PSI - Issue 11

First page Table of contents Previous page 46 Next page Last page

A A

vailable onlin Scie Structural Integ vailable onlin Scie Structural Integ

e at www.scie enceDir rity Procedia 00 ( e at www.scie nceDir rity Procedia 00 (

ncedirect.com ect 2018) 000–000 ncedirect.com ect 2018) 000–000

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Structu al Integrity 11 (2018) 122–129

www.elsevier. www.elsevier.

com/locate/proce com/locate/proce

dia dia

www.elsevier.com/locate/procedia

XI XI

V Internati Behavio V Internati Behavio

onal Confer or of gal onal Confer or of gal

ence on Bu vanized c aíssa G. C ence on Bu vanized

ilding Path d reinforc arbonat ândido b , M Carla C. ilding Path d reinforc a bonat ândido b , M Carla C.

ology and C cements ed medi ariane R. Araújo b ology and C cements ed medi ariane R. Araújo b

onstructio in carbo a Carvalho b , onstructio in carbo a Carvalho b ,

ns Repair – onated a ns Repair – onated a

CINPAR 2 and non- CINPAR 2 and non-

018 018

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. Gi bson R. M a Paraíba ract resent work a a of different a . The reinforce phase of the tials of hydro urements using r than 13.2. It h sion of the ga nized reinforce ossibility of hi right © 2018 E review under r eira a,b *, T Federal Institute b Feder imed to study t lkalinities. For ments were im concrete pore gen (pHs) rang the linear pol as also been o lvanized reinfo ments can be u gh levels of alk lsevier B.V. A esponsibility o of Education, Sc al University of P he electrochem this purpose, g mersed in satu s. The electroc ing from 12.6 arization resist bserved that, in rcements, wha sed in environ alinity, depend ll rights reserve f the CINPAR ience and Techn araíba Univers ical behaviour alvanized stee rated solutions hemical behav to 13.5. Thes ance technique carbonated en t does not tak ments subjecte ing on the used d. 2018 organizer ology, Av. First o ity City, João Pe of alvanized l bars with 6.3 s of calcium hy viour of the re se reinforcemen . The results s vironment, wi e place for car d to carbonatio materials s d May, 720, Joã ssoa, 58051-085 reinforcements mm of diamete droxide and po inforcement wa ts were monit howed that gal th a pH of abo bon-steel reinf n, but this shou Pablo R. R o Pesso, 58015-4 , Brazil in carbonated r, cut into 100 otassium hydro s evaluated in ored by means vanized bars on ut 8.5, there is orcements. Thi ld be done with . Ferreira 35, Brazil and non-carbo mm segments, oxide, simulatin environments of electroche o ly passivate a a low probabil is demonstrated caution when a,b, nated were g the with emical at pHs ity of that there Copyright © 2018 Elsevier B.V. All rights reserved. Peer-review under responsibility of the CINPAR 2018 organizers Gi Abst The p medi use liquid poten meas lowe corro galva is a p C py Peer Keyw bson R. M a Paraíba ract resent work a a of different a . The reinforce phas of th tials of hydro urements using r than 13.2. It h sion of the ga nized reinforce ossibility of hi right © 2018 E review under r ords: Alkality; c eira a,b *, T Federal Institute b Feder i ed to study t lkalinities. For ments were im co crete pore gen (pHs) rang the linear pol as also been o lvanized reinfo ments can be u gh levels of alk lsevier B.V. A esponsibility o oncrete; corrosi aíssa G. C of Education, Sc al University of P he electrochem this purpose, g mersed in satu s. Th electroc ing from 12.6 arizati n resist bserved that, in rcements, wha sed in environ alinity, depend ll rights reserve f the CINPAR n; galvanized rein ience and Techn araíb , Univers ical behaviour alvanized stee rated solutions hemical behav to 13.5. T es ance technique carbonated en t does not tak ments subjecte ing on the used ed. 2018 organizer nforcement. ology, Av. First o ity City, João Pe of galvanized l bars with 6.3 of calcium hy vi ur of the re se reinforcemen e. The results s vironment, wi ke place for car d to carb natio materials s d May, 720, Joã ssoa, 58051-085 einforc ments mm of diamete droxide and po inf rceme t wa ts were monit howed that gal th a pH of abo bon-steel reinf n, but this shou Pablo R. R o Pesso, 58015-4 , Brazil in carbonated r, cut into 100 tassium hydro as evaluated in ored by means vanized bars on ut 8.5, there is orcements. Thi ld be done with . Ferreira 35, Brazil and non-carbo mm segments, xide, si ulatin n environments of electroche ly passivate a a low probabil s demonstrated h cauti when a,b, nated were g the with mical at pHs ity of that there Abst The p medi used liquid poten meas lowe corro galva is a p Copy Peer

ords: Alkality; c

oncrete; corrosio

n; galvanized rein

forcement.

Keyw

Keywords: High Pressure Turbine Blade; Creep; Finite Element Method; 3D Model; Simulation.

* C E Corresponding aut -mail address: gi orresponding aut E-mail ad ress: gi * C E

B.V. All rights re CINPAR 2018 o B.V. All rights re CINP R 2018 o 98812-0070 ; o.com; gibson.m 98812-0070 ; o.com; gibson.m

eira@ifpb.edu.b r eira@ifpb.edu.b r

2452 Peer-r 2452 Peer-r

3216 Copyright evi w u er resp 3216 Copyright eview under resp

served. rganizers. served. rganizers.

* Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt

Made with FlippingBook Annual report maker