PSI - Issue 39

Available online at www.sciencedirect.com Procedia Structural Integrity 00 (2021) 000–000 Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2021) 000–000 Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 39 (2022) 726–729

7th International Conference on Crack Paths Hydrogen-assisted fatigue propagation paths in corner cracks emanating from holes in tension-loaded plates 7th International Conference on Crack Paths Hydrogen-assisted fatigue propagation paths in corner cracks emanating from holes in tension-loaded plates

Jesús Toribio*, Beatriz González, Juan-Carlos Matos Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain Jesús Toribio*, Beatriz González, Juan-Carlos Matos Fracture & Structural Integrity Research Group (FSIRG), University of al manca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain

© 2021 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 CP 2021 – Guest Editors © 2021 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 CP 2021 – Guest Editors Abstract Hydrogen-assisted fatigue crack growth (corrosion-fatigue) is studied in corner cracks emanating from holes placed in plates under te sile loading, comparing the results with those obtained in the case of fatigue in air. To this end, numerical modeling has been carried out to evaluate the crack front advance based on the Paris equati n and the stress intensity factor (SIF) obtained by Raju and Newman. There is a preferential crack path , the approach to it being quicker for the case of fatigue in air than for the case of corrosion-fatigue. © 2021 The Authors. Published by ELSEVIER B.V. This is an ope access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors Abstract Hydrogen-assisted fatigue crack growth (corrosion-fatigue) is studied in corner cracks emanating from holes placed in plates under tensile loading, comparing the results with those obtained in the case of fatigue in air. To this end, numerical modeling has been carried out to evaluate the crack front advance based on the Paris equation and the stress intensity factor (SIF) obtained by Raju and Newman. There is a preferential crack path , the approach to it being quicker for the case of fatigue in air than for the case of corrosion-fatigue. Keywords: corner flaws; plates with holes; stress concentrators; Paris law; fatigue crack propagation; aspect ratio; preferential propagation path. Keywords: corner flaws; plates with holes; stress concentrators; Paris law; fatigue crack propagation; aspect ratio; preferential propagation path. 1. Introduction The study of fatigue crack propagation paths is of great interest in the field of fracture mechanics, especially in the case of aggressive environments (corrosion-fatigue) or when hydrogen is present (hydrogen-assisted fatigue). 1. Introduction The study of fatigue crack propagation paths is of great interest in the field of fracture mechanics, especially in the case of aggressive environments (corrosion-fatigue) or when hydrogen is present (hydrogen-assisted fatigue).

* Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es * Correspon ing author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es

2452-3216 © 2021 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 CP 2021 – Guest Editors 2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an ope acces article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of CP 2021 – Guest Editors

2452-3216 © 2021 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 CP 2021 – Guest Editors 10.1016/j.prostr.2022.03.146