Re: Re: Determining balsa stiffness

From: Don Slusarczyk <don5490_at_sbcglobal.net>
Date: Fri, 13 Jan 2006 23:02:30 -0500

Don Slusarczyk wrote:

> markdrela wrote:
>
> > --- In Indoor_Construction_at_yahoogroups.com, Kurt Krempetz
> > <krempetz_at_y...> wrote:
> > >
> > > I believe the method they are using to determine
> > > stiffness or actually modulus of elasticity of the
> > > balsa wood is to find out at what load buckling
> > > occurs.
> >
> > Ah, that's another way to do it.
> >
> > One possible problem with this buckling-load method is that the test
>
> Generally you bend it in one direction then again in the other and
> average it.
>
Also the weight of the sheet can be negelected when vertical. In a
horizontal deflection test, the weight of the sheet makes a big effect
on thinner sheets.

Don
Received on Fri Jan 13 2006 - 20:02:33 CET