Fracture mechanics analysis of cracked high speed rotating devices
was completed as part of an Air Force SBIR (Small Business
Innovative Research Program). An innovative parametric analysis method was
develop to complete a consistent convergence study. The final mesh models
were designed to capture the correct physics occurring in the rotating and
crack solution fields. A design sensitivity analysis was completed in a
detailed form to produce an analytical variance of the performance
and fracture toughness of the system. A state-of-the art understanding was
created that produced new knowledge on the true discriminators
in rotating body performance.