Klarinet Archive - Posting 000766.txt from 1999/10

From: "Dee D. Hays" <deehays@-----.com>
Subj: Re: [kl] Cracked clarinets
Date: Mon, 25 Oct 1999 20:48:03 -0400

----- Original Message -----
From: Kevin Fay (LCA) <kevinfay@-----.com>
Subject: RE: [kl] Cracked clarinets

> Tom R. noted:
>
> <<<After installing several hundreds of pins I have begun to suspect that
a
> clarinet that has a propensity for cracking will crack no matter how well
> you take care of it.>>>
>
> I do not have Mr. R's depth of experience in repairing clarinets--few of
us
> do--but I share his suspicion. I have never had a clarinet crack, and to
be
> honest have not been all that careful. (For example, my current Bb --
oddly
> enough, back to the one I acquired in high school -- has sat in a
> refrigerator and done way more than its share of outdoor concerts. In
rain
> ;-( ) Friends of mine who have done the whole religious thing with
> break-in periods, orange peels etc. cracked anyway.
>
> It seems that clarinets that do crack do it relatively early in life.
> Anyone have an old one crack up, absent some really egregious abuse?
>
> If there is an internal flaw in the wood, it'll crack sooner or later.
> Better for it to be sooner, I think.
>
> kjf

Some time ago, I posted a calculation of the approximate stresses in a
clarinet due to the thermal changes. They were so far below the strength
values for wood that it provides strong support for the argument that a
clarinet that cracks has an internal flaw in the wood. In which case,
sooner or later it will crack at that flaw.

Dee Hays
Canton, SD

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