PSI - Issue 5

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedirect.com cienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Struc ural Integrity 5 (2017) 1147–1152 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. Non-Destructive Structural Wood Diagnosis of a Medieval 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 Abstract This work seeks to demonstrate the role of non-destructive inspection and diagnosis techniques, trying to find a simple and expeditious supporting decision maintenance/rehabilitation or replacement. The evaluation of the state of conservation of the structures can be made with non-destructive testing to obtain the resistance of the wood structural elements. The case-study is the Gralheira Inn, "Pousada Medieval da Gralheira" in Portugal, which is an example of the antique constructed buildings in the region of Trás-os-Montes. The owners of the heritage buildings neglect it leading to accentuated degradation, making the recovery and rehabilitation interventions, complex. An inspection and diagnosis was carried out to assess the current state of structure conservation and to know the mechanical characteristics, were performed non-destructive tests, using the resistograph and humidimeter. © 2017 The Authors. Published by Elsevier B.V. Peer-review und r responsibility of the Scientific Committee of ICSI 2017. Keywords: Masonry structures; Wood Structures; Non-Destructive Diagnosis; R habilitation; P thological characterization. 1. Introduction The development and occupation of old city centers are their physical history testimony [1]. Human adaptation to the physical environment, generates unique urban scenes [2]. The structure and materials knowledge of a building 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal Non-Destructive Structural Wood Diagnosis of a Medieval 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 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 This work seeks to demonstrate the role of non-des ructive ins ection and diagnosis echniques, trying to fi d a s mple and expeditious supporting decisi maintenance/rehabilitation or replacement. T evalua ion of the state of conservation of st uctures can be made with non-destructive testing to obtain the resistance of the wood structural elements. The ca e-study is the Gralheira Inn, "Pousada Medieval da Gralheira" in Portugal, which is an example of the antique constructed buildings in th egion of Trás-os-Montes. The owners of the heritage buildings neglect it leading to accent ated degrada ion, making he recovery and rehabilitatio i terventi ns, complex. An inspection and diagnosis was carried ou to asses the current state of structure conservation and to know the mechanical characteristics, were performed non-destructive tests, using the resistograph and humidimeter. © 2017 The Autho s. Publ shed by Elsevier B.V. Peer-review under responsibility of the Scientific C mmittee of ICSI 2017. Keywo ds: Masonry structures; Wood Structures; Non-Destructive Diagnosis; Reh bilitation; Patholog cal characterization. 1. Introduction T e developme t and occupation of old city centers are their phy ical history testimony [1]. Human ad ptat on to the physical environment, generates unique urban scenes [2]. The structure and materials knowledge of a building © 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. 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal

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.2017.07.024 * 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