PSI - Issue 13

First page Table of contents Previous page 3 Next page Last page

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedire t.com ienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 P o edia Structural Int gr ty 13 (2018) 1–2 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000 ScienceDirect Structural Integrity Procedia 00 (2018) 000–000

www.elsevier.com/locate/procedia

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. ECF22 - Loading and Environmental Effects on Structural Integrity Editorial A. Sedmak a, *, M. Rakin b , Z. Radaković a a Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, Belgrade, Serbia b Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, Serbia Probably only few would remember that Serbia was already involved in European Conference of Fracture (ECF) organization. It was not destined to happen in ex-Yugoslavia, back in 1992, but it has happened in Varna, Bulgaria, instead, organized as mission impossible by Prof. Stojan Sedmak, from Belgrade. Interestingly enough it was after Italy, ECF8 in Turin, 1990, just like this one, after Catania, ECF21, in 2016. I have been involved in organization of ECF9, and it is maybe right moment to say now thank you Italy, thank you Donato Firrao for your help in early nineties, and thank you Francesco Iacoviello for everything you did to make ECF22 successful event. Anyhow, let me also emphasize one significant difference. Namely, organizing ECF9 was tedious job because of hardly any communication with outside world, and except Donato, it was only Stefan Vodenicharov and his team from Bulgaria, whom I remember as big help. On the contrary, ECF22 was a straightforward job, since we just followed great successes of Kazan in 2012, Trondheim in 2014 and Catania in 2016, relaying strongly on support of not only chairmen of three preceding conferenc s (Valery Shlyannikov, Zhiliang Zhang and Francesco Iacoviello), but lso on many other ESIS m mbers, actually too many to be listed here. C incidently or not, these Conferenc s ha pened during th presidency of L slie Banks-Sills. Well, fin tely not a coincidenc , since the first female officer in ESIS history was also the best ver president, if I may say. © 2018 The Authors.Published by Elsevier B.V. Peer-review und r responsibil ty of the ECF22 organizers. © 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers. ECF22 - Loading and Environmental Effects on Structural Integrity Editorial A. Sedmak a, *, M. Rakin b , Z. Radaković a a Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, Belgrade, Serbia b Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, Serbia Probably only few would remember that Serbia was already involved i European Conference of Fracture (ECF) organization. It was not destined to happen in ex-Yugoslavia, back in 1992, but it has happened in Varna, Bulgaria, instead, organized as mission i possible by Prof. Stojan Sedmak, from Belgrade. Interestingly enough it was after Italy, ECF8 in Turin, 1990, just like this one, after Catania, ECF21, in 2016. I have been involved in organization of ECF9, and it is maybe right mom nt to say now thank you Italy, thank you Donato Firrao for your help in early nineties, and thank you Francesco Iacoviello for everything you did to make ECF22 successful event. Anyhow, let me also emphasize one significant difference. Namely, organizing ECF9 was tedious job because of hardly any communication with outside world, and xcept Donato, it was only Stefan Vodenicharov and his te m from Bulgaria, whom I remember as big help. On the contrary, ECF22 was a straightforward job, since we just followed great successes of Kazan in 2012, Trondheim in 2014 and Catania in 2016, relaying strongly on support of not only chairmen of three preceding conferences (Valery Shlyannikov, Zhiliang Zhang and Francesco Iacoviello), but also on many other ESIS members, actually too many to be listed here. Coincidently or not, these Conferences happened during the presidency of Leslie Banks-Sills. Well, definitely not a coincidence, since the first female officer in ESIS history was also the best ever president, if I may say. © 2018 The Authors.Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers. Keywords: Laser shot peening; Nimonic; Macrostructural surface tests.

Keywords: Laser shot peening; Nimonic; Macrostructural surface tests.

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

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452-3216 © 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers. 2452-3216 © 2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers. * Corresponding author E-mail address: aleksandarsedmak@gmail.com * Corresponding author E-mail address: aleksandarsedmak@gmail.com

2452-3216  2018 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ECF22 organizers. 10.1016/j.prostr.2018.12.001

Made with FlippingBook. PDF to flipbook with ease