Primitive Archer

Main Discussion Area => Bows => Flight Bows => Topic started by: Badger on December 25, 2014, 02:27:50 pm

Title: Great system for testing wood
Post by: Badger on December 25, 2014, 02:27:50 pm: Digital Image Correlation: GOM http://www.gom.com/metrology-systems/digital-image-correlation.html For anyone interested check out this link. It is a dream come true for anyone that really wanted to analyze what the wood is doing in a bow. For some reason I can't get the hyper link to work? If anyone knows how to put in a hyper link I can e mail the link.

P.S. You were just missing the l in the html at the end of the link Steve
Title: Re: Great system for testing wood
Post by: Marc St Louis on December 25, 2014, 07:01:20 pm: Steve
As an aside, I've had a few communications with a retired engineer by the name of Richard Baugh from out your way. He convinced a university grad student to perform stress tests on heat-treated wood to see what the benefits were in relation to bow building. He sent me the report a few weeks ago, very interesting. Let me know if you would be interested in reading it.
Title: Re: Great system for testing wood
Post by: Badger on December 26, 2014, 02:13:05 am: I certainly wood Mark, I have been in close touch with Richard lately. heat treating is one of the big things I am really interested in. I am building a box to experiment with slow heat treating over several hours. I was advised about 280 will be my optimum temp by a gentleman who works in the wood industry and does wood curing for other reasons. I wanted to cure without scorching.
Title: Re: Great system for testing wood
Post by: Badger on December 26, 2014, 02:15:37 am: I have another gentleman who works in a test laboratory where he can paint the wood with a special paint and then use some kind of special photography to show things like strain and location of nuetral planes. He offered to have one of his students run some tests on a bow next year.
Title: Re: Great system for testing wood
Post by: Ian. on December 27, 2014, 03:06:54 pm: Marc, would it be possible for thatarticle to be posted up online for us all to see?
Title: Re: Great system for testing wood
Post by: Badger on December 27, 2014, 11:04:19 pm: Dick publishes a lot of his work and is very good about applying credits to those he works with on these studies. Mark may have to check with Dick before making it public. It is 11 pages long.
Title: Re: Great system for testing wood
Post by: Marc St Louis on December 28, 2014, 11:15:50 am: It is a lengthy document. I will check with Dick to see if he minds if I upload a copy to my site
Title: Re: Great system for testing wood
Post by: Springbuck on December 28, 2014, 03:29:53 pm: Badger, are you talking about heat treating a wood and then backing it? I have been considering asking my friend if I can send a few slats through his pizza oven.
Title: Re: Great system for testing wood
Post by: Badger on December 28, 2014, 06:25:26 pm: Yes heat treating only the belly strips. My posts keep disappearing. This is the third time I have replied now.