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From: Steve & Anne Price
Date: Tue, 8 Oct 1996 01:47:35 -0500 (CDT)
Subject: Re: In defense of the IronMan

On Tue, 8 Oct 1996, Scott Mitchell wrote:

>
> Larry Mitchell wrote:
> > Yes sir you did hear me talk of a strengthening phenomenon that
> >makes a part stronger if one increasingly stresses a component cyclically
> >from low stresses to high stresses. This is called coaxing. Very
> >specifically I do not know whether this occurs in the brass used in the
> >reeds. It is known in steels and I have two citations for this. They are
> >both given on pages 93 & 94 of Sors book on "Fatigue Design of Machine
> >Components", Pergamon Press, Oxford England, 1971. Both of these
> >citation references are in German!!! To sum it up, the endurance limits
> >have been coaxed up by 20-60%!!! and the lives have been extended by
> >100x-6000x! It would seem that this should be a viable techniques to use
> >on a Harp-L, if the metals are susectible to what I would guess would be a
> >strain aging phenomenon.


Hey Scott,

Thanks for the post. I'm still skeptical, though, because in my
experience I don't notice any difference between harps that I've "broken
in" gently and those I just play normally. Can you get him to offer an
explanation in plain language about how the mechanism of coaxing is
thought to work?

Steve Price