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061008-001 Bottle burst tests
Date 8th October 2006
Tested by PK and GK.
Location Sydney, Australia
Test Procedure Burst Test
References http://www.AirCommandRockets.com/procedures.htm#BurstTest

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

  • The gaffer tape only had marginal effect on reinforcing the bottle in this case.

 



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