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Re: GSBN:Compression & bumble bees


Point taken.

Yes the bales actually stiffen or put otherwise the modulas of E
actually increases. This effect is the most marked in the initial phase
of force application ie 3-7% deformation. In this phase the rough
exterior faces are pressed into each other ie until the whole wall or
single bale exhibits a more or less uniform density.

John I have the impression both things are happening the strings are
resisting bulging of the bales and more grain stalks on end. As you
state the latter depends on the baling machine used. Most of the bales
I have access to are quite random and obviously different to the tested
german bales with a clear orientation.

On Aug 22, 2006, at 21:38, John Swearingen wrote:

I admit to taking liberties with the fine work being done, just to
make a
point, and I'm sure they are gathering information that will be useful
to us

It appears that what you're saying is that, for very high loads, the
of deformation of the bales determines the carrying capacity.  This is
obviously the case with bales put in a wall, and I'm surmising that
it's the
reason that bales on edge perform better than laid flat--on edge, the
strings act to constrain the bales from bulging along their width?  Or
it have to do with the direction of the grain.  If that's the case,
that needs to be pointed out, because different baling machines gather
stalks in different directions.