I've found a cool site that has more data than I knew existed for all kinds of wood. The problem is that they report everything in terms of things like MOR (modulus of rupture), MOE (modulus of elasticity) and WML (work to maximum load) and I don't know which DF values those correspond to. And then I have to make sure I've got the units right.
For example, here's the data on
mangrove wood (EDIT: also in
metric units). It's black mangrove (Avicennia spp.), if you're curious. The density (actually, specific gravity) is the only thing on that table I'm convinced I fully understand right now.
I know that DF has
material definition tokens and I've read all about those, but there's not a lot of information, even when cross-referenced with the
data on armor quality that gives a helpful table with some units.
I also looked up the
MOR, MOE and WML and while I found some
good explanations, it's still pretty hard to convert this stuff into values DF can actually use.
Is the MOE bending yeild? Is the MOR bending fracture? I'm not quite sure. I get really, really high numbers when I try to convert those values (in millions of lbf/in
2!) to Pa, which is supposed to be what the raws use. It's at 10,000 now and I'm getting a value in the 10
10 range, so I must have something wrong. The compression table looks like it should be related to compressive yield and maybe WML is related to impact yield. Shear might be related to shear yield.
But I'm just not sure. Add to the fact that I'm getting wildly different values out of Google calculator than anything I see in the raws and I start to think that I'm doing something wrong.
Does anyone more familiar with this stuff know which of these things correspond to what in DF? Or maybe someone can make sure that I'm converting things to the proper units? (DF Wiki seems to indicate that the raw values are in Pa, even though it lists them in kPa).
EDIT: I guess you can convert the data sheets to metric just by clicking the link on the page. That doesn't help much. It shows that I have values in MPa. DF uses Pa, per the wiki. So either that value isn't used in DF at all, or DF isn't giving wood nearly enough credit for... something.