PSI - Issue 42

Available online at www.sciencedirect.com Structural Int grity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ

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Procedia Structural Integrity 42 (2022) 1483–1496

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the 23 European Conference on Fracture – ECF23 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23 Keywords: Steam pipeline; CT-specimen; Finite Element Method. 1. Introduction Application of the finite element method (FEM) is of particular importance in the field of fracture mechanics. It is possible to determine the life time of the structure based on the predefined geometry of the structure, the mechanical characteristics of the applied material, the position, geometry and dimension of the initial crack. This method made a significant contribution to the design of bearing elements of complex geometric shapes. Steel grade 14MoV6 3 is used for manufacturing of boil rs and steam pip lin s designed for steam temperatures up to 560 °C. This paper presents the nume ical imulation of CT-specimen, using the finite element method. The analysis was performed using An ys Workbenc R21, and epresents the initial stage of extensive research i volving the be aviour of 14MoV6 3 steel. Th goal was to simulate the real experimental co ditions, including boundary conditions and loads, which were defined in accordance with relev nt stand rds, and to obtain repre entative re ults. The temperature ependent mechanical properties ne ded for the simulation of plastic behaviour of such specimens under tensile loads were obtained from the experimental data and the literature. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) P er-review under responsibility of 23 Europ an Conference on Fracture - ECF23 Keywords: Steam pipeline; CT-specimen; Finite Element Method. 1. Introduction Application of the finite element method (FEM) is of particular importance in the field of fracture mechanics. It is possible to determine the life time of the structure based on the predefi ed geometry of the structure, the mechanical characteristics of the applied material, the position, geometry and dimension of the initial crack. This method made a significant contribution to the design of bearing elements of complex geometric shapes. 23 European Conference on Fracture - ECF23 Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior Bojana ZEČEVIĆ 1 , Ana MAKSIMOVIĆ 1 , Ljubica MILOVIĆ 2 , Vujadin ALEKSIĆ 3 , Aleksandar GRBOVIĆ 4 , Srđan BULATOVIĆ 3 1 University of Belgrade, Innovation Centre of the Faculty of Technology and Metallurgy , 4 Karnegijeva St, 11120 Belgrade, Serbia 2 University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, Serbia 3 Institute for Testing of Materials-IMS Institute, Belgrade, Serbia 4 University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia 23 European Conference on Fracture - ECF23 Numerical simulation of 14Mov6-3 steel CT-specimen Fracture Behavior Bojana ZEČEVIĆ 1 , Ana MAKSIMOVIĆ 1 , Ljubica MILOVIĆ 2 , Vujadin ALEKSIĆ 3 , Aleksandar GRBOVIĆ 4 , Srđan BULATOVIĆ 3 1 University of Belgrade, Inno ation Centre of the 4 Ka negijeva St, 11120 Belgrade, Serbia 2 University of B lgrad , Faculty of Technology and M tallurgy, Belg ade, Serbia 3 Institute for Testing of Materials-IMS Institute, Belgrad , Serbia 4 University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia Abstract Abstract Steel grade 14MoV6 3 is used for manufacturing of boilers and steam pipelines designed for steam temperatures up to 560 °C. This paper presents the numerical simulation of a CT-specimen, using the finite element method. The analysis was performed using Ansys Workbench R21, and represents the initial stage of extensive research involving the behaviour of 14MoV6 3 steel. The goal was to simulate the real experimental conditions, including boundary conditions and loads, which were defined in accordance with relevant standards, and to obtain representative results. The temperature dependent mechanical properties needed for the simulation of plastic behaviour of such specimens under tensile loads were obtained from the experimental data and the literature.

*Corresponding author. Tel.: +387645523025; fax: +387113370387. E-mail address: baleksic@tmf.bg.ac.rs *Corresponding author. Tel.: +387645523025; fax: +387113370387. E-mail address: baleksic@tmf.bg.ac.rs

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23 2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.189