PSI - Issue 11

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) 145–152 Available online at www.sciencedirect.com Sc i enceDi r ect Structural Integrity Procedia 00 (2018) 000–000 Available online at www.sciencedirect.com Sc i enceDi r ect 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 Evaluation of steel slag of Companhia Siderúrgica do Pecém replacing fine aggregate on mortars Stefanie A. Campos a , Maria F. C. Rafael a , Antônio E. B. Cabral a* a Universidade Federal do Ceará, Pós-Graduação em Engenharia Civil: Estruturas e Construção Civil, Campus do Pici – Bloco 728, Fortaleza, 60455-900, Brazil Abstract The steel slag is one of the sub products of steel mills that causes environmental impacts due to the large volume generated. This work analyzes the reuse of this material from Companhia Siderúrgica do Pecém in partial substitution to fine aggregate in execution of mortar coatings. With this purpose, the steel slag characterization was performed according to normative criteria, regarding chemical, physical and mineralogical properties, demonstrating that the material is inert. Also, slag’s expansion was analyzed, observing its low expansion. The tests were performed with the mortar in fresh and hardened conditions, for volume mix of 1:5 (cement: fine aggregate) and with partial replacement of 0, 10, 20 and 30% of fine aggregate by volume. Statistical analyzes of results demonstrat satisf ctory values for mixes with up to 20% substitution for stren th requirements in flexi and com ression. Thus, the feasibility of use of steel slag as a aggregate in coating mortars is verified, with partial replacement of fine aggregate by up to 20%, making feasible its use in civil construction. Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Keywords: Steel slag; mortars; civil construction. Copyright © 2018 Elsevier B.V. All rig ts reserved. Peer-review under responsibility of the CINPAR 2018 organizers XIV International Conference on Building Pathology and Constructions Repair – CINPAR 2018 Evaluation of steel slag of Companhia Siderúrgica do Pecém placing fine aggregate on mortars Stefanie A. Campos a , Maria F. C. Rafael a , Antônio E. B. Cabral a* a Universidade Federal do Ceará, Pós-Graduação em Engenharia Civil: Estruturas e Construção Civil, Campus do Pici – Bloco 728, Fortaleza, 60455-900, Brazil Abstract The steel slag is one of the sub products of steel mills that causes environmental impacts due to the large volume generat d. This work analyzes the reuse of this ma erial from Companhia S derúrgica do Pecém in partial substitution to fine aggreg te in execution of mortar co tings. With this purpose, the steel sl g chara terization w s performed according to normativ criteria, regarding hemical, physical and mineralogica properties, d monstrating that the m terial is inert. Also, slag’s expansio was an yzed, observing its w ex ansion. Th test were performed with the mortar in fresh nd harde ed conditio s, for volume mix of 1:5 (c me t: fine aggregate) and with partial replace ent of 0, 10, 20 an 30% f fine aggregate by volume. Statistical a alyzes of results demonst ate satisfactory values for mixes with up to 20% substitution for strength requireme ts in flexion and co pression. Thus, he feasibility of us of s eel slag as an aggregate in coa ing mo tars is v rified, with partial replac ment of fine aggreg te by up to 20%, making feasible its use in civil nstruction. Copyright © 2018 Elsevier B.V. All rights reserved. Peer- eview under responsibility of the CINPAR 2018 organizers Keywords: Steel slag; mortars; civil construction. © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. Ove th ce tu i , popu ati n growth has beco e significant, science and technology have developed quickly, generating complex systems to meet growing consu er demand. Humanity has xperienced paradigm, in which it Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation. Over the centuries, population growth has become significant, science and technology have developed quickly, gen rating compl x systems to m et grow g consumer demand. Humanity has experienced a paradigm, in which it 1. Introduction 1. Introduction

* Corresponding author. Tel.: +55-85-3366-9607. E-mail address: eduardo.cabral@ufc.br * Corresponding author. Tel.: +55-85-3366-9607. E-mail address: eduardo.cabral@ufc.br

* 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.

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.2018.11.020