|Smoke and Mirrors: Ultra-Rapid-Scan FT-IR
This false color plot shows the von Mises or total stress in a
cross-section of the aluminum disk when operated at 30,000 rpm. The peak stress
corresponds to approximately 35 MPa. The yield point of aluminum should be at least twice
this high, and if there are no cracks in the disk, the ultimate tensile strength should be
about 14 times higher.