Aim
- To test at what pressure a 1.25L and 1.5L bottles will fail.
- To test at what pressure a reinforced 1.25L bottle will
burst.
Experiment Setup
The standard hydrostatic burst test procedure was used to carry
out these tests. (See above). One of the bottles was reinforced
with regular gaffer tape.
 |
Bottle on test stand. |
Results
Four bottles were tested all together. The first bottle had too
much air in it and as a result produced a good loud bang.
 |
A little too much air in the bottle does more damage... |
 |
...than when there is only water. |
 |
Applying some re-enforcement gaffer tape. |
 |
The victims. |
| Capacity |
Burst Pressure
(psi) |
Burst Pressure
(bar) |
Notes |
|
1.25 L |
190 |
13.1 |
This was a standard 1.25L bottle with
the label and cap ring removed. This bottle had a
significant amount of air in it and as a result got
quite shredded. |
|
1.25 L |
185 |
12.8 |
Same bottle as above but this time there
was no air in it. This one only split along the side. |
|
1.5 L |
175 |
12.1 |
A standard 1.5L bottle with label and
cap ring removed. There was no air in this one and it
split along the side. |
|
1.25 L |
195 |
13.4 |
We used 3 bands of gaffer (duck) tape on
the widest part of this one. During filling the hose
sprung a leak and it went only up to 180psi. Refilling
it a second time it was already pre stressed and failed
at 195 on the neck part of the bottle. |
Conclusions / Analysis
|
