PSI - Issue 2_A

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedire t.com cienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 2 (2016) 001– 02 ScienceDirect Structural Integrity Procedia 00 (2016) 000–000 Structural Integrity Procedia 00 (2016) 000–000 Available o line at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2016) 000–000

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www.elsevier.com/locate/procedia 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. 21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy Editorial Francesco Iacoviello a *, Luca Susmel b , Donato Firrao c , Giuseppe Ferro c a Università di Cassino e del Lazio Meridionale, via G. Di Biasio 43, 03043 Cassino (FR) Italy b University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK c Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. For the second time in the history of ESIS, the biennial European Conference of Fracture (ECF) was organized in Italy. In 1990 the ECF was held in Turin, in the northern Italy. Twenty-six years later, the picturesque Sicilian city of Catania hosted the 21 st European Conference of Fracture (ECF21). Sicilian ECF21 was characterized by some unique features. Among them, this conference was the first one with the proceedings being published in Procedia Structural Integrity , Elsevier’s open access on-line repository covering Fracture, Fatigue and Structural Integrity. Furthermore, during the conference, the drafts of the proceedings papers as well as relevant organizing information were shared with the participants by equipping them with tablets. This allowed us to minimize the usage of paper, turning ECF21 into the very first “green” conference ever run by ESIS. We do hope that these two key aspects together with some other unique organizational peculiarities gave to the participants a lot of good memories to be brought home, such good memories together with the friendly hospitality of the Sicilians, the blue of the Sicilian sea and the aroma of the Sicilian evenings being with the ECF participants for a long time. Selecting the plen ry peak s was not a simple task, since the fracture community offers a great choice of outstanding researc ers. T identify our esteemed plenary speakers, we used th following criteria: the plenary speakers had to be different from those attending the previous editions of the ECF, a uniform “geographical” distribution (trying to avoid geographical “polarization”) and, last, but not least, a close connection with the Italian Group of Fracture (www.gruppofrattura.it) – i.e., the Italian representative of ESIS that organized ECF21. This 21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy Editorial Francesco Iacoviello a *, Luca Susmel b , Donato Firrao c , Giuseppe Ferro c a Università di Cassino e del Lazio Meridionale, via G. Di Biasio 43, 03043 Cassino (FR) Italy b University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK c Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. For the second time in the history of ESIS, the biennial European Conference of Fracture (ECF) was organized in Italy. In 1990 the ECF was held in Turin, in the northern Italy. Twenty-six years later, the picturesque Sicilian city of Catania hosted the 21 st European Conf re ce of Fracture (ECF21). Sicilian ECF21 was characterized by some unique features. Among them, this conference was the first one with the proceedings being published in Procedia Structural Integrity , Elsevier’s open access on-line repository covering Fracture, Fatigue and Structural Integrity. Furthermore, during the conference, the drafts of the proceedings papers as well as relevant organizing information were shared with the participants by equipping them with tablets. This allowed us to minimize the usage of paper, turning ECF21 into the very first “green” conference ever run by ESIS. We do hope that these two key aspects together with some other unique organizational peculiarities gave to the participants a lot of good memories to be brought home, such good memories together with the friendly hospitality of the Sicilians, the blue of the Sicilian sea and the aroma of the Sicilian evenings being with the ECF participants for a long time. Selecting the plenary speakers was not a simple t sk, sinc the f acture community offers a great choice f outstan ing researchers. To identify our esteemed plenary speakers, we used the followi g crit ria: the pl nary speakers had to be different from those attending the previous editions of the ECF, a uniform “geographical” distribution (trying to avoid geographical “polarization”) and, last, but not least, a close connection with the Italian Group of Fracture (www.gruppofrattura.it) – i.e., the Italian representative of ESIS that organized ECF21. This 21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italy Editorial Francesco Iacoviello a *, Luca Susmel b , Donato Firrao c , Giuseppe Ferro c a Università di Cassino e del Lazio Meridionale, via G. Di Biasio 43, 03043 Cassino (FR) Italy b University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK c Politecnico di Torino, Corso Duca degli A ruzzi 24, 10129, Torino, Italy © 2016 Th Authors. Published by Els vier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. For th second time in the history of ESIS, the biennial European Conferenc of Fracture (ECF) was rganiz d in Italy. In 1990 th ECF was held in Turin, in the northern Italy. Tw nty-six years later, the pictur sque Sicilian city of Catania hosted the 21 st European Conference of Fracture (ECF21). Sicilian ECF21 was c aracterized by some unique features. Among them, this conference was th first one with the pr ceedings being published in Procedia Structural Integrity , Elsevier’s pen access on-line repository covering Fracture, Fatigue and Structural Integrity. Furthermore, during the conference, the drafts of the proceedings papers as w ll as relevant organizing information were shared with t participants by equipping t em with tablets. Thi allowed us to minimize the usage of paper, turning ECF21 into the very rst “green” conf rence ever run by ESIS. We do hope that these two key aspects together with ome other unique organizational peculiarities gave to the participa ts a lot of good memories to be brought home, such good memories together with the friendly hospitalit of the Sicilians, the blue of the Sicilian sea and the aroma of the Sicilian evenings being with the ECF participants for a long time. Selecting the plenary speakers was not a simple task, since the fracture community offers a great choice of outstanding researchers. To identify our esteemed plenary speakers, we used the following criteria: the plenary speakers had to be different from those attending the previous editions of the ECF, a uniform “geographical” distribution (trying to avo d geographi al “polarization”) and, last, but not least, a close connection with the Italian Group of Fracture (www.gruppofrattura.it) – i.e., the Italian representative of ESIS that organized ECF21. This Copyright © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/lic nses/by-nc-nd/4.0/). Peer-review under respon ibility of the Scientifi Committee of ECF21. © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016.

Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation. * Corresponding author. Tel.: +39.07762993681; fax: +39.07762993781. E-mail address: iacoviello@unicas.it

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. 2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. 2452-3216 © 2016 The Auth rs. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ECF21. * Corresponding author. Tel.: +39.07762993681; fax: +39.07762993781. E-mail address: iacoviello@unicas.it * Corresponding author. Tel.: +39.07762993681; fax: +39.07762993781. E-mail address: iacoviello@unicas.it

2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Copyright © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ). Peer review under responsibility of the Scientific Committee of ECF21. 10.1016/j.prostr.2016.06.001