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Elevated temperature biaxial fatigueBiaxial fatigue is often encountered in the complex thermo-mechanical loadings present in gas turbine engines. Engine strain histories can involve non-constant temperature, mean stress, creep, environmental effects, both isotropic and anisotropic materials and non-proportional loading. Life prediction for the general case involving all the above factors is not a practicable research project. The current research program is limited to isothermal fatigue at room temperature and 1200 F of Hastalloy-X for both proportional and non-proportional loading. An improved method for predicting the fatigue life and deformation response under biaxial cycle loading is sought.
Document ID
19840013837
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Jordan, E. H. (Connecticut Univ. Storrs, CT, United States)
Date Acquired
September 4, 2013
Publication Date
August 15, 1983
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-173473
NAS 1.26:173473
Accession Number
84N21905
Funding Number(s)
CONTRACT_GRANT: NAG3-160
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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