Quote:
Originally Posted by Spuds
Yes, I didn't mean to imply that the aluminum knuckles on the BRZ were likely to fail or even fatigue within the lifetime of the rest of the car given anything but very extreme circumstances. Metallurgy and design of isotropic materials is quite well understood and precise.
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As well as the mechanical design may be understood, the forces may not. Practical experience says we should have some slight concerns.
I don't have time to dig up the NASIOC thread right now, but Karen Kraus failed at least one aluminum control arm on her 2006 WRX autocross car. R-comp tires and lots of cornering may put the car in a usage space not envisioned by the designers.