PSI - Issue 3

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedire t.com ScienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia S ructural Int grity 3 ( 7) 1–2 Structural Integrity Procedia 00 (2017) 000–000 Available o line at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2017) 000–000 ScienceDirect Structural Integrity Procedia 00 (2017) 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. XXIV Italian Group of Fracture Conference, 1-3 March 2017, Urbino, Italy Editorial Franc sc Iacovi llo 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 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co. According to its Statutes, Gruppo Italiano Frattura (the Italian Group of Fracture, IGF) is a cultural association that is devoted to:  spreading and promoting the results from those research activities specifically focussed on fracture phenomena, with this being done also with the support of ad hoc workgroups;  promoting activities aiming to develop material/structure testing standards;  cooperating with foreign associations operating in the the fracture field (International Congress on Fracture, ICF; European Structural Integrity Society, ESIS; etc.);  organizing meetings, workshops, conferences and courses about fracture phen mena  publishing meeting/wo kshops/conferen e proceedings, news, journal et .;  implementing those activities that are aligned with the association’s aims and scopes. Since 1981, the IGF conferences are among the most important scientific/technical meetings focussing on “fracture” and “structural integrity” that are organized in Italy every year. The topics of the presentations being delivered range from concrete to stainless steels and from stones to polymers. By considering different loading or environmental conditions, they tackle the fracture is ue from d fferent angles (analytical, numerical, experimental, etc.), investigating the phenomena of int rest from a micro-level up to a “full scale” level. The fact that the IGF covers such a wide area of interest makes it difficult for the “typical” IGF member to be described… a metallurgist or a materials scientist? A civil XXIV Italian Group of Fracture Conference, 1-3 March 2017, Urbino, 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 Politecnic di Torino, Corso Duca degli Abruzzi 24, 10129, T rino, Italy © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co. According to its Statutes, Gruppo Italiano Frattura (the Italian Group of Fracture, IGF) is a cultural association that is devoted to:  spreading and promoting the results from those research activities specifically focussed on frac ure phenomena, with this being done also with the support of ad hoc workgroups;  promoting activities aiming to develop material/structure testing standards; cooperating with f reig associations operating in the th fracture field (Int rnational C ngr ss Fracture, ICF; European Structural Integrity S cie y, ESIS; etc.); o ganiz ng meeting , workshops, conferences and courses about fracture phenomena publishing meeting/workshops/conference proceedings, news, journa etc.;  implementing those activities that are aligned with the association’s aims and scopes. Since 1981, the IGF conferences are mong t most imp tant scientific/technical meeti gs focussing on “fracture” and “structural integrity” that ar organ zed in Italy every year. T topics of the presentations b ing delivered range from concrete to stainless steels and from stones to polymers. By considering different loading or environmental conditions, they tackle the fracture issu from different angle (analy ical, numerical, experimental, et .), nvestigating the phenomena of rest from micro-lev l up o a “full scale” level. The act that the IGF covers such a wide area of interes makes it difficult for the “typical” IGF memb r to be described… a metallurgist or a mate ials scientist? A civil XXIV Italian Group of Fracture Conference, 1-3 March 2017, Urbino, 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 © 2017 Th Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co. Accor ing to its Statutes, Gruppo Italia o Frattura (the Italian Group f Fracture, IGF) is a cultural association that is devoted to:  spreading and promoting the results from those research activities specifically focussed on fracture henomena, with this bei g done also with the supp rt of ad hoc workgroups;  r moting activities aiming to develop material/structure testing standards; co p rating with for ign associations operating in th th fracture field (International Congress on Fractur , ICF; European Structural Inte rity Society, ESIS; etc.); organizi ti gs, workshops, conferences and courses about fracture phenomena publishing meeting/workshops/conference proceedings, news, j urnal etc.;  implementing those activities that are aligned with the association’s aims and scopes. Since 1981, th IGF c nferences ar among th most importa t scientific/t c nical meetings focussing on “fr cture” a d “structural integrity” th t ar rganized in Italy ev ry year. The topics of the presentations being deliver d range from concrete to stainless teels and from ton s to polymers. By considering different loading or environmental conditions, they tackle the fracture issue from different angles (analytical, numerical, experimental, etc.), investigating the ph nomena of interest from a micro-level up to a “full scale” level. The fact that the IGF covers such a wide area of interest makes it difficult for the “typical” IGF member to be described… a metallurgist or a materials scientist? A civil © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Copyright © 2017 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 IGF Ex-Co. 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 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co. 2452-3216 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co. * 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 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of IGF Ex-Co.

2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Copyright © 2017 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 IGF Ex-Co. 10.1016/j.prostr.2017.04.001