Engineering Failure Analysis

[kramarczyk]

Originally Posted by indieFan

The coach of the team and I were so serious about this solution that the following year, a college student was saying, "Let's use aluminum for the hub, it weighs less." We told him several times to use steel. We finally said that it was a lesson learned from last year. Then he gave in to using steel.

indieFan

Somebody can always spring for some titanium.
per www.matweb.com...

                     Yield          Density
Steel-1018              53700 psi    0.284 lb/in³
Titanium Ti-7Al-4Mo  150000 psi   0.162 lb/in³    
Alum- 2024-T6         50000 psi    0.1 lb/in³

Not sure if the titanium is a useful grade, but the point stands.