Thermomechanical fatigue life prediction in gas turbine superalloys - A fracture mechanics approach

A model that was developed to predict thermomechanical fatigue crack initiation and estimate mode I crack growth of gas turbine hot section gas path superalloys is described. Coating thickness, single crystal anisotropy, cycle waveshape, dwell and thermal exposure are among the thermomechanical fati...

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Veröffentlicht in:AIAA journal 1995-06, Vol.33 (6), p.1114-1120
1. Verfasser: Nissley, David M
Format: Artikel
Sprache:eng
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Zusammenfassung:A model that was developed to predict thermomechanical fatigue crack initiation and estimate mode I crack growth of gas turbine hot section gas path superalloys is described. Coating thickness, single crystal anisotropy, cycle waveshape, dwell and thermal exposure are among the thermomechanical fatigue cracking effects captured by the model.
ISSN:0001-1452
1533-385X
DOI:10.2514/3.12804