Construction of Wood-Based Lamella for Increased Load on Seating Furniture

The research on population shows that the count of overweight people has been constantly growing. Therefore, designing and modifying utility items, e.g., furniture should be brought into focus. Indeed, furniture function and safety is associated with the weight of a user. Current processes and stand...

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Bibliographic Details
Published in:Forests 2019-06, Vol.10 (6), p.525
Main Authors: Langová, Nadežda, Réh, Roman, Igaz, Rastislav, Krišťák, Ľuboš, Hitka, Miloš, Joščák, Pavol
Format: Article
Language:English
Subjects:
Adhesives
Body weight
Chairs
Composite materials
Construction
Deformation
Deformation analysis
Design
Finite element method
flexible chair
Furniture
glued lamella
Lamella
Lamellae
Load
Manufacturers
Manufacturing
Mechanical properties
Modulus of elasticity
Modulus of rupture
Obesity
Overweight
Plywood
Population
Quality standards
Shear strength
Stability analysis
Thickness
Trends
ultimate state
User requirements
weight of a user
Wood composites
Wood construction
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Summary:The research on population shows that the count of overweight people has been constantly growing. Therefore, designing and modifying utility items, e.g., furniture should be brought into focus. Indeed, furniture function and safety is associated with the weight of a user. Current processes and standards dealing with the design of seating furniture do not meet the requirements of overweight users. The research is aimed at designing flexible chairs consisting of lamellae using the finite element method (FEM). Three types of glued lamellae based on wood with different number of layers and thickness were made and subsequently, their mechanical properties were tested. Values for modulus of elasticity and modulus of rupture were used to determine stress and deformation applying the FEM method for modelling flexible chairs. In this research, the methodology for evaluating the ultimate state of flexible chairs used to analyse deformation and stability was defined. The analysis confirms that several designed constructions meet the requirements of actual standards (valid for the weight of a user up to 110 kg) but fail to meet the requirements for weight gain of a population.
ISSN:1999-4907
1999-4907
DOI:10.3390/f10060525