Elastic properties of cellular wood panels with hexagonal and auxetic cores

Smardzewski, Jerzy

doi:10.1515/hf-2012-0055

Cited by 28 publications

(25 citation statements)

References 14 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Within one wood species, a density increase usually causes an MOE increment (Kollmann and Côté 1984;Gibson and Ashby 1997;Bucur 2005), while in the case of wood-based materials, MOE and MOR are dependent, primarily, on the structure and mechanical properties of the panel surface layers and its core (Smardzewski 2013;Wilczyński et al 2004; Barboutis and Vassiliou 2005;Wilczyński and Kociszewski 2007). The highest MOE L = 9170 N mm -2 was recorded for the T16 panel of 459 kg m -3 density, while the highest density of 848 kg m -3 was recorded for the T02 panel for which MOE L = 5217 N mm -2 .…”

Section: Physic-mechanical Properties Of Wood-based Materialsmentioning

confidence: 99%

Sound absorption of wood-based materials

et al. 2015

Self Cite

View full text Add to dashboard Cite

From modern buildings to public spaces are made of concrete, steel, and glass. These materials increase propagation of sound and the reverberation time. Therefore, furniture should be good sound absorbers in such places. The objective of this study was to ascertain acoustic properties of wood-based materials by determining normal acoustic impedance on the surface and sound absorption coefficients. Experiments were carried out on 17 types of wood-based materials commonly employed in furniture design and manufacture. Investigations were conducted based on the transferfunction method. It was demonstrated that for frequencies between 125 and 500 Hz, the highest capability of sound absorption was determined of low surface layer density and high porosity. Honeycomb panels with paper core absorbed better sounds in the range between 1 and 2 kHz. Panels of considerable external surface irregularities were characterized by the most favorable acoustic properties for the frequency of 4 kHz.

show abstract

Section: Physic-mechanical Properties Of Wood-based Materialsmentioning

confidence: 99%

Sound absorption of wood-based materials

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Petutschnigg and Ebner (2007) investigated material/fastener relationships in joints. Finally, the mechanical properties of the frameless panels have been modeled via a finite element method (Smardzewski 2013).…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Knock-down Joints in Honeycomb Panels

Koreny

Šimek

Eckelman³

et al. 2013

BioResources

View full text Add to dashboard Cite

This study focuses on the use of demountable furniture joints in combination with 38-mm-thick honeycomb panels. These fittings were incorporated into L-shaped corner joints and then tested to determine their bending moment capacity. Overall, seven combinations of demountable fittings were tested. These groups of connectors consisted of solution non-glued, partly-glued connectors, and fully-glued connectors. All of the connectors were positioned in the test samples as they are commonly located in furniture construction. The highest capacities were obtained with glued connectors, followed by partly glued and then non-glued connectors. The difference in capacity between the inside and outside positions was insignificant for the non-glued and fullyglued connectors. A large difference between connectors in different positions was found for the partly glued connectors and for the second type of unglued connectors. The modes of failure were analyzed for each connector, and the possibilities for use in construction are described.

show abstract

“…The type of biomaterial facing significantly affects the ability to absorb and dissipate energy during bending of multilayered beams with an auxetic core. A negative Poisson's ratio characterized auxetic materials (structures) [8,9,[12][13][14][15][16]18]. They improve the mechanical properties of panels, beams, etc., especially shear resistance, bending resistance, impact resistance, and increase of the ability to absorb energy.…”

Section: Introductionmentioning

confidence: 99%

Bending Behavior of Lightweight Wood-Based Sandwich Beams with Auxetic Cellular Core

Peliński

Smardzewski

2020

Polymers

Self Cite

View full text Add to dashboard Cite

The work concerns a three-point bending test of beams made of plywood, high density fibre boards, cardboard, and wood-epoxy mass. The goal of the investigation was to determine the effect of thickness and type of wood-based facings on stiffness, strength, ability to absorb, and dissipate the energy of sandwich beams with an auxetic core. The cognitive goal of the work was to demonstrate the possibility of using recycled materials for facings and cores instead of popular wood composites. Experimental studies and numerical calculations were performed on correctly calibrated models. Experimental studies have shown that the beams with HDF facings (E = 1528 MPa, MOR = 12.61 MPa) and plywood facings (E = 1248–1395 MPa, MOR = 8.34–10.40 MPa) have the most favourable mechanical properties. Beams with plywood facings also have a good ability to absorb energy (1.380–1.746 J), but, in this respect, the beams manufactured of HDF (2.223 J) exhibited better capacity. The use of an auxetic core and facings of plywood and cardboard significantly reduces the amount of dissipated energy (0.0093 J, 0.0067 J). Therefore, this type of structures can be used for modeling beams carrying high deflections.

show abstract

Elastic properties of cellular wood panels with hexagonal and auxetic cores

Cited by 28 publications

References 14 publications

Sound absorption of wood-based materials

Sound absorption of wood-based materials

Mechanical Properties of Knock-down Joints in Honeycomb Panels

Bending Behavior of Lightweight Wood-Based Sandwich Beams with Auxetic Cellular Core

Contact Info

Product

Resources

About