A high-order finite element model for vibration analysis of cross-laminated timber assemblies

  • The vibration behavior of cross-laminated timber components in the low-frequency range can be predicted with high accuracy by the finite element method. However, the modeling of assembled cross-laminated timber components has been studied only scarcely. The three-dimensional p-version of the finite element method, which is characterized by hierarchic high-order shape functions, is well suited to consider coupling and support conditions. Furthermore, a small number of degrees of freedom can be obtained in case of thin-walled structures using p-elements with high aspect ratios and anisotropic ansatz spaces. In this article, a model for cross-laminated timber assemblies made of volumetric high-order finite elements is presented. Two representative types of connections are investigated, one with an elastomer between the cross-laminated timber components and the other without. The model is validated, and suitable ranges for the stiffness parameters of the finite elements which represent the junctions are identified.

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Author:Alexander Paolini, Stefan Kollmannsberger, Christoph Winter, Martin Buchschmid, Gerhard Müller, Andreas Rabold, Simon Mecking, Ulrich Schanda, Ernst Rank
Parent Title (English):Building Acoustics
Document Type:Article (peer reviewed)
Publication Year:2017
Tag:cross-laminated timber; finite element method
First Page:135
Last Page:158
Peer reviewed:Ja
faculties / departments:Fakultät für Angewandte Natur- und Geisteswissenschaften
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 60 Technik / 600 Technik, Technologie