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Elevated temperature crack growthThe purpose is to determine the ability of currently available P-I integrals to correlate fatigue crack propagation under conditions that simulate the turbojet engine combustor liner environment. The utility of advanced fracture mechanics measurements will also be evaluated. Research showed that the experimentally measured displacements and loads can be accurately predicted by finite element analyses that consider the growth of the fatigue crack. These results are being used to evaluate nonlinear fracture mechanics parameters for correlating the observed fatigue crack growth rates for different strain ranges.
Document ID
19890007964
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Kim, K. S. (General Electric Co. Cincinnati, OH, United States)
Vanstone, R. H. (General Electric Co. Cincinnati, OH, United States)
Malik, S. N. (General Electric Co. Cincinnati, OH, United States)
Laflen, J. H. (General Electric Co. Cincinnati, OH, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1987
Publication Information
Publication: NASA, Lewis Research Center, Turbine Engine Hot Section Technology, 1987
Subject Category
Structural Mechanics
Accession Number
89N17335
Funding Number(s)
CONTRACT_GRANT: NAS3-23940
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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