Failure analysis and fatigue life assessment of a redesigned aircraft landing gear component

D. I. Panagiotopoulos, K. Stamoulis

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

Abstract

The present study deals with the failure analysis, the redesign and the fatigue life assessment of a rod end component of the North American T-2 jet trainer aircraft, nose landing gear (NLG) system. The rod ends suffer fatigue crack failures under tensile operational loading. Specifically, they are subjected to repeated loads during the take-off and landing of the aircraft which cause nucleation and growth of fatigue cracks. This study has been conducted by combining a finite element analysis (FEA) with a stress-life, fatigue design approach. A new component was designed with optimized geometry and the analysis has shown a significant decrease of maximum stress values, as compared to the corresponding values of the failed component and a subsequent increase in fatigue life without any other change in stress distribution. Furthermore, a specimen of the optimized design was manufactured and tested both functionally and operationally.

Original languageEnglish
Title of host publicationEngineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013
PublisherUniversity of Patras, Laboratory of Technology and Strength of Materials
Pages838-844
Number of pages7
ISBN (Print)9789608810433
Publication statusPublished - 1 Jan 2013
Externally publishedYes
Event3rd International Conference of Engineering Against Failure, ICEAF 2013 - Kos, Greece
Duration: 26 Jun 201328 Jun 2013

Publication series

NameEngineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013

Conference

Conference3rd International Conference of Engineering Against Failure, ICEAF 2013
CountryGreece
CityKos
Period26/06/1328/06/13

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