PSI - Issue 11

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ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedire t.com ienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 11 (2018) 153–16 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 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. XIV International Conference on Building Pathology and Constructions Repair – CINPAR 2018 Seismic structural upgrade of historical buildings through wooden deckings strengthening: the case of study of Palazzo Ducale in Parete, Italy Prof. Ing. Giorgio Frunzio a , Ing. Luciana Di Gennaro b * a Department of Architecture and Industrial Design, Università degli Studi della Campania "Luigi Vanvitelli", Abbazia di San Lorenzo d Septimum 81031 Av rsa (CE), Italy b CO .GE.P.AR. Costruzioni Generali sas, Via delle Legioni 8/A - 80125 - Napoli, Italy Aim of this article is to study the structural improvement of a historical wooden deckings using additional wood structural members and wood restoration techniques. Renovation of historic constructions, often performed for intended new use of buildings, cannot and must not disregard the conservation not only of the elements function, but also of materials and construction techniques. They all represent, indeed, an inestimable cultural heritage. In this context, it is paramount to seek structural improvements in deformation and strength capacity of wooden structures through the use of modern techniques compatible in typology with the original materials and construction techniques. This paper presents the case study of the wooden deckings restoration in the "Palazzo Ducale di Parete", Italy. The palace, located in the historical centre of the city of Parete in the province of Caserta, is composed of a central core (defensive tower), built probably between XI and XII century, and adjaciance blocks added in the following centuries. Apart from the central tower that rises above the rest of the palace, the building is comprised of three levels above the ground and a mezzanine. The wooden deckings were probably built before the 1700 with chestnut wood and made of a primary beam system of 25 cm diameter circular section beams, and a secondary floor distribution system with semicircular transversal elements named "panconcelle" loosely connected to beams. Structural improvement intervention consisted in the realization of a double timber crossed plank in chestnut wood, connected to principal frame through metal cylindrical shank pins, suitably sized. Where possible, the "panconcelle" were not removed from their seat to preserve the original intrados view of the floors. Following c cks pre and post intervention XIV International Conference on Building Pathology and Constructions Repair – CINPAR 2018 Seismic structural upgrade of historical buildings through wooden deckings strengthe ing: the case of study of Palazzo Ducale in Parete, Italy Prof. Ing. Giorgio Frunzio a , Ing. Luciana Di Gennaro b * a Department of Architecture and Industrial Design, Università degli Studi della Campania "Luigi Vanvitelli", Abbazi i San Lorenzo ad Septimum 81031 Aversa (CE), Italy b CO .GE.P.AR. Costruzion Generali sas, Via dell Legioni 8/A - 80125 - Napoli, Italy Abstract Aim of this article is to study the structural improvement of a historical wooden deck ngs using additional wood structural me bers and wood restoration techniques. Renovation of historic constructi ns, often performed for intended new se of buildings, cannot and must not disregard the conservation not only of the elements function, but also of materials and construction techniques. They all represent, indeed, an inestimable cultural heritage. In this c ntext, it is para ount to seek structural improvements in deformation and strength capacity of wooden structur s through the use of modern techniques compatible in typology with the original materials and construction techniques. This paper presents the case study of the wooden deckings restorati n in the "Palazzo Ducale di Parete", Italy. The palace, located in the historical centre of the city of Parete i the province of Caserta, is composed of a central core (defensive tower), built probably between XI and XII century, and adjaciance blocks dded in the following centuries. Apart from the central tower that rises above the rest of the palace, the building is comprised of three levels above the ground and a mezzanine. The wooden deckings were probably built before t 1700 with chestnut wood and made of a primary beam system of 25 cm diameter circular section beams, and a secondary floor distribution system with semicircular transversal elements named "panconcelle" loosely conn cted to beams. Structural improvement int rvention consisted in the realization of a double timber crossed plank in chestnut woo , c nnected to princip l frame through metal cyli drical shank pins, suitably sized. Wh re possible, th " nconcelle" were n t removed from their e t to pr s rve the original in rados view of the floors. Following c ecks pre and post intervention Abstract

© 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under sponsibility of the CINPAR 2018 organizers Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Keywords: structural improvement, historic construction, ancient wooden deckings; Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation. Keywords: structural improvement, historic construction, ancient wooden deckings; * Corresponding author. Tel.: +39 081 05010 828; fax: +38 178 6020267. E-mail address: giorgio.frunzio@unicampania.it ; ing.lucianadigennaro@gmail.com * Corresponding author. Tel.: +39 081 05010 828; fax: +38 178 6020267. E-mail address: giorgio.frunzio@unicampania.it ; ing.lucianadigennaro@gmail.com

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452-3216 Copyright © 2018 Elsevier B.V. All rights reserved. Peer-revi w u er responsibility of the CINPAR 2018 organizers. 2452-3216 Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINP R 2018 organizers.

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