PSI - Issue 11

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ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedire t.com ScienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 11 (2018) 379–387

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V Internati Analysi V Internati Analysi

onal Confer s of the c uerriero* Doctor of Archit onal Confer s of the c uerriero* Doctor of Archit

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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. typif rever space mate techn injec abutm bilate rock capab histo Luigi G ract analyzed topic d, the contents ct, it was nece odologies that tests, and the ication of the w sibility and dis as a music ro rials, capable iques used to tions of hydrau ents, and the ral trolleys, th wool panels an le to fully me ricized matter, concerns the f of the aforem ssary to identi would allow deformability a alls, the floors tinctiveness. T om, improving to integrate wi repair and str lic lime morta creation of a m rough dynamic d an underbod et the tenderin for a new r le inal design for entioned impro fy detection an the adequate v nd strength ana and the vaults he main objec its acoustics, c th the existing engthen the st rs, sifted volca acro-truss, en constraints (s y slab, and cor g nee s, for in th urban fab the late Baroq vement projec nd diagnostics t alorization and lysis of the ma . The intervent tive of the pro limate mitigati g structure. Re ructure were: nic sand and z tirely isostatic, hock transmitte ten-steel nodes a rational reco ric. ue church of t ct will be illust techniques to c d the historical asonry for a cor ions are based ject was the fu on and static b garding the co replacement of eolite; consolid connected to t rs), equipped . This technica onfiguration of acchio and iversity of Campa he Holy Spirit ated. Followin orrectly analys preservation, rect seismic an on a methodol nctional and n ehavior, throug herence and e the armed se ation of the va he longitudina with a ventilat l solution has the monument in Aversa (CE g a total reval e the monumen through endos alysis and the m ogical perspect ormative adjus h dedicated int ffectiveness of ams with harm ults with extra l walls with cy ted roofing pac allowed the rea al complex wi Tomeo ) restoration. I luation of the t t, with interve copic examina ensiochronolo ive of compatib tment of the s nterventions and consolidation onic steel tie adossal chains ylindrical hinge kage made of alization of a p thout sacrificin n this tender ntion tions, gical ility, acred light s, the -rods; in the s and larch, roject ng its Abst The regar proje meth sonic typif rever space mate techn injec abut bilate rock capab histo Luigi G ract analyzed topic d, the contents ct, it was nece odologies that tests, and t e ication of the w sibility and dis as a music ro ri ls, capable iques used to tions of hydrau ents, and the ral trolleys, th wool panels n le to fully me ricized ma ter, concerns the f f the afor m ssary to identi would allow deformability a alls, the floors tinctiveness. T om, improving to integrate wi repair and str lic lime morta creation of a m rough dynamic d an underbod et th tenderin for a new role inal design for entioned impro fy detection an the adequate v nd strength ana and the vaults he main objec its acoustics, th the existing engt en the st rs, sifted volca acro-truss, en constraints (s y slab, nd cor g n eds, for in the urban fab the late Baroq vement projec d diag ostics t valorization and lysis of the ma . The intervent tive of the pro limate mitigati structure. Re truct re were: ni sand and z tirely isostatic, hock transmitte ten-st el nodes a rational reco ric. ue church of t t will be illust techniqu s to c d t e historical asonry for a cor tions are b sed ject was the fu on and static b garding the co replacement of eolite; consolid connected to t rs), equipped . This technica nfiguration of he Holy Spirit rated. Followin orr ctly analys preserv tion, rect s ismic an on a methodol nctional and n ehavior, throug herence and e the armed se ation of the va he longitudina with a ventilat l solution has t e monument in Aversa (CE g a total reval e the monumen through endos alysis and the m ogical perspect ormative adjus h dedicated int ffectiveness of ams with harm ults wit extra al walls with cy ed roofing pac allow d the rea al complex wi Tomeo ) restoration. I uation of the t nt, with interve copic examina ensiochronolo ive of ompatib tment of the s erventions and consolidation onic steel tie adossal chains lindrical hi ge ckage made of alization of a p ithout sacrifi in n this ender ention tions, gical ility, acred light s, the -rods; in the s and larch, roject g its Abst The regar proje meth sonic

© 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Copy Peer right © 2018 E review under r lsevier B.V. A esponsibility o ll rights r serve f the CINPAR d. 2018 organiz r s Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers right © 2018 E review under r lsevier B.V. A esponsib lity o ll rights reserve f the CINPAR d. 2018 organizer s Copy Peer

ords: methodolo

gies, valorization

, historical prese

rvation, consolid

ation, shock tran

smitters

Keyw Keyw

Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation. ords: methodolo gies, valo ization , historical prese rvation, consolid ation, shock tran s itters

* C E Corresponding aut -mail address: lu orresponding aut E-mail ad ress: lu * C E

9-6630596;. icampania.it 9-6630596;. icampania.it

2452 Peer-r 2452 Peer-r

3216 Copyright evi w u er resp 3216 Copyright eview under resp

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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