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Golf Balls, not quite as hard as once thought

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Golf Balls, not quite as hard as once thought

Unread postAuthor: Lockednloaded » Mon Jun 07, 2010 6:13 pm

[youtube]http://www.youtube.com/watch?v=aMqM13EUSKw&feature=related[/youtube]
This is a normal golf ball hitting a steel plate, Amazing how much these things warp. its an insanely high speed, high quality camera, but still really cool
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Unread postAuthor: Gun Freak » Mon Jun 07, 2010 6:47 pm

Holy crap, thats awsome.... Seeing how much damage our golf ball cannons inflict on our targets, imagine how much damage a projectile the same size and weight of a golf ball but harder, would do?
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Unread postAuthor: Technician1002 » Mon Jun 07, 2010 7:11 pm

Is there any data on the velocity of the impact? I'm looking at using golf balls as part of a bumper in a future higher energy design.

In searching related videos, that ball appears to have been in the 150 MPH speed shot at 70,000 frames/sec. A more normal speed impact looks like this. It has much less ball distortion.
[youtube]http://www.youtube.com/watch?v=XJycozid-wY[/youtube]
150 MPH is a little faster than your average drive.
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Last edited by Technician1002 on Mon Jun 07, 2010 7:18 pm, edited 1 time in total.
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Unread postAuthor: deathbyDWV » Mon Jun 07, 2010 7:13 pm

I'm guessing this isn't your video but I'm not sure. If it isn't what source it it from?

To me it doesn't seem real... Think about how much it looks like a ball of water. It seems like a golf ball wouldn't look that liquid like. It would be more springy than flow-y...
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Unread postAuthor: Lockednloaded » Mon Jun 07, 2010 7:18 pm

Its not my video, but it was shot at 70,000 fps, and the ball was going 150 mph
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Unread postAuthor: deathbyDWV » Mon Jun 07, 2010 7:26 pm

150 mph isn't even as fast as a paintball gun shoots. I just think it's really unlikely that it's a real golf ball but I could very well be mistaken.
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Unread postAuthor: Gun Freak » Mon Jun 07, 2010 7:28 pm

DeathbyDWV, I know you have a HSC so why don't you try getting a video of a GB impact? I wouldn't be as fast but if you're lucky you may see the distortion of the golf ball....
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Unread postAuthor: Lockednloaded » Mon Jun 07, 2010 7:31 pm

well 70,000 frames per second is an pretty high quality camera, this might not even be visable to consumer video cameras
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Unread postAuthor: Gun Freak » Mon Jun 07, 2010 7:47 pm

Yeah you're right, but if you're lucky you may get a frame where the ball is getting smashed against the wall...
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Unread postAuthor: Technician1002 » Mon Jun 07, 2010 11:37 pm

I don't think a normal golf ball can take that much distortion. Here is a video of a golf ball on a hydaulic press. It pops with less distortion shown in the video.
[youtube]http://www.youtube.com/watch?v=Uk_rZI9tOFc[/youtube]
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Unread postAuthor: spudtyrrant » Tue Jun 08, 2010 7:06 am

Technician1002 wrote:I don't think a normal golf ball can take that much distortion. Here is a video of a golf ball on a hydaulic press. It pops with less distortion shown in the video.
that may be a result of the press having a smaller diameter than the golf ball and not letting it "splay" out.
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Unread postAuthor: psycix » Tue Jun 08, 2010 8:39 am

I think the ball is indeed softer than a normal ball, and I think it has a liquid core.
Are you sure that 150 mph is correct?
Maybe someone could count frames and see how fast the ball was really going, assuming an average golfball size.
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Unread postAuthor: qwerty » Tue Jun 08, 2010 9:50 am

Yeah that can't be a regulation golfball, i cut open one with a hacksaw to see what was inside and i found a rock solid, plastic type thing that smelt strongly of chemicals. But i have taken others apart to find the have a bouncy ball wrapped in about 10m of thin rubber band. (I like throwing them and watching them unravel in the air :)

Also, on a program called "How It's Made" it shows how they are made which is pretty cool.

To me it looks like a rubber casing with a liquid inside, as this acts in the same way as water balloons do when the are dropped but do not pop.
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Unread postAuthor: Ragnarok » Tue Jun 08, 2010 12:09 pm

Technician1002 wrote:I don't think a normal golf ball can take that much distortion.

At high speeds, things can react very differently.

If you will, take a grape and a piece of corrugated cardboard. Press the grape into the cardboard, and the grape'll turn into a sticky mess. Fire it at the cardboard at a couple of hundred miles an hour and it'll put a hole through the cardboard. Crushing and an impact are not equivalent.

As far as that golfball footage, it's BBC sports footage, so I'd be surprised if it weren't a regulation golfball. The BBC are unlikely to have much reason to film non-regulation golfballs.
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Last edited by Ragnarok on Fri Sep 10, 2010 7:46 pm, edited 1 time in total.
Does that thing kinda look like a big cat to you?
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Unread postAuthor: POLAND_SPUD » Tue Jun 08, 2010 2:26 pm

it reminds me of the jelly scope
[youtube]http://www.youtube.com/watch?v=s5pVya7eask[/youtube]
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