to rim with maybe about 1sqin surface is nothing but a hole punch for HDPE.
                            48000 lbs per one square inch is above yield strength of most ordinary steel grades!

                            Those weaker cups etc would have probably benefited from softer contact patch.


                            ---
                            Wooden ikea chair/stool was also able to handle nearly 10 tons
                            The HDPE pad would go under the bottom and only need to reduce point loading. If the bottom of the glass was 3-1/2" round that's 48,000/9.62 inches area= 4989 psi. HDPE will handle 6500 psi briefly before it starts to extrude.

                            If an Ikea chair can handle 10 tons, just imagine what a good chair could hold
                            Last edited by wierdscience; 10-09-2019, 02:18 AM.
                            I just need one more tool,just one!

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                            • #15
                              At a place I worked, we used to sometimes go to a nearby tavern for lunch. We didn't go there for the classy d├ęcor, like the sets of knife, fork and spoon wrapped in paper napkin standing in the scratched and dull tempered drinking glass in the center of the table.

                              We sat down, ordered and were served. A latecomer sat down, the waiter took his order and came back with more cutlery and plopped it with a flourish into the glass.

                              The glass didn't break. It exploded, imploded or whatever it is that tempered drinking glasses do when they retire from service, showering us and our freshly served plates with small, chunky, almost identically sized shards of glass.
                              Last edited by cameron; 10-09-2019, 11:30 AM.

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