Thermal Mechanical Fatigue Crack Growth. An Application for Fracture Mechanics Analyses of Gas Turbine Engine Disks.
Interim rept. Mar 81-Jun 83,
PRATT AND WHITNEY WEST PALM BEACH FL ENGINEERING DIV
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The capability of the existing Hyperbolic Sine Model to accurately or conservatively predict the crack growth in engine components subject to thermal mechanical fatigue TMF was investigated. It was determined that existing empirical crack growth models adequately predict TMF crack growth under conditions tested, which reflect the current gas turbine engine Retirement for Cause requirementsapplications.