Characterization of the Multiaxial States of Stress in an Uncooled Gas Turbine Blade PUBLIC ACCESS

[+] Author Affiliations
A. Fischersworring, W. Koschel

Technical University of Aachen, Aachen, F. R. G.

Paper No. 87-GT-261, pp. V005T13A012; 10 pages
  • ASME 1987 International Gas Turbine Conference and Exhibition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Process Industries; General
  • Anaheim, California, USA, May 31–June 4, 1987
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7927-6
  • Copyright © 1987 by ASME


The assessment of fatigue-creep life of hot engine components either using conventional safe life design approach or damage tolerant design concepts require the computation and evaluation of the stress-strain-temperature-time cycles corresponding to the operational sequences. For typical jet engine operations the temperature and elastic stress-strain states for an uncooled turbine blade were calculated using finite elements. A primary concern was the aspect of multiaxiality and associated non-proportionality. The results are discussed in regard to multiaxial equivalent damage concepts.

Copyright © 1987 by ASME
Topics: Stress , Gas turbines , Blades
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