PSI - Issue 11

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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. 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In ntil today its ta the students torical an doc n existence. Th comprises the a ying process d lifestyle, mak blish guideline ateus Ros an, Ramã . de France ua Ernesto Barr llect and ident cal and graphic ry, valuing the ct and propos oeira do Sul (i guese citizen l 2016 it was lis af a. From thi and the profe umentary refer he second stage rchitectural su emonstrates n ing the invento s for future int ify all the infor record of the property, whic es to present n Brazilian stat iving in Brazil ted as a histori s act on the ma ssors of the F ence stage, wh comprises the urvey, where it ot only the cu ry an importa erventions in th ni N. Lens , Carlos G eira do Sul, RS, 9 mation about a property, is also h automaticall the inventory p e of Rio Grand l. 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Startin our original do ing. At le st, t n of the buildin a pictur of the people, it serv action, it’s fun esides being a f preserving co art of a larger ed in the munic osé Vieira da sava mill, call ct that it has u arried out by g from the his cuments still i he third stage g. This surve materiality and es even to esta iza Wollm nardo I. G choeira do Sul, R damental to co a kind of histori llective memo r r search proje ipality of Cach Cunha, a Portu ed “tafona”. In til today its ta the stude ts torical and doc n existence. Th comprises the a ying process d lifestyle, mak blish guideline ateus Ros an, Ramã . de France ua Ernesto Barr llect and ident cal and graphic ry, v luing t e ct and propos oeira do Sul (i guese citizen l 2016 it was lis fona. From thi and the profe cumentary ref r e second stage rchitectural su emonstrates n ing the invento s for future int ify all the infor record of the property, whic es to present n Brazilian stat iving in Brazil ted as a histori s act on the ma ssors of the F ence stage, wh comprises the rvey, where it ot only the cu ory an importa erventions in th ni N. Lens , Carlos G eira do Sul, RS, 9 mation about a property, is also h automaticall t e inventory p te of Rio Grand . At the time, cal patrimony o ain house and th ederal Univers ere the origin photographic is p ssible to b rrent architect nt document fo e pr perty in c 6.506-280, Braz a particular pro an effective m y i duces to re rocess of the e do Sul – RS) it became know f the Rio Gran e contiguous t sity f Santa M of the building survey, interna become aware tural f atures r later consulta ase. il, perty. ans spect main ). The wn as de do afona aria, was l and of the f t tions

© 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. right © 2018 E review under r lsevier B.V. A esponsibility o ll rights reserve f the CINPAR ed. 2018 organizer 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 esponsibility o ll rights reserve f the CINPAR d. 2018 organizer s

Copy Peer Copy Peer Keyw Keyw

ords: Cultural he ords: Cultural he

ritage; Architectu ritage; Architectu

ral inventory; Ru ral inventory; Ru

ral architecture; ral architecture;

Survey. Survey.

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: bru orresponding aut -mail address: bru

33748410. owslive.com 33748410. owslive.com

2452 Peer-r 2452 Peer-r

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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