Thread: Most Powerful FIRST Team created T-Shirt Cannon
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Unread 22-05-2010, 11:51
Ian Curtis Ian Curtis is offline
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Re: Most Powerful FIRST Team created T-Shirt Cannon
Quote:
Originally Posted by Chris is me View Post
PVC is not rated for air pressure, only liquid pressure. PVC can catastrophically fail at 80PSI, causing serious injury.

Those aren't air tests. Those are liquid tests. "Please do your research".
What is the difference between gas pressure and liquid pressure? If they are both Force/Area, how do they make the material fail in one case, and not in the other? Does it have something to do with the rate of expansion of a gas vs. a liquid?

Does it specify that they are liquid tests, or does everyone in the thermoplastics business just know that gas pressure is not liquid pressure?

I don't want air cannons blowing up in my face.
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Last edited by Ian Curtis : 22-05-2010 at 11:54.