Cyclic Structural Analyses of Air-Cooled Gas Turbine Blades and Vanes NASA Lewis Research Center

Format:

Conference/Event

Author/Creator:

Kaufman, Albert, author.

Conference Name:

Aerospace Engineering and Manufacturing Meeting (1976-11-30 : San Diego, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1976

Summary:

The creep-fatigue behavior of a fully impingement-cooled blade for four cyclic cases was analyzed by using the Elas 55, finite-element, nonlinear structural computer program. Expected cyclic lives were calculated by using the method of Strainrange Partitioning for reversed inelastic strains and time fractions for ratcheted tensile creep strains. Strainrange Partitioning was also applied to previous results from a one-dimensional cyclic analysis of a film-impingement-cooled vane. The analyses indicated that Strainrange Partitioning is more applicable to a constrained airfoil such as the film-impingement-cooled vane than to the relatively unconstrained fully impingement-cooled airfoil.STAR category 39

Notes:

Vendor supplied data

Publisher Number:

760918

Access Restriction:

Restricted for use by site license