PSI - Issue 11

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ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedire t.com Sci ceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 11 (2018) 444–451 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural I tegrity 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 The Corpus Domini Bell Tower: Conservation and Safety Mariateresa Guadagnuolo a *, Mariano Nuzzo b , Giuseppe Faella a a Dept. of Architecture and Industrial Design, Abbazia di San Lorenzo ad Septimum, via S. Lorenzo 1, 81031 Aversa (CE) Italy b Architect, Via Appia n° 86, 81028 S. Maria a Vico (CE) Italy The restoration project of the monumental bell tower of the Basilica del SS. Corpo di Cristo di Maddaloni stems from the desire to meet declared structural rehabilitation needs and architectural restoration of the monument. The project aims primarily to return static safety and to preserve the Campanile architectural quality, the work of acknowledged cultural interest. Masonry towers constitute a huge amount of the Italian built heritage. Therefore, their safety assessment against earthquakes has a significant social importance. They are unique architectural typologies, usually conceived in ancient time exclusively to withstand vertical loads. On the other hand, the recent national and international codes require the actual ultimate behavior of these t u ures under strong horizontal excitations to be deeply studied, encouraging the use of sophisticated non-linear methods. The mechanisms of damage and collapse of this type of structures are varied and depend on both the geometry (slenderness) and the structural characteristics (quality of masonry walls and constraints). Th d vel pment of mechanic l models able of analyzing the failure mechanisms for all types of bell towers is not always viable, so it is suggested to carry out specific checks too. This paper presents the restoration project and the results of seismic analysis carried out on a seventeen-century masonry tower in Italy, the “Corpus Domini” bell tower in Maddaloni (Italy). Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Keywords: Cultural Heritage; Seismic Safety; Bell Tower; Masonry; Repair Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review und r responsibility of the CINPAR 2018 organizers XIV International Conference on Building Pathology and Constructions Repair – CINPAR 2018 The Corpus Domini Bell Tower: Conservation and Safety Mariateresa Guadagnuolo a *, Mariano Nuzzo b , Giuseppe Faella a a Dept. of Architecture and Industrial Design, Abbazia di San Lorenzo ad Septimum, via S. Lorenzo 1, 81031 Aversa (CE) Italy b Archit ct, Via Appi n° 86, 81028 S. Maria a Vico (CE) Italy Abstract The restoration project of the monumental bell tower of the Basilica del SS. Corpo di Cristo di Maddaloni stems from the desire to meet declared structural rehabilitation needs and arc itectural restoration of the monument. The project aims primarily to return static safety and to preserve the Campanile architectural quality, the work of acknowledged cultural interest. Masonry towers constitute a huge amount of the Itali built heritage. Therefore, their safety a sessment against earthquakes has a significant social importance. They ar unique architectural typologies, usually conceiv d in ancient time exclusively to withstand vertical loads. On the other hand, the recent national and internation l codes require the a tual ultimate behavior of these structures under strong horizontal excitations to be deeply studied, ncouraging the use of sophisticated non-linear methods. The mechanisms of damage and c llaps of this type of structures ar varied and depend on both the geometry (sle derness) and the stru tural characteristics (quality of masonry walls and constraints). Th development f mechanical models able of analyzi g t failure mechanisms for all types f bell towers is not always viable, so it is suggested to carry out specific ch cks too. This paper presents the restoration project and the r sults of seismic analysis carried out on a seventeen-century masonry tower in Italy, the “Corpus Domini” bell t wer in Maddaloni (Italy). Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Keywords: Cultural Heritage; Seismic Safety; Bell Tower; Masonry; Repair Abstract

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 CINP R 2018 organizers. * Corresponding author. Tel.: 00390815010822; fax: 00390815010823. E-mail address: m.guadagnuolo@unicampania.it * Corresponding author. Tel.: 00390815010822; fax: 00390815010823. E-mail ad ress: m.guadagnuolo@unicampania.it

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