Subject: Re: [harryproa] AirCell tested and fails (I think) |
From: Mike Crawford |
Date: 6/8/2009, 10:17 AM |
To: harryproa@yahoogroups.com.au |
Reply-to: harryproa@yahoogroups.com.au |
In order to get a consistent test across various laminates, I'd
suggest building a rig for your sledge hammer out of a couple of 2x4's.
Ideally you could drill through the bottom of the handle and insert a
rod through the base, allowing the hammer to pivot from that point,
with some other 2x4's cross-wise to hold a panel of laminate at the
impact zone. Lift the head of the hammer to the same height each time
and you'll have the same impact force.
If you don't want to drill through the handle, you could also put the
rod through two 2x4's and lash the hammer between them. Whatever the
setup, the goal is to have the hammer hit square every time, from a
measured height.
You could do the same height every time and see how many blows to
failure. Or you could do increasing heights and see which one breaks
the laminate.
Without being able to replicate the same angle and force of impact,
though, comparisons between different laminates won't really be valid.
- Mike
Gardner Pomper wrote:
Oops!
When you said, hit with a hammer, and put a block of wood and hit with a sledgehammer, maybe I should have asked what you meant. Did you mean just hit it once?
- Gardner