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nafex - Re: [NAFEX] Blow out and interstem length

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  • From: list@ginda.us
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Blow out and interstem length
  • Date: Sat, 15 Mar 2003 17:42:45 -0500

I don't think the physics is that simple. Beams that are uniform behave quite differently under stress from beams with irregularities - basically, stress is concentrated at point of local weakness - such as a graft, I would expect. I may run this by the physicist I commute with.

Ginda

On Saturday, March 15, 2003, at 04:49 PM, Ed Forest wrote:

Someone wrote: "Closer the graft is to the ground the more leverage the wind has to break it off.
 
That's good news if significant but I wonder how much difference 7 to nine inches would make. (I imagine nafex response might run along a gender line here). I imagine that torque would decrease exponentially with length, but I haven't had much experience with this. It would make an easy experiment with a spring scale. Any volunteers?

 

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