Do you want a composite pool cue?
Or do you want a "magical material" that is like wood, only much better?
And then you will figure out how to make a pool cue out of it.
As you probably know, you can make a hollow metal tapered cylinder which
is hollow enough to float. This is the design part of materials utilization.
Wood uses internal voids to create this low density and oriented fibers
to create the high elastic modulus.
It is possible to make something approaching or exceeding the modulus
you cite with a density not much larger than 1.0..
Presumably, somebody could figure out either:
1) how to add controlled voids of void containing fillers to get closer
to what you want.
2) how to use shape, such as a tapered hollow cylinder, to achieve the
desired structural response.
How much money do you have to achieve your goals?
Remember, the advanced composites took over most of the bamboo fly rod
market, and never made a material (as opposed to a rod structure) that
resembled bamboo in the slightest way.
I would learn this fly rod lesson quite well in making new generation
Guitar or bass neck, right? :)
Vigier Guitars has used carbon composite beam to replace traditional truss
The stiffness/density considerations are (usually) structure-dependent.
Therefore it is often a good idea to consider hollow beams or structural
foams instead of all-solid bulk. For example, some Kevlar 49 or 149 fibers
used with 3M glass microsphere filled epoxy resin (maybe Epikote 246 +
Epikure 6514, or SP Systems Prime 20, just proposing some low viscosity
epoxy systems..) might get close to what you are after. You should do some
If it is a musical instrument in question, one must also consider that
just calculated stiffness/density ratio does not often enough characterize
the harmonic response.
On Mon, 03 May 2004 20:05:00 -0700, Platinum Billiards wrote:
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