20.500.12556/RUL-169373 Bending quasi-static and fatigue behaviour of Norway spruce wood using experimental approach and FEM analysis This study presents the experimental and computational investigation of Norway spruce wood's quasi-static and fatigue behaviour under three-point bending loading conditions, temperature of 20 °C and humidity of 65 %. The quasi-static experimental tests were performed for radial and tangential wood fibre orientation, while the fatigue tests were performed only for tangential orientation and evaluated using a conditional two-parametric Weibull's probability density function. A computational model was developed and calibrated in the computational simulation by comparing the mechanical responses in both radial and tangential wood fibre orientation. Furthermore, the computational model was enhanced by incorporating the S – N curve derived from prior experimental fatigue tests. From the results of quasi-static tests, it was obtained that the tangential wood fibre orientations withstand higher strength (for approximately 7 %) than the radial wood fibre orientation. When determining the constitutive material parameters, the inverse optimisation procedure with a Genetic Algorithm showed a deviation between the numerical and experimental responses of 2.06 % for the radial fibre orientation and 2.33 % for the tangential fibre orientation. Based on this finding, the proposed computational model was calibrated and can be used further for the numerical simulations of the bending quasi-static and fatigue behaviour of structural elements made of spruce wood. spruce wood fatigue behaviour experimental testing inverse optimisation numerical simulations smrekov les utrujanje eksperimentalno testiranje inverzna optimizacija numerične simulacije true false true Angleški jezik Slovenski jezik Neznano 2025-05-26 11:05:27 2025-05-26 11:05:32 2025-05-27 04:01:10 0000-00-00 00:00:00 2025 0 0 Str. 1-16 iss. jul., [art. no.] e04734 Vol. 22 2025 0000-00-00 Zaloznikova NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*8 2214-5095 10.1016/j.cscm.2025.e04734 236434691 RAZ_Necemer_Branko_2025.pdf RAZ_Necemer_Branko_2025.pdf 1 76E067B6A4F170AE5419932AAF416E6A 387b79a738affb068b9e2fa67b2fbbbfeb3af21685a63a121e67cefc630917ff df0cbbf9-3a0f-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210679 https://www.sciencedirect.com/science/article/pii/S2214509525005327?via%3Dihub 1 49151c1b-3a0f-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210678 Biotehniška fakulteta 0 0 0