PSI - Issue 6

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 S ructural Int grity 6 ( 7) 1–4 Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity 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. XXVII International Conference “Mathematical and Computer Simulations in Mechanics of Solids and Structures”. Fundamentals of Static and Dynamic Fracture (MCM 2017) Editorial Vadim Silberschmidt a , Yuri Petrov b,c, * a School of Mechanical and Manufacturing Engineering, Loughborough University, Leicestershire, Loughborough LE11 3TU, United Kingdom b Saint Petersburg State University, 7/9, Universitetskaya nab., St. Petersburg, 199034, Russia c IPME RAS, Extreme States Dynamics Department, V.O., Bolshoj pr., 61, St. Petersburg, 199178, Russia An increasing interest for theoretical and experimental studies of dynamic fracture driven by persistent and growing demand from practical and industrial applications underpins great success and continuing growth of the European Structural Integrity Soci ty Technical Committee 5 “Dynamics of Fracture and Structural T ransformation” (ESIS TC5) during the last five years. The reason for this is a need to understand, analyze and quantify a response of structures and components to various dynamic loading conditions in order to enhance and optimize their design. Such conditions differ principally from traditional, static or cyclic, ones that are mostly used in different regulations and standards as well as basis for analytical and numerical predictions. Dynamic loading is characterized by non-trivial spatio-temporal evolution of deformation and fracture mechanisms at various scale levels. So, the XXVII International Conference “ Mathematical and Computer Simulation in Mechanics of Solids and Structures ” MCM-2017 had a special topic - “ Fundamentals of Static and Dynamic Fracture ” . Organized and conducted by ESIS TC5 it St. Petersburg, Russia on 25-27 September, 2017, it is one of the most significant ESIS TC5 activities of the year. The The scope of the conference cov r wide range of top c falling within the fr mework of ESIS TC5 interests. The main topics of MCM-2017 are: • Numerical methods for problems of structural and continuum mechanics (science, practice and education); • Dynamics and strength of materials and structures; • Fluid and gas mechanics; • Problems of aeroelasticity; • Dynamic and static problems of stability; • Mechanics of elasto-visco-plasticity, da age and fracture of materials and structures; © 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. E-mail address: yp@YP1004.spb.edu

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452-3216 © 201 7 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the MCM 2017 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  2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the MCM 2017 organizers. 10.1016/j.prostr.2017.11.001