interesting wood article

[Farrell]

Not suggesting anything one way or another. Just merely making the
observation that spruce is often used in instruments because it has the
highest strength-to-weight ratio (or my belief is that is the primary
reason). So why go dense? Perhaps within a given spruce specie, the
strength-to-weight ratio increases with density - but if I had to, I would
guess that the highest strength-to-weight ratio would be with less dense
material - or perhaps there is some optimum in the middle somewhere. Does
anyone have/seen data suggesting how the strength-to-weight ratio of Sitka
Spruce varies with density? Or maybe there is no correlation.

Terry Farrell

----- Original Message ----- 
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, December 09, 2003 4:48 PM
Subject: Re: interesting wood article
>
> Farrell wrote:
>
> > If  high density were such an important factor, why didn't the Cremonese
> > violinmakers just cut down a hard maple tree instead of a spruce?
> >
> > Terry Farrell
>
> Perhaps because it is only one of a few important factors ??  Are you
suggesting
> that lower density spruce is to be prefered over more dense spruce for use
in
> instrument making, or equally so ? Not that I would dissagree mind you...
but if
> you are... what would your reasoning be ?
>
> Cheers
> RicB
>
> --
> Richard Brekne
> RPT, N.P.T.F.
> UiB, Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
> http://www.hf.uib.no/grieg/personer/cv_RB.html
>
>
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