PSI - Issue 72

Sviatoslav Homon et al. / Procedia Structural Integrity 72 (2025) 301–307

306

u c,o,d, exp

20 %

0.01

0.008

20 %

0.006

0.004

0.002

u c,o,d, th

0

0 0.002 0.004 0.006 0.008 0.01

u c,o,d, exp

20 %

0.01

0.008

20 %

0.006

0.004

0.002

u c,o,d, th

0

0 0.002 0.004 0.006 0.008 0.01

Fig. 4. Differences between experimental and theoretical values of critical deformations according to formula (2) for glued hardwood and coniferous wood. 5. Conclusions 1. Formulas have been proposed to determine the relative critical and ultimate deformations of glued wood. 2. Based on experimental findings, comprehensive deformation diagrams of the studied species of glued wood under axial compression along the fibres were created. 3. Key subcritical and critical parameters were identified through both experimental and theoretical approaches, including temporary ultimate strength, as well as relative critical, ultimate, and residual deformations. 4. It was observed that the formula for calculating the relative critical deformations of glued wood correlates well with experimental data. References

Aleksiievets V., Gomon S., Aleksiievets I., Homon S., Ivaniuk A., Zadorozhnikova I., Bandura I., 2024. Influence of thicknesses of outer and