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Show simple item record Dedekind, MO Harris, LE 2007-06-12T07:53:19Z 2007-06-12T07:53:19Z 1996-01-03
dc.identifier.citation Dedekind, MO and Harris, LE. 1996. Evaluation of premature failure of a gas turbine component. International Journal of pressure vessels and piping, vol. 66, 3 January, pp 59-76 en
dc.identifier.issn 0308-0161
dc.description Copyright: 1996 Elsevier Sciences Ltd en
dc.description.abstract A case study of certain gas turbine stator vanes which fail prematurely is presented, with a view to determining whether operational procedure might have caused the failures. The engines had been operated from a ‘hot-and-high’ environment, and this could have contributed to the failures. Computational fluid dynamics (CFD) techniques were employed in order to obtain an accurate design point thermal history. The resulting convection boundary conditions were then interpolated over a finite element mesh. Transient thermal and stress analyses were performed. At the same time, micro structural analyses of the service-exposed material were carried out to estimate the maximum temperature seen by the component. These showed that higher than expected vane metal temperatures were experienced. Emphasis was placed on the procedures outlined in the USAF Engine Structural Integrity Program, since little detail was known about the actual engine operating histories. en
dc.language.iso en en
dc.publisher Elsevier Science Ltd en
dc.subject Life assessment en
dc.subject MAR-M509 en
dc.subject Gas turbine engines en
dc.subject Finite element analysis en
dc.subject Computational fluid dynamics en
dc.title Evaluation of premature failure of a gas turbine component en
dc.type Article en

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