Finite Element Modeling of the Dynamic Response of Plywood

Author:

Charuk Arkadiusz12ORCID,Gawdzińska Katarzyna3ORCID,Dunaj Paweł1ORCID

Affiliation:

1. Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, al. Piastów 19, 70-310 Szczecin, Poland

2. Marine Ship Repair Yard “Gryfia” J.S.C., Brdowska 12 Str., 71-700 Szczecin, Poland

3. Faculty of Marine Engineering, Maritime University of Szczecin, 1-2 Wały Chrobrego St., 70-500 Szczecin, Poland

Abstract

Modeling the dynamic properties of wood and wood-based composites is a challenging task due to naturally growing structure and moisture-dependent material properties. This paper presents the finite element modeling of plywood panels’ dynamic properties. Two panels differing in thickness were analyzed: (i) 18 mm and (ii) 27 mm. The developed models consisted of individual layers of wood, which were discretized using three-dimensional finite elements formulated using an orthotropic material model. The models were subjected to an updating procedure based on experimentally determined frequency response functions. As a result of a model updating relative errors for natural frequencies obtained numerically and experimentally were not exceeding 2.0%, on average 0.7% for 18 mm thick panel and not exceeding 2.6%, on average 1.5% for 27 mm thick panel. To prove the utility of the method and at the same time to validate it, a model of a cabinet was built, which was then subjected to experimental verification. In this case, average relative differences for natural frequencies of 6.6% were obtained.

Funder

European Regional Development Fund

Ministry of Education and Science, Poland–Implementation Doctorate Program

Publisher

MDPI AG

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