PSI - Issue 11

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 Structu al Integrity 11 (2018) 355–362 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000 – 000 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 In-situ experimental tests on masonry panels strengthened with Textile Reinforced Mortar composites Francesca Giulia Carozzi 1 * , Tommaso D’Antino 1 , Carlo Poggi 1 1 Department of Architecture, Built environment and Construction engineering ABC. Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milan (Italy) Textile Reinforced Mortar (TRM) composites are a retrofitting techniques used for strengthening masonry structures. The system is composed of dry fibers grids embedded in two layers of inorganic matrix. The paper describes the results of an in-situ experimental campaign on ancient masonry panels reinforced with different TRM systems. The tests were performed in a building located in Finale Emilia (north of Italy) built at the beginning of the last century. Four diagonal compressive tests were performed on unreinforced and reinforced walls. The walls were strengthened with different configurations: two panels were reinforced with a TRM systems composed of a lime morta and two different types of glass fiber grids and twist steel bars used as anchors; one panel was rei forced w th a layer of TRM on one side and a Nea Surface Mounted (NSM) system on the other on . The results f the tests are describ d and a complete mecha cal characterization of the reinforc ment systems and of the masonry was performed to analyze the experim ntal results and validate simple analytical models. Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Keywords: TRM materials, in-situ diagonal tests, masonry Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers XIV International Conference on Building Pathology and Constructions Repair – CINPAR 2018 In-situ experimental tests on masonry panels strengthened with Textile R inf rced Mo tar composites Francesca Giulia Carozzi 1 * , Tommaso D’Antino 1 , Carlo Poggi 1 1 Dep rtment of Architecture, Built environment and Construction engineering ABC. Politecnico di Milano, P azza Leo ardo da Vinci 32, 20133, Milan (Italy) Abstract Textile Reinforced Mortar (TRM) composites are a retrofitting techniques used for strengthening masonry structures. The system is composed of dry fibers grids embedded in two layers of inorganic matrix. The paper describes the results of an in-situ experimental campaign on ancient masonry panels reinf rced with differ nt TRM syst ms. The tests were performed in a building located in Finale Emilia (north of Italy) built at the beginning of the l st entury. Four diagonal compr ssiv tests were performed on unreinforced and reinforced walls. The walls were strengthe ed with different configurations: two panels w re reinforce with TRM sy tems compos d of a lime morta a d two diffe nt typ s of glass fiber grids and twist steel bars used as anchors; one panel was reinforced with a layer of RM on one side and a Near Surface Mounted (NSM) system n the other on . The results of the tests are described nd complet mechanical ch racterization of the r i forcement ystems an of t e masonry was rformed to a alyze the experimental r sults and validate simple nalytical models. Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers K ywords: TRM materials, in-situ diagonal tests, masonry Abstract

© 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.

* 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 CINPAR 2018 organizers. * Corresponding author. Tel.: 0223995108 E-mail address: francescagiulia.carozzi@polimi.it * Corresponding author. Tel.: 0223995108 E-mail address: francescagiulia.carozzi@polimi.it

2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016.

2452-3216 Copyright  2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers 10.1016/j.prostr.2018.11.046