Figured I would post these pics. I know destruction testing can be controversial but this isn't a fillet knife. Its an impact tool that is meant to do dirty work, take abuse, and keep on ticking. I think its important to test a tool beyond its limits to see where failure occurs. I had throughly tested the hawk for durability through normal use and abuse. I was initially concerned with the duribility of the beard but after extensive throwing, rock chopping, and trying to break it with prying I think the beard would never break or even deform majorly during abuse. My next point of concern was scale durability. Even though this isn't a splitting hawk and does not excel at it, I needed to make sure the scales could stand up to being pounded through wood. I could not get the scales to come of by splitting wood: even with huge pieces and using a sledge hammer to drive it. So with this testing, the two weakest points on the hawk stood up to everything I could throw at it. I finally decided it was time to see how failure could be induced.
I started by putting the hawk in a vice and seeing if I could pop off the scales with a dull chisel and a hammer. I put some dents in the scale but was unable to get a delamination with only a small hammer.
I was able to break the scales by hammering the head of the hawk into a log and then bracing the butt of the hawk on another log and hitting it with a sledge hammer. This didn't take long. About 4 swings from the hammer broke one of the scales. However due to all the pins in the handle, the broken scale didn't fall off and was still perfectly usable. I went back and split a few pieces of wood with the hawk, driving it with a sledge hammer the whole time. Even with the scale broken in the middle, it stayed attached through this process.
Next I decided it was time to see what kind of damage this hawk could really take. I hammered it into a fallen tree so that the tang was sticking out, picked up an 80lb log and threw it at the hawk about 30 times. That didn't work so I gave it about 6 blows with a sledge hammer. With this the other scale broke and came flying off but still no failure. Finally I repositioned the hawk, hammered the entire head into the tree and threw the log at it. After about three impacts the hawk finally snapped.
Failure occurred right where physics would suggest it would, the weakest point. A jagged break occurred around the skeletonizing hole. The scales also broke around the pin holes where there was the least amount of material. I have taken away some valuable knowledge and will be incorporating it into my next designs.
Is the test I performed anything that would occur during normal use? No. Is this testing the measure of a good tool? Absolutely not. While this testing is valuable, a hawks ability to be hit over and over again by a sledge hammer does not make it any better to the user. A good hawk MUST be tough. It must stand up to abuse. But it needs to be good at chopping, carving, throwing, hammering, etc... or toughness is completely inconsequential.
After all this testing I'm really happy with this hawk. It was made to be a compact tool for utility. Light and small enough to carry all day, big enough to chop, comfortable enough for extended chopping and carving, tough enough not to fail, hard enough to hold a good edge, and thin enough to slice well. I wanted this to be a hawk that could take the place of a knife if need be. And after alot of use, I think it does a good job of fulfilling that role.