modelling timber in structural software

huangyhg

modelling timber in structural software
hello all;
     what values do you use for modelling timber in structural software?  i'm looking for some guidance regarding the selection of poisson's ratio in particular.  since timber is heterogeneous and has min three values (radial, tangential & longitudinal), i would assume the longitudinal is appropriate, but am i correct?
     i have heard that softwood values do not varry greatly species to species, but what values would be conservative assumptions?  
thanks all,
ys
b.eng (carleton)
working in new zealand, thinking of my snow covered home...
check out our whitepaper library.
see pages 4-2 and 4-3 of the usda "wood handbook", at this link
hey, slideruleera - you need to change your handle to sliderulelinks!  well done again.
thanks, jae, the wood handbook is always a good place to start for these type questions.