Compositepro,
thanks for your input, i agree with you it would be much better to test with gas, but due to safety reasons and simplicity at the moment i still tend to switch to water.
I also changed the initial geometry of the specimens from a cylinder into a disk shape.
I will clamp the disk...
Moltenmetal,
thank you very much for your input. The situation is exaclty like you said and i really apprechiate your much better explanation.
As i am not so sure myself how much difference a hydrostatic test compared to a pneumatic test would make i also decided to start of with a...
Thanks MJCronin,
The test was thought out in order to see the fracture behaviour of fibre reinforced composite tubes under internal pressure.
The reason why i wanted to use air is the the high expansion of the air when decompressed. The fracture should be more rapid, and therefore more...
thanks for your input moltenmetal.
to 1.
for the testing i thought of a small cylinder with an outer diameter of 100mm and a thickness of 2mm. With a yield stress of roughly 80MPa Barlow's eq gives me a pressure of 32bar.
(just used for estimation, will use FE later)
to 2.
we planed to...
I agree with you jt, water would be much less violent. But for the real case, the cylinders are also filled with gas, and in case of over pressure that is what will exactly happen, a violent burst. We want to test different materials in order to find one which fails fairly safe. Therefore we...
Hello everybody,
In order to describe the behavior of several composite polymer cylinders under burst pressure (explosion) i would like to design a small test rig.
Has anybody already seen something like this?
Are there existing standards for a "burst test" like this?
Thanks for any input!
N
