Failure analysis of two sets of aircraft blades

E. Silveira, G. Atxaga, A. M. Irisarri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper analyses the failure of two blades, coming from different aircraft engines. The first one corresponds to the high pressure compressor manufactured in a 718 nickel base superalloy. The failure analysis carried out on this blade points towards foreign object damage (FOD). The second set belongs to the high pressure turbine of another engine. Scanning electron microscopy attributes the first fail to the premature failure by a thermo-mechanical fatigue mechanism of one blade with an inadequate microstructure. The remaining blades of this set, which possess a correct microstructure, failed due to the impacts of the debris generated by the fracture of the first one.

Original languageEnglish
Title of host publication17th European Conference on Fracture 2008
Subtitle of host publicationMultilevel Approach to Fracture of Materials, Components and Structures
Pages2031-2038
Number of pages8
Publication statusPublished - 2008
Event17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 - Brno, Czech Republic
Duration: 2 Sept 20085 Sept 2008

Publication series

Name17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures
Volume3

Conference

Conference17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17
Country/TerritoryCzech Republic
CityBrno
Period2/09/085/09/08

Keywords

  • Aircraft engines
  • Blades
  • Failure analysis
  • Nickel base superalloys

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