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Elevated temperature crack growthThe objective of the Elevated Temperature Crack Growth Program is to evaluate proposed nonlinear fracture mechanics methods for application to hot section components of aircraft gas turbine engines. Progress during the past year included linear-elastic fracture mechanics data reduction on nonlinear crack growth rate data on Alloy 718. The bulk of the analytical work centered on thermal gradient problems and proposed fracture mechanics parameters. Good correlation of thermal gradient experimental displacement data and finite element prediction was obtained.
Document ID
19870012834
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Malik, S. N. (General Electric Co. Cincinnati, OH, United States)
Vanstone, R. H. (General Electric Co. Cincinnati, OH, United States)
Kim, K. S. (General Electric Co. Cincinnati, OH, United States)
Laflen, J. H. (General Electric Co. Cincinnati, OH, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1987
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-179601
NAS 1.26:179601
Accession Number
87N22267
Funding Number(s)
CONTRACT_GRANT: NAS3-23940
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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