PSI - Issue 72

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ScienceDirect

Procedia Structural Integrity 72 (2025) 301–307

12th Annual Conference of Society for Structural Integrity and Life (DIVK12) Determination of main strength and deformation parameters of complete diagrams of glue-laminated wood deformation Sviatoslav Homon a , Petro Gomon a, *, Syatoslav Gomon a , Andrii Pavluk a , Bohdan Karavan a , Oleksiy Petrenko b , Olha Homon c , Oleksandr Chapiuk c a National University of Water and Environmental Engineering, Soborna 11, 33000 Rivne, Ukraine Abstract The formulas for calculating the relative critical and ultimate deformations of glued wood have been proposed. Comprehensive deformation diagrams for the examined species of glued wood under axial compression along the fibres were developed. Both experimental and theoretical approaches were used to determine the main subcritical and critical parameters, including temporary ultimate strength, relative critical deformations, as well as ultimate and residual deformations. It has been established that the formula for calculating the relative critical deformation of glued wood closely aligns with the experimental values. © 2026 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 Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia b Lviv Polytechnic National University, S. Bandery 12, 79013, Lviv, Ukraine c Lutsk National Technical University, Lvivska 75, 43018 Lutsk, Ukraine

Keywords: glued wood; temporary ultimate strength; critical deformations; modulus of elasticity

1. Introduction Materials Wood has long been regarded as one of the most promising renewable materials for various industries and will continue to be so for years to come (Galicki and Czech (2005); Gomon et al. (2023); Nsouami et al. (2022); Pavluketal. (2023); Green and Kretschmann (1992)). Wood-based materials exhibit excellent physical and mechanical properties (Landis et al. (2002); Aleksiievets et al. (2024); Betts et al. (2010); Datsiuk et al. (2024); Homon

* Corresponding author. Tel.: +38-067-196-77-86. E-mail address: p.s.homon@nuwm.edu.ua

2452-3216 © 2026 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 Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia 10.1016/j.prostr.2025.08.107