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Dear List,_______________________________________________
I have a side-project going in which I am a consultant to a
maker of music boxes. I have considerable experience in acoustics,
and some in materials, but would appreciate any help which might be
given here (and I know that this forum, despite its wonderful
tangents, really isn't meant for such questions; I'd appreciate any
off-list messages or pointers to more appropriate forums).
One of the questions a particular manufacturer has is about
appropriate materials for sounding boards in their boxes (the
bottom of music boxes usually acts as a sounding board). Though
various woods give good results (high enough Q to resonate, but not
so high that no sound can be audible; good looks; long lifetimes;
ease of machining), a question has been raised as to certain
plastics. Now, I know that plastics, almost by definition, are not
going to be entirely suitable for such a use (they're _plastic_,
can become brittle with age, light exposure, and ozone, warp under
pressure, etc.). However, CFRPs seem almost ideal from my viewpoint
(except for, perhaps, looks and sunlight resistance) http://
en.wikipedia.org/wiki/Carbon_fiber_reinforced_plastic has a few
details, as does this article: http://
chambermusictoday.blogspot.com/2009/01/bow-kinematics-carbon-fiber-
vs.html .
Does anyone here have experience with materials who could
upload their brain to mine?
Best wishes,
Curtis O.