PSI - Issue 59

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 59 (2024) 583–587

© 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 scope and methodology of experimental studies on pine wood after prolonged use are outlined in this article. Experimental investigations of pine wood samples were conducted under axial compression along the fibers after long-term operation within 25 to 75 years. New experimental data regarding changes in the fundamental strength parameters of wood after extended use were obtained. According to the results of the conducted experiment, it was found that the ultimate strength and modulus of elasticity of pine wood, after 25-75 years of use, at a moisture content of 12-15%, decreased compared to unused samples. It was established that the strength parameters after prolonged use are influenced by the temperature and humidity conditions, the duration of exploitation, the loading regime, and the damage occurring during operation. © 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, ultimate strength, elasticity modulus, long-term exploitation, load. wood, ultimate strength, elasticity modulus, long-term exploitation, load. VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Effect of long-term operation on the strength properties of pine wood Victor Datsiuk a , Sviatoslav Homon b , Svyatoslav Gomon b * , Volodymyr Dovbenko b , Oleksiy Petrenko c , Inna Parfentyeva a , Mykola Romaniuk a a Lutsk National Technical University, Lvivska 75, 43018 Lutsk, Ukraine b National University of Water and Environmental Engineering, Soborna 11, 33000 Rivne, Ukraine c Lviv Polytechnic National University, S. Bandery 12, 79013, Lviv, Ukraine a b c

1. Introduction

* Corresponding author. Tel.: +380679158650. E-mail address: slavagomon@ukr.net

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.2024.04.082