000267583 001__ 267583
000267583 005__ 20190626160005.0
000267583 037__ $$aPOST_TALK
000267583 245__ $$a3D Finite Element Model for Shear Stiffness of Wood-Wood Connections for Engineered Timber Panels
000267583 260__ $$c2019-06-19
000267583 269__ $$a2019-06-19
000267583 336__ $$aTalks
000267583 500__ $$a[1] C. Sandhaas, J.-W. van de Kuilen, H. J. Blass: A 3D constitutive wood model using the concepts of continuum damage mechanics. In: J. Eberhardsteiner et al. (eds.), Proceedings of the European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), Vienna, Austria, September 10-14, 2012. [2] S. Roche, G. Mattoni, Y. Weinand: Rotational Stiffness at Ridges of Timber Folded-plate Structures. International Journal of Space Structures, 30 (2) (2015), 153-167. [3] M. Dedijer, S. Roche, Y. Weinand: Shear Resistance and Failure Modes of Edgewise Multiple Tab-and-Slot Joint (MTSJ) Connection with Dovetail Design for Thin LVL Spruce Plywood Kerto-Q Panels, in: J. Eberhardsteiner, W. Winter, A. Fadai, M. Pöll (eds.), Proceedings of the World Conference on Timber Engineering (WCTE 2016), Vienna, Austria, August 22-25, 2016, 1516-1523.
000267583 513__ $$aTalks
000267583 520__ $$aWith the development of automated design and fabrication tools, researchers have shown a growing interest for traditional timber joining techniques. Innovative wood-wood connections, referred to as integral mechanical attachments, have been developed and successfully applied to full-scale building structures. However, it has been shown that these connections highly influence the mechanical behavior of structures. The mechanical behavior of the connections themselves therefore needs to be investigated. Numerical modelling is largely used for complex structural analysis problems when analytical solutions are either cumbersome or non-existent. Furthermore, it has the potential to replace expensive and time-consuming experimental tests, for which a limited number of parameter combinations can be tested. For the numerical modelling of timber connections in particular, various studies have been carried out because of the difficulty to achieve analytical models. However, numerical modelling of timber remains arduous due to the anisotropy and inhomogeneity of timber, with largely different mechanical properties parallel and perpendicular-tograin. In this paper, a 3D finite element model predicting the shear stiffness of wood-wood connections is presented. It is based on models developed by Sandhaas for timber joints [1] and Roche et al. for the study of the rotational stiffness of multiple tab-and-slot joints [2]. In this paper, instead of modelling each layer of engineered timber panels with its orientation (longitudinal layers at 0° and crosswise layers at 90°), a single material with the thickness of the timber panel was used, allowing to extend the model for a larger range of engineered timber panels. The model was compared to experimental tests performed on a shear testing setup. Promising results were obtained when comparing experimental tests to the numerical model. However, the model showed limitations for some configurations of joints.
000267583 6531_ $$atimber construction
000267583 6531_ $$adigital fabrication
000267583 6531_ $$awood-wood connections
000267583 6531_ $$a3D finite element modelling
000267583 6531_ $$astructural analysis
000267583 700__ $$g268179$$aNguyen, Anh Chi$$0249876
000267583 700__ $$g270241$$aGamerro, Julien$$0250212
000267583 700__ $$aBocquet, Jean-François
000267583 700__ $$g156151$$aWeinand, Yves$$0243417
000267583 7112_ $$aInternational Conference on Computational Methods in Wood Mechanics – from Material Properties to Timber Structures. ECCOMAS Thematic Conference.$$cVäxjö, Sweden$$dJune 17-19, 2019
000267583 8560_ $$fanhchi.nguyen@epfl.ch
000267583 8564_ $$uhttps://infoscience.epfl.ch/record/267583/files/Conference%20Abstract.pdf$$s394605
000267583 909C0 $$zPasquier, Simon$$xU10236$$pIBOIS$$myves.weinand@epfl.ch$$0252195
000267583 909CO $$ooai:infoscience.epfl.ch:267583$$pENAC$$ppresentation
000267583 960__ $$aanhchi.nguyen@epfl.ch
000267583 961__ $$afantin.reichler@epfl.ch
000267583 973__ $$aEPFL$$sPUBLISHED
000267583 980__ $$aPOST_TALK
000267583 981__ $$aoverwrite