PSI - Issue 59

Available online at www.sciencedirect.com 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

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ScienceDirect

Procedia Structural Integrity 59 (2024) 566–574

© 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 The method of calculating wooden obliquely bent beams using the deformation model has been developed. This technique considers the distribution of stresses in the compressed and stretched zones of the calculated section of the beam, including the formation of folds in the compressed zone of pure bending. It was established that the current norms for calculating wooden structures provide a significant margin of strength compared with the calculation based on the deformation model: for the angle of inclination 10 0 - by 2.49 times, for the angle of inclination 25 0 - by 2.15 times. the maximum bending moment that the beam can absorb, determined by the deformation model at the angle of inclination 10 0 , is M=18.72 kNm, for the angle of inclination 25 0 – M=17.1 kNm, which differs by 8.2% and 3.3% from the experimental data for similar beams at the corresponding angles of inclination. An example of calculating a wooden glulam beam under oblique bending according to the newly developed method is given. © 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: wood, stress-strain state, beam, strength, caring capacity, strain, deformation model. VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Peculiarities of calculation of wooden beams for oblique bending using the deformation model Andrii Pavluk a* , Svyatoslav Gomon a , Mykola Khoruzhyi a , Sviatoslav Homon a , Oleg Dejneka a , Mariia Smal b , Oksana Dziubynska b a National University of Water and Environmental Engineering, Soborna 11, 33000 Rivne, Ukraine b Lutsk National Technical University, Lvivska 75, 43018 Lutsk, Ukraine Abstract The method of calculating wooden obliquely bent beams using the deformation model has been developed. This technique considers the distribution of stresses in the compressed and stretched zones of the calculated section of the beam, including the formation of folds in the compressed zone of pure bending. It was established that the current norms for calculating wooden structures provide a significant margin of strength compared with the calculation based on the deformation model: for the angle of inclination 10 0 - by 2.49 times, for the angle of inclination 25 0 - by 2.15 times. the maximum bending moment that the beam can absorb, determined by the deformation model at the angle of inclination 10 0 , is M=18.72 kNm, for the angle of inclination 25 0 – M=17.1 kNm, which differs by 8.2% and 3.3% from the experimental data for similar beams at the corresponding angles of inclination. An example of calculating a wooden glulam beam under oblique bending according to the newly developed method is given. © 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: wood, stress-strain state, beam, strength, caring capacity, strain, deformation model. VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Peculiarities of calculation of wooden beams for oblique bending using the deformation model Andrii Pavluk a* , Svyatoslav Gomon a , Mykola Khoruzhyi a , Sviatoslav Homon a , Oleg Dejneka a , Mariia Smal b , Oksana Dziubynska b a National University of Water and Environmental Engineering, Soborna 11, 33000 Rivne, Ukraine b Lutsk National Technical University, Lvivska 75, 43018 Lutsk, Ukraine

1. Introduction 1. Introduction

* Corresponding author. Tel.: +380964496168. E-mail address: a.p.pavliuk@nuwm.edu.ua * Corresponding author. Tel.: +380964496168. E-mail address: a.p.pavliuk@nuwm.edu.ua

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.2024.04.080