PSI - Issue 11

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ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedire t.com Sci ceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedi Structural Integrity 11 8 68–75 Structural Integ rity Procedia 00 ( 2018) 000–000 Structural Integ rity Procedia 00 ( 2018) 000–000

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XV Portuguese Conference on Fracture, PCF 2016, 10-12 February 2016, Paço de Arcos, Portugal Thermo-mechanical modeling of a high pressure turbine blade of an airplane gas turbine engine P. Brandão a , V. Infante b , A.M. Deus c * a Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal b IDMEC, Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal c CeFEMA, Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal Abstract During their operation, modern aircraft engine components are subjected to increasingly demanding operating conditions, especially the high pressure turbine (HPT) blades. Such conditions cause these parts to undergo different types of time-dependent degradation, one of which is creep. A model using the finite element method (FEM) was developed, in order to be able to predict the creep behaviour of HPT blades. Flight data records (FDR) for a specific aircraft, provided by a commercial aviation company, were used to obtain thermal and mechanical data for three different flight cycles. In order to create the 3D model needed for the FEM analysis, a HPT blade scrap was scanned, and its chemical composition and material properties were obtained. The data that was gathered was fed into the FEM model and different simulations were run, first with a simplified 3D rectangular block shape, in order to better establish the model, and then with the real 3D mesh obtained from the blade scrap. The overall expected behaviour in terms of displacement was observed, in particular at the trailing edge of the blade. Therefore such a model can be useful in the goal of predicting turbine blade life, given a set of FDR data. U iza S. Pach onardo S. niversidade Fed ract concern of pre ities. This stud cipality of Cac d out by resea e memory worl ibute to the pr odology of Da sentation comp ifferent pathol ment for the b ributes to the re ery postures o eral de Santa Ma serving archite y aims to eval hoeira do Sul / rchers from the ld of Rio Gran oject through mage Map was lemented by p ogies and i d udget forecas cognition of T f this important ria - Campus Ca ctonic assets in uate the state RS, in the sou Universidade de do Sul". Th the evaluation used, which c hotos, identific ications of pos t of restor tion afona's main ho architectonic a cludes also th of conservation thern region o Federal de San e Damages Ma of the externa o sist d in map ion of the m sible intervent and intervent ouse state of co sset. rom dam N. Lens, B e D. Joris orto . ua Ernesto Barr e care to watc of the facade f Brazil, by ma ta Maria, Cach p uses the regi l facades of th pping the patho aterials th t co i ns. It’s wort ion projects. In nserv tion and age ma runa F. A , Quétilan os, 1345, Cacho h over the urb s of São José pping its dama oeira do Sul C istry data of Ta e same. For t logies of the b mpose the ac h notin that this sense, th can serve as a ndrade, Cr R. Doming eira do Sul, RS, 9 an and rural la Farm’s main h ges. It is part o ampus, titled " fona Farm mai he developmen uilding facades ade, mapping the Damage M e material elab support for fut istina Stor ues, Rhaí 6.506-280, Braz ndscape of dif ouse, located of a research p Tafona Farm: n house and ai t of this study s through its gr nd di nsioni ap is an imp borated in this ure preservatio ck, ssa il, ferent in the roject a trip ms to , the a hic ng of ortant work n and U iza S. Pach onardo S. niversidade Fed ract concern of pre ities. This stud c pality of Cac d out by resea memory worl ibut t the pr odology of Da sent comp iffer nt pathol m nt for the b ibutes t t re very postures o eral de Santa Ma serving archite y aims to eval hoeira d Sul / rche s fr m the d of Rio Gran roject through mag Map was lemented by p gies an ind u get forecas cogni ion of T f this mportant ria - Campus Ca ctonic assets in uate the tate RS, in the sou Universidade de do Sul". Th the evaluation used, which c hotos identific ica i ns of pos of re toration af na's main ho architectonic a da, Luciani nn, Nadian M. P choeira do Sul, R cludes also th of con ervation thern r gion Federal de San e Dam ges M of the extern onsisted in map ation o the m sible intervent and ter e t use sta of co ass t. rom dam N. Lens, B e D. Joris orto . ua Ernesto Barr e care to watc of the fac de of Brazil, by ma ta Maria, Cach ap uses the regi l facades of th ping the patho aterials that c ions. It’s wort io proj cts. In serv tion and age ma runa F. A , Quétilan os, 1345, Cacho h over the urb s f São José pping its dama oe ra do Sul C stry data of Ta e same. For t logies of the b mpose the fac h n ting tha this sense, h can serve as a ndrade, Cr R. Doming eira do Sul, RS, 9 an and rural la Farm’s m in h ges. It is part o ampus, titled " fona Farm mai he velop en uilding facades ade, mapping a th Damage M h material lab support for fut istina Stor ues, Rhaí 6.506-280, Braz ndscape of dif ou e, locate f a research p "T fona Farm: n house and ai t of this study thr ugh its gr and dimensioni ap is an mp borated i this ture preservat o ck, ssa il, ferent in the roject a trip ms to , the aphic ng of ortant work n and

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© 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Keyw ords: Conservati on; Damage Map ; Restoration, Pa thologies, Rural Architecture. right © 2018 E review under r Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers right © 2018 E eview under r lsevier B.V. A e ponsibility o ll rights reserve f the CINPAR d. 2018 organizer lsevier B.V. A esponsibility o ll rights reserve f the CINPAR d. 2018 organizer s s

ords: Conservati

on; Damage Map

; Restoration, Pa

thologies, Rural

Architecture.

Keyw

Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation.

* C E * C E

3216 Copyright evi w u er resp 3216 Copyright eview under resp orresponding aut -mail address : lu orresponding aut -mail address : lu

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B.V. All rights re CINPAR 2018 o B.V. All rights re CINP R 2018 o

served. rganizers. served. rganizers.

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt

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