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barrel exploded!

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barrel exploded!

Unread postAuthor: frankrede » Wed Sep 03, 2008 5:26 pm

Sgorts mauler valve proved to be too powerful and completely destroyed my tennis ball barrel.
The barrel has a little bit of yellow discoloration from the sun and that is what I say caused it.

The part that interests me most is how it exploded.
the pieces broke apart in a spiral.
and all the pieces are razor sharp, and I managed not to even get a scratch+the tennis ball went through the mdf board I shot at


now heres some pics
<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=1220479844.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/1220479844.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=1220479868.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/1220479868.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=1220479900.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/1220479900.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=1220479908.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/1220479908.jpg" border="0" alt="Photobucket"></a>

<a href="http://s30.photobucket.com/albums/c325/redensekjf/?action=view&current=1220479933.jpg" target="_blank"><img src="http://i30.photobucket.com/albums/c325/redensekjf/1220479933.jpg" border="0" alt="Photobucket"></a>
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Unread postAuthor: MaxuS the 2nd » Wed Sep 03, 2008 5:30 pm

Dang..
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Unread postAuthor: far_cry » Wed Sep 03, 2008 5:33 pm

and now you have a knife
thats deadly
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Unread postAuthor: Fnord » Wed Sep 03, 2008 5:38 pm

Your digital camera must be really good, judging by the fact that renders HDR lighting :)


...
If that yellow outside coloring is really sun damage, it is really, REALLY bad. How long has it been sitting in the sun for? I've never seen anything quite that bad before.
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Last edited by Fnord on Wed Sep 03, 2008 5:39 pm, edited 1 time in total.
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Unread postAuthor: DYI » Wed Sep 03, 2008 5:38 pm

What are those, pictures of ghosts you saw in your back yard? :lol:

On a more serious note, that's quite an interesting failure you've got there. The propagation patterns might have something to do with the way the tennis ball moves down the barrel, although I don't profess to be an expert on PVC failures.

Good job on not getting injured, but this kind of thing is why the manufacturers warn against using weak, brittle pipes with compressed gases.
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Unread postAuthor: frankrede » Wed Sep 03, 2008 6:03 pm

_Fnord wrote:Your digital camera must be really good, judging by the fact that renders HDR lighting :)


...
If that yellow outside coloring is really sun damage, it is really, REALLY bad. How long has it been sitting in the sun for? I've never seen anything quite that bad before.
Lol, its a camera phone.
The yellow looks alot worse in the picture, its a lot less dramatic.

I
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Unread postAuthor: potatoflinger » Wed Sep 03, 2008 7:12 pm

It could also have something to do with tennis balls fitting very tightly in 2.5" pipe. (I'm assuming that it was 2.5", I don't think a 3" would have burst with a tennis ball)
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 04, 2008 12:17 am

phoar! glad you weren't hurt :shock:
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Unread postAuthor: Pilgrimman » Thu Sep 04, 2008 12:37 am

It might be a combination of the sun damage and a flexing barrel. It looks like it, anyway... Just glad no one was hurt!
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Unread postAuthor: SpudMonster » Thu Sep 04, 2008 1:10 am

It's radioactive. Don't worry, it's just fallout from the Nevada Test Site. Nothing to worry about. In fact, the radiation probably superheated the air in the barrel causing it to expand, overpressurize the barrel, and fail.
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Unread postAuthor: frankrede » Thu Sep 04, 2008 2:05 am

jackssmirkingrevenge wrote:phoar! glad you weren't hurt :shock:
Thanks!
It was quite fun, kind of gave me an adrenaline rush after I realized I survived and wasn't impaled by a piece of pvc.
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Unread postAuthor: starman » Thu Sep 04, 2008 10:30 am

Some of those photos make the pieces look like they have died and gone to heaven, with their angelic glow...:wink:

I'm glad you didn't get injured.
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zow!

Unread postAuthor: Solar » Thu Sep 04, 2008 11:23 am

The remains remind me of some kind of wicked flamberge blade. All wavy and lethal.

http://images.search.yahoo.com/images/v ... =15ik8f5o1[url][/url]
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Unread postAuthor: jimmy101 » Thu Sep 04, 2008 11:31 am

frankrede: glad you've still got all your body parts (and no new parts).

What was the chamber pressure?
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Unread postAuthor: frankrede » Thu Sep 04, 2008 5:57 pm

chamber pressure 100 psi
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