Rotating Disk Hoop Stress

Prototype Scope

This tool estimates stress and speed margin for high-speed rotors. It is intended for first-pass sizing and sanity checks before detailed FEA.

• Geometry options: solid disk, annular disk, thin ring.
• Outputs include stress maxima, safety factor, allowable speed, and stress profile.
• Assumes isotropic material, constant thickness, and elastic behavior.

Primary References

• Budynas and Nisbett, Shigley's Mechanical Engineering Design (rotating disk/ring stress).
• Timoshenko and Goodier, Theory of Elasticity (axisymmetric rotating disk solutions).