A Fracture mechanical and anisotropic fem model of the "Reconwood Joint" and experimental verification

Jesper Kierkegaard Hansen, Mads Friborg Nielsen, Seren Gustenhoff Hansen*, Anja Kunic, Roberto Naboni

*Kontaktforfatter

Publikation: Kapitel i bog/rapport/konference-proceedingKonferencebidrag i proceedingsForskningpeer review

Abstract

Contemporary capabilities in timber fabrication have encouraged the advancement of robotic manufacturing and assembly. In this paper, the ReconWoodjoint, a new type of reversible joint conceived for robotic timber assembly is investigated. Thejoint use CNC milled shear-keys to ensure enhanced shear capacity and more ductile behaviour over the conventional dowel-type connection. More specifically, we here establish a method for the modelling and structural analysis of such joint where the complex nature of timber is tackled by using material laws which are readily available in most commercial FE software. The paper presents a hybrid material model using the Hill Criterion in combination with fracture mechanics (CZM) to appropriately describe these behaviours. The material model is implemented in a three-dimensional FEM model to simulate the joint's mechanical behaviour, and a test series is presented to validate the modelling approach. The results show that the model is able to predict the mechanical response with great precision, both in relation to the stiffness, ultimate strength, and failure mode.

OriginalsprogEngelsk
Titel13th World Conference on Timber Engineering, WCTE 2023
RedaktørerAnders Q. Nyrud, Kjell Arne Malo, Kristine Nore, Knut Werner Lindeberg Alsen, Saule Tulebekova, Efthymia Ratsou Staehr, Gabrielle Bergh, Wendy Wuyts
ForlagWorld Conference on Timber Engineering (WCTE)
Publikationsdato2023
Sider1252-1260
ISBN (Elektronisk)9781713873297
DOI
StatusUdgivet - 2023
Begivenhed13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023 - Oslo, Norge
Varighed: 19. jun. 202322. jun. 2023

Konference

Konference13th World Conference on Timber Engineering: Timber for a Livable Future, WCTE 2023
Land/OmrådeNorge
ByOslo
Periode19/06/202322/06/2023
SponsorAanesland Treindustri, et al., Moelven, Paper Province, Region Varmland, Sweco

Bibliografisk note

Publisher Copyright:
© (2023) WORLD CONFERENCE ON TIMBER ENGINEERING 2023 (WCTE 2023) All rights reserved.

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