RC vs CC again

[Richard Brekne]

I dont think its so much a question of this bit fading out, as it is
that we are discussing other aspects of the whole problematic'.
Besides.. we have heard all this before many times and are all pretty
comfortable as to the causes and severity of compression damage... tho
no doubt their is some disagreement as to the later.

Still.. we were actually not talking about compression damage per se.

RicB


Ron Nossaman wrote:
> 
> 
> And the thing that seems to fade out of the discussion immediately is the
> understanding that compression damage occurring in a RC board doesn't mean
> loss of crown and tone to nearly the degree it does in CC. Panel
> compression at high levels is all the CC board has available to it to
> support crown against string bearing and to provide stiffness. Panel
> compression damage under these conditions makes a relatively big difference
> in stiffness and load capacity of the assembly. An RC assembly designed
> such that the ribs are carrying the bulk of the load will suffer
> considerably less than the CC board even with similar panel compression
> damage simply because the panel condition isn't as critical to the
> structure in a RC assembly.
> 
> Sure, the RC board's panel won't be damaged as readily by MC swings because
> it was assembled at a higher MC than the CC board, but panel damage is far
> less critical to function in the RC board in any case.
> 
> Ron N
> 
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-- 
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