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Expérimentation et modélisation du comportement des assemblages en bois réalisés par des tourillons en bois densifié sous des charges monotones et cycliques

Abstract : It is a question of working on multi-layered beams (or cross-laminated wood panels assembled mechanically by densified wood dowels) Traditionally, this type of beam, called laminated beam, is obtained by gluing wooden laminates. which ensures a "perfect" connection thus leading to a multi-layer beam (or Panels) whose characteristics can be obtained by homogenization. In this work, it proposed to replace the glue by the densified wood dowels to make the assemblies. The viability of beams (or panels) assembled by densified wood dowels (more ecological) is not yet fully demonstrated and therefore remains exploratory. The analysis of this type of structure (static or dynamic) must consider the fact that the connection between the wood parts is semi-rigid. therefore, it is precisely planned to characterize this type of structure experimentally and on a large scale. The main objective of the proposed thesis is to evaluate the structural response under monotonic and cyclic loads. More particularly, the response under cyclic load is obviously a key parameter for the validation of this type of assembly under seismic load. As part of this study, it is envisaged to use numerical simulation (use of Abaqus) to reduce expensive experimental tests and optimize the chosen design choices.
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  • HAL Id : tel-03264681, version 1

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Imane El-Houjeyri. Expérimentation et modélisation du comportement des assemblages en bois réalisés par des tourillons en bois densifié sous des charges monotones et cycliques. Mécanique des matériaux [physics.class-ph]. Université de Lorraine, 2020. Français. ⟨NNT : 2020LORR0236⟩. ⟨tel-03264681⟩

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