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Main Boards => The Bowyer's Bench => Topic started by: inksoup on August 03, 2011, 03:18:00 AM

Title: MOE and MOR
Post by: inksoup on August 03, 2011, 03:18:00 AM
hi all,

i have found a web site that have huge database about wood properties and requested it from them. unfortunaty they will not provide it to me (which is undertandable). but here is the answer from them.

---------------

> I do play around with sorting the values of the different woods based
> on different criteria. While I don't have any experience making bows,
> I've taken the ratio of a wood's MOE and MOR, and found the woods that
> have the lowest MOE and a comparatively high MOR; basically woods that
> will bend easily, but not break, which seems to coincide closely with
> the best woods for making bows. Here's the top woods after sorting for
> this criteria in the database; hope it helps.
>
> European Yew
> Osage Orange
> Pacific Yew
> Kiaat
> Chinaberry
> Cebil
> Mansonia
> Turkey Oak
> Makore
> Movingui
> Field Maple
> African Blackwood
> English Walnut
> Alligator Juniper
> Pau Ferro
> Brazilian Rosewood
> Apple
> Aromatic Red Cedar
> Olive

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have fun.
Title: Re: MOE and MOR
Post by: Don Stokes on August 03, 2011, 08:13:00 AM
inksoup, check out the USDA Wood Handbook, which you can see on the Forest Products Laboratory website. It's the bible for us wood folks. Free to download by chapter.

http://www.fpl.fs.fed.us/products/publications/several_pubs.php?grouping_id=100&header_id=p
Title: Re: MOE and MOR
Post by: razorback on August 03, 2011, 08:21:00 AM
OK, what is MOE and MOR. And why don't we have all them woods at the local store.
Title: Re: MOE and MOR
Post by: red hill on August 03, 2011, 10:07:00 PM
Chinaberry? I have actually wondered about that lately. Chinaberry was popular when I was a kid but don't see much of it any more.
Title: Re: MOE and MOR
Post by: inksoup on August 04, 2011, 04:09:00 AM
re: razorback
MOE = modulus of elasticity
MOR = modulus of rupture

re:don
thanks for the link. i will check out. but i am looking for the database file that i can push it into my database on may laptop and whenever i need it i can query it.
anyway, i will check the link and download.  :)