PSI - Issue 5

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedire t.com ienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Struc ural Integrity 5 (2017) 1097–11 1 ScienceDirect Structural Integrity Procedia 00 (2017) 000 – 000 ScienceDirect Structural Integrity Procedia 00 (2017) 000 – 000

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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. 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal Mechanical Properties of Wood Construction Materials from a Building from the 19 th Century Patrícia C. Raposo a, *, José A.F.O. Correia a,b , Dinis Sousa c , Maria E. Salavessa c , Cristina Reis b,c , Carlos Oliveira b,d , Abílio de Jesus a,b a INEGI, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal b Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal c University of Trás-os-Montes e Alto Douro, apartado 1013 Quinta de Prados 5001-801 Vila Real d Polytechnic Institute of Viana do Castelo, Atlantic Avenue 4900-348 Viana do Castelo, Portugal Abstract Historic buildings are very important for the cultural identity of the humanity, so it’s important to preserve it. In order to better understand the behaviour of the woods, is necessary to perform experimental tests to obtain its mechanical properties. With the mechanical properties is possible to develop numerical models that can predict the behaviour of the structure, if well calibrated and verified, which re a viable base for structural design. The pr sent work presents the tests and results obtained fr m an experimental campaign in specimens of eucalyptus wood from a r of str ctural beam of a 19 th century masonry building, locate in the Felgueiras, P rtugal. Were performed tests of density and water content, tensile and compression strengths parall l to the fibers. © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. Keywords: Wood mechanical properties; Historic buildings; Wood structures; Masonry buildings. 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal Mechanical P operties of Wood Construction Materials from a Building from the 19 th Century Patrícia C. Raposo a, *, José A.F.O. Correia a,b , Dinis Sousa c , Maria E. Salavessa c , Cristina Reis b,c , Carlos Oliveira b,d , Abílio de Jesus a,b a INEGI, Faculty of Engineering, University f Porto, Rua Dr. Roberto Frias, 4200-465 Port , Portugal b Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal c University of Trás-os-Montes e Alto Douro, apartado 1013 Quinta de Prados 5001-801 Vila Real d Polytechnic Institute of Viana do Castelo, Atlantic Avenue 4900-348 Viana do Castelo, Portugal Abstract Historic buildings are very important for the cultural identity of the hu a ity, so it’s important to preserve it. In order to better understand the b haviour f the w o s, is necessary to perform experimental tests to obtain its mechani al properties. With the mecha ical properties is possibl to develop numerical m dels th t can pr dict the behaviour of th structure, if well calibrated and v r fied, which are a viable base for struct ral design. The present work presen s the tests and sults obtained fr m an exp rimental c mpaign in specim ns of eucalyptus wood from a roof s ruc ural b am of a 19 th c ntury masonry building, located in t Felgueiras, P rtugal. Were performed tests of density and water content, tensile and compression strengths parallel to the fibers. © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of he Scientific Committee of ICSI 2017. Keywords: Wood mechanical properties; Historic buildings; Woo structures; M sonry buildings. © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017

© 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.

2452-3216 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. 2452-3216 © 2017 Th Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. * Corresponding author. Tel.: +351 225082151; fax: +351 229537352. E-mail address: praposo@inegi.up.pt * Corresponding author. Tel.: +351 225082151; fax: +351 229537352. E-mail address: praposo@inegi.up.pt

* 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 PCF 2016. 2452-3216  2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017 10.1016/j.prostr.2017.07.087