PSI - Issue 5

ScienceDirect Available online at www.sciencedirect.com Av ilable o line at ww.sciencedire t.com cienceDirect Structural Integrity Procedia 00 (2016) 000 – 000 Procedia Struc ural Integrity 5 (2017) 1363–1369 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2017) 000 – 000 il l li t . i ir t. tructural Integrity rocedia 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. 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal Longitudinal bonded joints of timber beams using plywood and LVL plates Antonin Lokaj a, *, Kristyna Vavrusova a a VŠB – Technical University of Ostrava, Faculty of Civil Engineering, Depatment of Building Structures, Ludvika Podeste 1 875, Ostrava Poruba, 708 33, Czech Republic The content of this article is to analyze destructive testing results of longitudinal solid wood joints of structural size beams with external glued wood-based panels (plywood, laminated veneer lumber – LVL) stressed in bending. The aim of this article is to compare the carrying capacity and the real joint behaviour under load with values obtained using numerical modelling and calculation according to valid standards. © 2017 The Authors. Publishe by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. Keywords: timber; joint; carrying capacity; plywood; LVL 1. Introduction Th growth of timber use in the bu lding industry brings new trends, not only to the field of innovative wood-based materials, but also to the joining of the timber structure elements. Besides already well normatively described and laboratory tested j ints with steel glued-in elements, most commonly rods or plates, glued timber-timber joints, used in furniture or the building industry are created as well. In the building industry it is possible to use glued joints especially for the reconstruction of timber structure elements – for its strengthening or for the replacement of damaged tr t r l I t rit , I I , - t r , l, ir , rt l t i j a, , i t a a Š – echnical niversity of strava, aculty of ivil ngineering, epat ent of uilding Structures, udvika odeste 1 875, strava oruba, 708 33, zech epublic str ct e c te t f t is article is t a al ze estr cti e testi res lts f l it i al s li j i ts f str ct ral size ea s it e ter al l e - ase a els ( l , la i ate e eer l er ) stresse i e i . e ai f t is article is t c are t e carr i ca acit a t e real j i t e a i r er l a it al es tai e si erical elli a calc lati acc r i t ali sta ar s. e t rs. lis e lse ier . . Peer-review under res onsi ilit f t e cie tific ittee f I I . ey ords: ti b r; jo nt; carrying capacity; ply ood; 1. Introduction r t f ti r s i t il i i str ri s tr s, t l t t fi l f i ti - s t ri ls, t ls t t j i i f t ti r str t r l ts. si s lr ll r ti l s ri l r t r t st j i ts it st l -i l ts, st l r s r l t s, l ti r-ti r j i ts, s i f r it r r t il i i str r r t s ll. I t il i i str it is ssi l t s l j i ts s i ll f r t r str ti f ti r str t r l ts f r its str t i r f r t r l t f © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017 © 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. Abstract I t r ti l f r

2452-3216 © 2016 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of PCF 2016. 2452-3216  2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017 10.1016/j.prostr.2017.07.199 * Corresponding author. Tel.: +351 218419991. E-mail address: amd@tecnico.ulisboa.pt 2452-3216 © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the Scientific Committee of ICSI 2017. 2452-3216 2017 he uthors. ublished by lsevier . . eer-re ie er res si ilit f t e cie tific ittee f I I . * Corresponding author. Tel.: +420 597 321 302; fax: +420 597 321 377. E-mail address: antonin.lokaj@vsb.cz * orresponding author. el.: 420 597 321 302; fax: 420 597 321 377. - ail address: antonin.lokaj vsb.cz