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Nonlinear structural and life analyses of a combustor linerThree-dimensional, nonlinear, finite element structural analyses were performed for a simulated aircraft combustor liner specimen in order to assess the capability of nonlinear analyses using classical inelastic material models to represent the thermoplastic-creep response of the component. In addition, the computed stress-strain history at the critical location was input into life prediction methods in order to evaluate the ability of these procedures to predict crack initiation life. It is concluded that: (1) elastic analysis is adequate for obtaining strain range and critical location; (2) inelastic analyses did not accurately represent cyclic behavior of materials; and (3) none of the crack initiation life prediction methods were satisfactory.
Document ID
19850002647
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kaufman, A.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1982
Publication Information
Publication: Turbine Eng. Hot Sect. Technol. (HOST)
Subject Category
Aircraft Propulsion And Power
Accession Number
85N10955
Distribution Limits
Public
Copyright
Public Use Permitted.
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