Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour

This paper presents numerical models of a 3D printed plastic joint applicable to the connection of wooden structures. The research presented provides a comparison of two alternative solutions for the geometry of the joint and results from several loading schemes and boundary conditions. Included are...

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Main Authors: Petr Lehner, Premysl Parenica, David Juracka, Martin Krejsa
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2025-01-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:https://www.fracturae.com/index.php/fis/article/view/5200/4151
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author Petr Lehner
Premysl Parenica
David Juracka
Martin Krejsa
author_facet Petr Lehner
Premysl Parenica
David Juracka
Martin Krejsa
author_sort Petr Lehner
collection DOAJ
description This paper presents numerical models of a 3D printed plastic joint applicable to the connection of wooden structures. The research presented provides a comparison of two alternative solutions for the geometry of the joint and results from several loading schemes and boundary conditions. Included are analyses evaluating the mechanical behaviour in a simple axial tensile test, a three-point bending test and, finally, a sensitivity analysis of the location susceptible to fatigue damage. The models include a 3D printed polycarbonate joint, wooden elements and steel shear pins. The combined model allows a deeper understanding of the interactions. Finite element method (FEM) software was used to develop the numerical models and suitably defined boundary conditions, and material properties of all parts were adopted. The simulation results show that the 3D joint exhibits a high resistance to tensile loading, while in the case of three-point bending, a higher susceptibility to fracture of the printed joint is observed. The sensitivity fatigue analysis identified critical areas on the 3D printed component that need to be improved before further development. These analyses provide important information for optimizing the design of 3D printed plastic joints intended for wooden structures
format Article
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institution Kabale University
issn 1971-8993
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publishDate 2025-01-01
publisher Gruppo Italiano Frattura
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series Fracture and Structural Integrity
spelling doaj-art-f4d9b967f10a4112ba52f9eb688346b42025-01-03T08:51:16ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932025-01-01197115116310.3221/IGF-ESIS.71.1110.3221/IGF-ESIS.71.11Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviourPetr LehnerPremysl ParenicaDavid JurackaMartin KrejsaThis paper presents numerical models of a 3D printed plastic joint applicable to the connection of wooden structures. The research presented provides a comparison of two alternative solutions for the geometry of the joint and results from several loading schemes and boundary conditions. Included are analyses evaluating the mechanical behaviour in a simple axial tensile test, a three-point bending test and, finally, a sensitivity analysis of the location susceptible to fatigue damage. The models include a 3D printed polycarbonate joint, wooden elements and steel shear pins. The combined model allows a deeper understanding of the interactions. Finite element method (FEM) software was used to develop the numerical models and suitably defined boundary conditions, and material properties of all parts were adopted. The simulation results show that the 3D joint exhibits a high resistance to tensile loading, while in the case of three-point bending, a higher susceptibility to fracture of the printed joint is observed. The sensitivity fatigue analysis identified critical areas on the 3D printed component that need to be improved before further development. These analyses provide important information for optimizing the design of 3D printed plastic joints intended for wooden structureshttps://www.fracturae.com/index.php/fis/article/view/5200/41513d printpolycarbonatewoodnumerical modelfatigue
spellingShingle Petr Lehner
Premysl Parenica
David Juracka
Martin Krejsa
Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
Fracture and Structural Integrity
3d print
polycarbonate
wood
numerical model
fatigue
title Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
title_full Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
title_fullStr Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
title_full_unstemmed Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
title_short Numerical analysis of 3D printed joint of wooden structures regarding mechanical and fatigue behaviour
title_sort numerical analysis of 3d printed joint of wooden structures regarding mechanical and fatigue behaviour
topic 3d print
polycarbonate
wood
numerical model
fatigue
url https://www.fracturae.com/index.php/fis/article/view/5200/4151
work_keys_str_mv AT petrlehner numericalanalysisof3dprintedjointofwoodenstructuresregardingmechanicalandfatiguebehaviour
AT premyslparenica numericalanalysisof3dprintedjointofwoodenstructuresregardingmechanicalandfatiguebehaviour
AT davidjuracka numericalanalysisof3dprintedjointofwoodenstructuresregardingmechanicalandfatiguebehaviour
AT martinkrejsa numericalanalysisof3dprintedjointofwoodenstructuresregardingmechanicalandfatiguebehaviour