Fatigue life assessment of an exhaust system for naval gas turbins

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dc.contributor.author	Martins, R.	pt_BR
dc.contributor.author	Viegas, J.	pt_BR
dc.contributor.author	Teixeira da Cruz, H.	pt_BR
dc.contributor.editor	LNEC	pt_BR
dc.date.accessioned	2011-12-08T19:03:53Z	pt_BR
dc.date.accessioned	2014-10-10T09:18:43Z	pt_BR
dc.date.accessioned	2016-06-21T10:01:58Z
dc.date.available	2011-12-08T19:03:53Z	pt_BR
dc.date.available	2014-10-10T09:18:43Z	pt_BR
dc.date.available	2016-06-21T10:01:58Z
dc.date.issued	2011-10	pt_BR
dc.identifier.uri	https://repositorio.lnec.pt/jspui/handle/123456789/1002827
dc.description.abstract	Propagation of cracks was detected in an exhaust system that is manufactured with an austenitic stainless steel (AISI 316L). Usually cracks propagate from weld toes of butt and fillet weld joints located near the lower support ring of the structure. An in-service strain spectrum was collected with a high-temperature spot-welded strain gauge and temperature distribution was monitored with eight thermocouples spotwelded on the critical region of the exhaust system. A pressure spectrum was also acquired at its outlet section. A redesigned geometry of the structure was analysed by finite element method and its fatigue life assessed.	pt_BR
dc.language.iso	eng	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	restrictedAccess	pt_BR
dc.subject	Fatigue life assessment	pt_BR
dc.subject	Naval gas turbines	pt_BR
dc.subject	Temperature and strain spectra	pt_BR
dc.subject	Aisi 316l	pt_BR
dc.subject	Finite element analysis	pt_BR
dc.title	Fatigue life assessment of an exhaust system for naval gas turbins	pt_BR
dc.type	workingPaper	pt_BR
dc.identifier.localedicao	web	pt_BR
dc.description.figures	6	pt_BR
dc.description.tables	0	pt_BR
dc.description.pages	2548-2553pp	pt_BR
dc.description.volume	10	pt_BR
dc.description.sector	DED/NAICI	pt_BR
dc.description.magazine	Procedia Engineering	pt_BR