PSI - Issue 5

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 Struc ural Integrity 5 (2017) 1141–1146 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2017) 000 – 000 Available online at www.sciencedirect.com 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 Numerical Modelling of a Wood Pavement of a 13 th Century Building Patrícia C. Raposo a,b, *, Michael Andrade c , José A.F.O. Correia a,b , Maria E. Salavessa c , Cristina Reis a,b,c , Carlos Oliveira a,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 The present work is based on a numerical study of a wood pavement of a Pousada medieval da Gralheira in Vila Real, Portugal, which is an example of the constructed patrimony of Trás-os-Montes. The negligence in the preservation of historic buildings lead to the current advanced state of deterioration, which implies a complex rehabilitation process. The features obtained in a visual inspection of the building and experimental campaign in wood specimens, made it possible to develop and calibrate a numerical model of the wood floor between the ground and first floors, of the Inn, to analyze the behavior of the structure in terms of serviceability limit state, so with a numerical model, one can predict the real behavior of the structure. The numerical models are powerful tools to aid in the structural design. © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. Keywords: Numerical modelling; Wood structures; Historic buildings; Masonry structures. 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal Numerical Modelling of a Wood Pavement of a 13 th C ntury Building Patrícia C. Raposo a,b, *, Michael Andrade c , José A.F.O. Correia a,b , Maria E. Salavessa c , Cristina Reis a,b,c , Carlos Oliveira a,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, 4200-46 Porto, Portugal c University of Trás-os-Montes e Alto Douro, apartado 1013 Quinta de Prados 5001-801 Vila Re l d Polytechnic Institute of Viana do Castelo, Atlantic Avenue 4900-348 Viana do Castelo, Portugal Abstract T e prese t work is based on a n m ric l study of a wood pavem nt of a Pousada medieval da Gr lheira in Vila Real, Portug l, which is an ex mple of the constructed p rimony of Trás-os-Montes. The negligence in the preservation of historic buildings lead to the current advanced state of d terioration, which implies a complex rehabilita ion process. Th features obtain d i a visu inspection of the building and xperimental campaign in wood specime s, made it possible to develop and calibrat a numerical model of the wood floor between the g ound and first floors, of the Inn, to analyze the behavior of t structure in terms of serviceability limit state, so with a numerical model, one can predict the real behavior of the structure. The numerical models are powerful tools to aid in the structural design. © 2017 The Autho s. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. Keywords: Numerical modelling; Wood structures; Historic buildings; Masonry structures. © 2017 The Authors. Published by Elsevi r 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. 1. Introductio The built heritage is a physical testimony of the history of ld city centers [1]. There is been an effort, in the last years, 1. Introduction The built heritage is a physical testimony of the history of old city centers [1]. There is been an effort, in the last years, Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation. Abstract

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.2017.07.021 * Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452 3216 © 2017 Th Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. 2452-3216 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. * Correspon ing 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