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U.S. Department of Energy
Office of Scientific and Technical Information

Elevated temperature biaxial fatigue

Technical Report ·
OSTI ID:6496947
Biaxial 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.
Research Organization:
Connecticut Univ., Storrs (USA)
OSTI ID:
6496947
Report Number(s):
N-84-21905; NASA-CR-173473
Country of Publication:
United States
Language:
English