Please use this identifier to cite or link to this item:
Title: Fatigue life assessment of an exhaust system for naval gas turbins
Authors: Martins, R.
Viegas, J.
Teixeira da Cruz, H.
Keywords: Fatigue life assessment;Naval gas turbines;Temperature and strain spectra;Aisi 316l;Finite element analysis
Issue Date: Oct-2011
Publisher: Elsevier
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.
Appears in Collections:DED/NAICI - Comunicações a congressos e artigos de revista

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.