PSI - Issue 59

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Procedia Structural Integrity 59 (2024) 322–329

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

© 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 DMDP 2023 Organizers Abstract A comparative analysis of the methods to determine the stress intensity factors for cracks propagating in the flange of the I-beam for the case of pure bending was carried out. Applying the engineering method, a mathematical model was created and dependence was derived for the stress intensity factors calculation using the change in inertia moment of the defective profile. Finite element modeling of edge cracks in the I-beam was carried out. This problem was solved using the ANSYS software package. A good convergence of the results with the analytical method is observed. © 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 DMDP 2023 Organizers Keywords: I-beam; bending moment; edge crack; stress intensity factor; finite element method 1. Introduction An important field of strength calculations is the prediction of the durability of the machine elements with fatigue cracks, from the standpoint of fracture mechanics (Anderson (2017)). These methods find practical application in mechanical engineering in relation to structural elements that perceive cyclic loadings and the stage of operation of which after the formation of a crack is essential to determine the service life of the machine. Experience of operation of welded load-bearing structures of mobile machines (including agricultural) shows that welding defects are places of fatigue cracks initiation (Makhnenko (2006), (Knysh and Solovei (2017)), and the VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Investigation of the Stress Intensity Factor for the Edge Crack in I-beam Under Bending Moment Mykola Pidgurskyi a , Mykola Stashkiv a , Roman Rohatynskyi a , Ivan Pidgurskyi a, *, Viktor Senchyshyn a , Andriy Mushak b a Ternopil Ivan Puluj National Technical University, 56 Ruska St., Ternopil 46001, Ukraine b West Ukrainian National University, 11 Lvivska St., Ternopil 46001, Ukraine Abstract A comparative analysis of the methods to determine the stress intensity factors for cracks propagating in the flange of the I-beam for the case of pure bending was carried out. Applying the engineering method, a mathematical model was created and dependence was derived for the stress intensity factors calculation using the change in inertia moment of the defective profile. Finite element modeling of edge cracks in the I-beam was carried out. This problem was solved using the ANSYS software package. A good convergence of the results with the analytical method is observed. © 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 DMDP 2023 Organizers Keywords: I-beam; bending moment; edge crack; stress intensity factor; finite element method 1. Introduction An important field of strength calculations is the prediction of the durability of the machine elements with fatigue cracks, from the standpoint of fracture mechanics (Anderson (2017)). These methods find practical application in mechanical engineering in relation to structural elements that perceive cyclic loadings and the stage of operation of which after the formation of a crack is essential to determine the service life of the machine. Experience of operation of welded load-bearing structures of mobile machines (including agricultural) shows that welding defects are places of fatigue cracks initiation (Makhnenko (2006), (Knysh and Solovei (2017)), and the VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Investigation of the Stress Intensity Factor for the Edge Crack in I-beam Under Bending Moment Mykola Pidgurskyi a , Mykola Stashkiv a , Roman Rohatynskyi a , Ivan Pidgurskyi a, *, Viktor Senchyshyn a , Andriy Mushak b a Ternopil Ivan Puluj National Technical University, 56 Ruska St., Ternopil 46001, Ukraine b West Ukrainian National University, 11 Lvivska St., Ternopil 46001, Ukraine

* Corresponding author. Tel.: +38(066) 837 27 31. E-mail address: ipidhurskyy@gmail.com * Corresponding author. Tel.: +38(066) 837 27 31. E-mail address: ipidhurskyy@gmail.com

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 DMDP 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 DMDP 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 DMDP 2023 Organizers 10.1016/j.prostr.2024.04.046