PSI - Issue 58

ScienceDirect Structural Integrity Procedia 00 (2023) 000–000 Structural Integrity Procedia 00 (2023) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 58 (2024) 68–72

© 2024 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 ICSID 2023 Organizers Abstract The work is devoted to investigations of the stress distribution/concentration in a corroded specimen loaded via remote tensile loading. Existence of corrosion pits of various size and various mutual distance affects stress distribution in a specimen which can have influence on its lifetime. Thus, numerical simulations via finite element method were performed in order to assess the stress field near corrosion pits in specimens made of high-strength steel. The geometry of the numerical model was suggested based on the dimensions of the real specimens produced for fatigue experiments. The results obtained are discussed and mutual comparison with experimental data is intended in oncoming months. © 2024 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 ICSID 2023 Organizers Keywords: High-strengt steels; finite element analysis; corrosion pits; stress concentration 1. Introduction and motivation Loading and working environment are important factors in assessment of lifetime of steel structures. Various advanced materials are used to ensure the requirements of individual constructions better. Using for instance high strength steels (HSS), see e.g. Misiunaite et al. (2019), Yan et al. (2019), Young and Li (2019), is a modern trend in many industries. The main advantage of these materials is the possibility to reduce the weight of the specific structural elements, i.e. their stiffness-to-weight ratio is of great importance. Thus, the application of HSS enables to Abstract The work is devoted to investigations of the stress distribution/concentration in a corroded specimen loaded via remote tensile loading. Existence of corrosion pits of various size and various mutual distance affects stress distribution in a specimen which can have influence on its lifetime. Thus, numerical simulations via finite element method were performed in order to assess the stress field near corrosion pits in specimens made of high-strength steel. The geometry of the numerical model was suggested based on the dimensions of the real specimens produced for fatigue experiments. The results obtained are discussed and mutual comparison with experimental data is intended in oncoming months. © 2024 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 ICSID 2023 Organizers Keywords: High-strengt steels; finite element analysis; corrosion pits; stress concentration 1. Introduction and motivation Loading and working environment are important factors in assessment of lifetime of steel structures. Various advanced materials are used to ensure the requirements of individual constructions better. Using for instance high strength steels (HSS), see e.g. Misiunaite et al. (2019), Yan et al. (2019), Young and Li (2019), is a modern trend in many industries. The main advantage of these materials is the possibility to reduce the weight of the specific structural elements, i.e. their stiffness-to-weight ratio is of great importance. Thus, the application of HSS enables to 7th International Conference on Structural Integrity and Durability (ICSID 2023) Corrosion vs. fatigue in a high-strength steel specimen investigated via FEM Lucie Malíková a,b * , Anna Benešová a,b , Mohammad Al Khazali a,b , Stanislav Seitl a,b a Czech Academy of Sciences, Institute of Physics of Materials, v. v. i., Žižkova 513/22, 616 00 Brno, Czech Republic b Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veve ř í 331/95, 602 00 Brno, Czech Republic 7th International Conference on Structural Integrity and Durability (ICSID 2023) Corrosion vs. fatigue in a high-strength steel specimen investigated via FEM Lucie Malíková a,b * , Anna Benešová a,b , Mohammad Al Khazali a,b , Stanislav Seitl a,b a Czech Academy of Sciences, Institute of Physics of Materials, v. v. i., Žižkova 513/22, 616 00 Brno, Czech Republic b Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veve ř í 331/95, 602 00 Brno, Czech Republic

* Corresponding author. Tel.: +420541147381. E-mail address: malikova.l@fce.vutbr.cz * Corresponding author. Tel.: +420541147381. E-mail address: malikova.l@fce.vutbr.cz

2452-3216 © 2024 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 ICSID 2023 Organizers 2452-3216 © 2024 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 ICSID 2023 Organizers

2452-3216 © 2024 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 ICSID 2023 Organizers 10.1016/j.prostr.2024.05.012