Changing the position of the neutral line of beams made of glued wood in conditions of oblique bending.

Autor: Sobczak-Piąstka, Justyna, Pavluk, Andrii, Gomon, Svyatoslav S., Gomon, Petro, Homon, Sviatoslav, Lynnyk, Iryna
Předmět:
Zdroj: AIP Conference Proceedings; 9/4/2023, Vol. 2928 Issue 1, p1-7, 7p
Abstrakt: The practice of designing building structures in particular wooden shows that bending is one of the most common types of stress-strain state. The straight bend of the beams of glued wood is well-studied and represented today by scientific investigations. The purpose of this work is to study the motion of a neutral line of beams made of glued wood for the effects of one-time loads under oblique bend. In this paper experimental studies of glued wooden beams for oblique bend at different angles of inclination are carried out. The results of experimental and theoretical studies of glued beams, in particular the position of a neutral line in the conditions of oblique bend under the action of one-time loads are presented. In order to compare the experimental values of the position of the neutral line with the theoretical in the conditions of the oblique bend, the calculation of the beam was performed using the finite element method. The graphs of changing the position of the neutral line at different levels of load of glued beams are presented. The neutral line of glued beams during the increase in load changes its position in the direction of increasing the area of the compressed section of the section. Theoretical calculations by the formulas of the resistance of the materials show that the neutral line does not depend on the value of the external load and occupies a stable position according to a certain angle of inclination whereas in the real conditions, due to the elastic and plastic properties of the wood and the increase of the load, the neutral line for the oblique flexion changes its position. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index