Tear in Strut Tower Webbing WAS: Strut Tower Brace Design Revisited

[SuffolkD at aol.com]

Sean:  Liosters have mentioned that a way to stop a metal tear is to drill a 
round hole at the end.  Aircraft method I think, for alumnium.
Audi seems to have anticipated a tear there (in the webbing) and pre drilled 
a hole to stop it from going all the way.
Yours is one of the best photos I've seen.
-Scott by BOSTON

> From: "Sean" <>
> Amidst all the engineering talk about forces, rebounds, and moments, I must 
> admit to being a bit lost.  However, I'm trying to follow- and thought some 
> interjected points might be worth considering:
> 1.  Why does the stress fracture occur only at the OEM hole in the sheet 
> metal?  Does that hole lessen the strength of the gussett?  It would seem so.  
>