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cakbar

macrumors regular
Original poster
Apr 30, 2008
126
1
Does anyone have any idea/guess how much pressure the iPad screen can withstand before cracking? Obviously I'm not concerned about finger pressure, but what about a small pet walking across it or jumping on it, or a baby/child sitting/walking on it?
 
My 240lb brother in law sat on mine for a 30 minute car ride about 3 days after I bought it. No issues. The biggest surprise was that he never realized he was sitting on the iPad.
 
Does anyone have any idea/guess how much pressure the iPad screen can withstand before cracking? Obviously I'm not concerned about finger pressure, but what about a small pet walking across it or jumping on it, or a baby/child sitting/walking on it?

The screen seems quite tough but I won't be testing any of these scenarios for you. As a guess, you might get away with it, but I don't think the iPad was designed with these abuses in mind. Keep it somewhere safe.
 
Does anyone have any idea/guess how much pressure the iPad screen can withstand before cracking? Obviously I'm not concerned about finger pressure, but what about a small pet walking across it or jumping on it, or a baby/child sitting/walking on it?

According to the MacWorld iPad stress test:

You’ll also be happy to know that an average-weight adult can sit on the iPad without inflicting any damage. It just isn’t very comfortable.

http://www.macworld.com/article/150418/2010/04/ipad_stress.html
 
My 240lb brother in law sat on mine for a 30 minute car ride about 3 days after I bought it. No issues. The biggest surprise was that he never realized he was sitting on the iPad.

So it is also comfortable along with being awesome. :D
 
There was a waste of a thread around here earlier today about some guys using an iPad as a skateboard which of course involved destroying the device. I was surprised to see the screen cracked as soon as the first doofus stepped on it. I had expected they would have to abuse it a bit more (like the bozos with the baseball bat) to get it to crack.

I would not assume you can sit on your iPad unless you have $500-829 lying around you don't care about losing. Perhaps the local casino would offer better odds of winning than sitting on your iPad (which isn't saying much). It isn't designed to sit on and the guy who wrote that forum post about his 240 pound brother isn't going to come over to your house and pay to replace your iPad after you break it.
 
Why not pick up all 1.5 lbs. of it and put it in a place that the kids or animals can't step on it? I learned with my first kid that they will get into whatever they can, so put it in a place that they can't.

Not hard at all.
 
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I left the iPad on a granite countertop for a hot second, and my sister's bf comes in and chats for a little. I wanted to look something up, and started looking around for the iPad. After a good minute of looking around the kitchen, my sister's bf realized he was leaning on the countertop with his arms folded right on top of my iPad. First thought, "FML!", but it was unscathed. He's maybe close to 200lbs, obviously not all of the weight on it, but still a good amount of pressure on the ipad. I was more concerned about the shape of the casing, and not so much the screen. No harm, no foul. Guess the cold granite felt the same as the iPad glass, that he didn't realize.
 
This depends greatly on the kind of pressure applied. Think of the old bed of nails trick - the nails don't hurt because they're close together and spread the weight around. Less nails spread further apart would be a bloody, painful mess. Pressure points. A guy sitting on the Ipad is spreading his weight across the whole surface of the screen while someone standing on the screen is just a couple of high-pressure points.

I'm still surprised the screen can withstand the weight of someone sitting on it so well, but not at all surprised the screen would shatter when someone stands on it. That's why I wanted a hard-shell case that covers the screen to protect it from impacts of things in, say, a bag. You never know when you might stumble and fall in such a way that your power brick lands right on the screen, and that's exactly the type of pressure that WILL destroy the screen. All these cases that protect only the back, I don't get it. Protect the screen!
 
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I woke up one night and my cat was standing on the thing. I swatted him off and it's fine. This was before I got my case.
My cat knew exactly what he was doing I'm sure of it. ;)
Little bastard
 
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If someone can give me the stress and strain values, then I can work out the Young's Modulus of the glass.
 
My question of pressure on it is if my ipad (6th gen 2018) can be in it's smart case in my backpack or file folder that I carry to work. There isn't any pens or anything, just paper and stuff.. I don't want stress to beon the screen but I would like help to know.
IF this thread is even still open. Thank you.
 
My question of pressure on it is if my ipad (6th gen 2018) can be in it's smart case in my backpack or file folder that I carry to work. There isn't any pens or anything, just paper and stuff.. I don't want stress to beon the screen but I would like help to know.
IF this thread is even still open. Thank you.
Yes, you should be fine. I carry my Air 2 around in my bag every day with just a Smart Cover, and it has been perfectly fine. So long as you’re not squashing anything against it that makes a single, small point of contact with the screen you’ll be fine.

9C286C60-11D0-432B-BBE2-567D173D9306.jpeg
Im sure the good people of 2010 would be thrilled to know that we are still having the same debates a decade later :D
 
My 2 yr old daughter took my Pencil and started whacking it on my new Mini 5 screen. I freaked out, of course, grabbed the Pencil and found nothing dented or cracked on the screen. My Pencil tip, though, was noticeably deformed. In this instance, the glass was stronger than the Pencil tip. That was a few months ago and my Mini 5 has not had any dead pixels or any problems!
 
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