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International Journal of Fracture

, Volume 80, Issue 2–3, pp 147–163 | Cite as

High cycle fatigue in aircraft gas turbines—an industry perspective

  • B. A. Cowles
Article

Abstract

The largest single cause of component failures in modern military aircraft gas turbine engines is high cycle fatigue (HCF), exceeding the number attributed to low cycle fatigue, corrosion, overstress, manufacturing processes, mechanical damage, and materials. The HCF problem is a pervasive one, affecting all engine sections and a wide range of materials. In addition to the impact on engine component reliability, HCF problems cause significant economic impacts through field inspection and maintenance actions, and reduced readiness reliability.

This paper presents an overview, from an industry perspective, of the current, highly empirical approach for assessing the HCF capability. Complicating factors that must be addressed which affect engine HCF material capability are also described. Future directions which would improve the current approach are outlined, emphasizing incorporation of fracture mechanics. Technical challenges which must be addressed to successfully implement use of fracture mechanics for HCF are described, and areas of research recommended.

Keywords

Damage Mode High Cycle Fatigue Foreign Object Damage Disk Attachment Goodman Diagram 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • B. A. Cowles
    • 1
  1. 1.Materials and Mechanics EngineeringWest Palm BeachUSA

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