[Public-List] Mast Beam Repair

[Rachel]

On Jan 7, 2010, at 11:03 AM, crufone at comcast.net wrote:

> Rachel, as the beam is compressed from above center on the arc it  
> wishes to extend outward a thwratships.  This places the glue  
> between the laminates under sheer stress. When the glue fails it  
> allows the a thwartships movement which inturn allows the beam to  
> 'flatten' in the middle ( from the top downward)and the rig to lo se  
> tension.

Thanks for the correction!

I'm used to thinking of sheer and tension in regards to fasteners, and  
somehow when I applied that in my mind to the beam, I came up with  
tension.  Clearly incorrect, and I appreciate your explaining why.

Rachel
ex-#221


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