SINGLE CRYSTAL TURBINE BLADE LIFING PROCESS AND SYSTEM
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Nov 15, 2013
filing date -
Oct 11, 2013
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Abstract
A system and methods for lifing a single crystal turbine blade of a gas turbine engine is disclosed. The system and methods determine the anisotropic strain of the single crystal turbine blade caused by fatigue and creep by resolving the shear stresses on each of the primary slip systems of the single crystal turbine blade. The system and methods use a ductility exhaustion method to combine the anisotropic fatigue and creep strains to determine the operating life of the single crystal turbine blade.
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