PSI - Issue 42

Available online at www.sciencedirect.com Available o line at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000

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Procedia Structural Integrity 42 (2022) 1744–1751 23 European Conference on Fracture - ECF23 Computational investigation of Várzeas bridge steel under monotonic tensile via crystal plasticity finite element method António Mourão a *, J.A.F.O. Correia a , Jingyu Sun b , Guian Qian b , Túlio Bittencourt c , Rui Calçada a a Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal b State Key Laboratory of Nonlinear Mechanics, Chinese Academy of Sciences, 100190 Beijing, China Abstract It is possible to trace back the evolution of current structural steels to the early 18th century with the discovery of iron smelting with coke by Darby resulting in further improvements into the latter half of the 18th century when workable wrought iron was developed and rolling iron into standard shapes was made available, resulting in a wide range of structural applications such as railway bridges. Even though wrought iron as a primary construction material continued predominantly until the end of the 19 th century, a gradual evolution of steel was made with the addition of chemical elements during the manufacturing process, whose refinement led to the creation of the standards such as the EN10025 for modern structural steels. Despite the controlled conditions involved in the manufacturing in ferrite-pearlite steels, or modern structural steels as they are commonly referred to, a certain level of randomness is to be expected, hence, resultant scatter in the final material mechanical, chemical and morphologic properties can be found. In the present work, a computational framework is presented with aims to include the effect of grain size distribution and morphology in the numerical crystal plasticity finite element (CPFE) by means of polycrystal modelling with aims to describe the material parameters and a comparison between experimental and numerical stress-strain curve for the transition mild structural steel from the Várzeas railway bridge is presented. © 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 23 European Conference on Fracture - ECF23 Computational investigation of Várzeas bridge steel under monotonic tensile via crystal plasticity finite element method António Mourão a *, J.A.F.O. Correia a , Jingyu Sun b , Guian Qian b , Túlio Bittencourt c , Rui Calçada a a Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal b State Key Laboratory of Nonlinear Mechanics, Chinese Academy of Sciences, 100190 Beijing, China c Norwegian University of Science and Technology, 7491 Trondheim, Norway d Polytechnic School, University of São Paulo, 05508-010 São Paulo, Brazil Abstract It is possible to trace back the evolution of current structural steels to the early 18th century with the discovery of iron smelting with coke by Darby resulting in further improvements into the latter half of the 18th century when workable wrought iron was developed and rolling iron into standard shapes was made available, resulting in a wide range of structural applications such as railway bridges. Even though wrought iron as a primary construction material continued predominantly until the end of the 19 th century, a gradual evolution of steel w s made with th ad ition of chemical el ments during the manufacturing process, whose refinement led o the cr ation of the standards such as the EN10025 for modern structural eels. Despite the controlled conditions nvolv d in th manufac uring i ferrite-pea lite eels, or mode n structural steels a they are commonly r ferred to, a cert in level of randomness is to be expected, hence, resultant scatter in the final material mechanical, chemical and morphologic properties can be found. In the present work, a computational fram work is presented with aims to include the effect of grain size distribution and morphology in the numerical crystal plasticity finite element (CPFE) by means of polycrystal modelling with aims to describe the material parameters and a comparison between experimental and numerical stress-strain curve for the transition mild structural steel from the Várzeas railway bridge is presented. © 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 © 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 c Norwegian University of Science and Technology, 7491 Trondheim, Norway d Polytechnic School, University of São Paulo, 05508-010 São Paulo, Brazil

* Corresponding author. Tel.: +351 919 148 916. E-mail address: amourao@fe.up.pt

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 * Correspondi g author. Tel.: +351 919 148 916. E-mail address: amourao@fe.up.pt 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.2022.12.221