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Stressbar discussion...



ref. last sentence.
Yes, he could have said something like "if the tower deflected four feet, then your wheel would be laying on the ground"  It would have conveyed the same thought, just more exagerated.  
 Fortunately, the towers don't deflect four feet.  They also don't deflect .420".  They may not even deflect .200".  In fact, they probably DON'T deflect .200".

Irregardless, the guy has the towers deflecting the wrong way (outward) under cornering...a detailed mental stress analysis tells me ( :) ) the stresses would be INwards.

Larry
  ----- Original Message ----- 
  From: Dan Bubb 
  To: David Utley 
  Cc: scirocco-l@scirocco.org 
  Sent: Friday, March 05, 2004 3:19 PM
  Subject: Re: Stressbar discussion...


  "Another point to consider is that if your outer strut tower is deflected outwards 0.20" by this 333
  lb force, then you just lost 0.5? of negative camber!  If it deflects 0.42" you have lost a full
  degree of negative camber. "

  This is the quote. He doesn't state any measured deflection. He's only equating deflection to camber
  change. Both deflections, 0.20" and 0.42",  are hypothetical.
  I'm merely pointing out that if the chassis was so weak that it had that much deflection the extreme
  movement and resultant stresses (beyond the material yield point) would fatigue and crack the metal
  very quickly.
  The actual deflections can't be as high as his examples so the camber change due to deflection is
  proportionally much less.
  Just making the point that he's exaggerating the possible camber change due to deflection.
  Dan