Bending Creep Performances of Hybrid Laminated Woods Composed of Wood-Wood Based Boards

Park, Han-Min; Kang, Dong Heon; Choi, Yoon-Eun; Ahn, Sang-Yeol; Ryu, Hyun-Su; Byeon, Hee-Seop

doi:10.5658/wood.2010.38.1.1

Cited by 6 publications

(4 citation statements)

References 1 publication

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“…And these value were slightly lower than that of glulam under constant humidity condition and were considerably lower than that under humidity change. Also, these values were in a similar range as those of wood-based boards such as plywood, particle board and wood-wood based board laminated materials (Nakai, 1878;Arima, 1981;Park et al, 2010). The A values of parallel-and cross-laminated woods proportionally increased with increasing creep compliances.…”

Section: Bending Creep Curves Of Laminated Woodssupporting

confidence: 54%

Bending Creep Property of Cross-Laminated Woods Made With Six Domestic Species

Byeon¹,

김태호²,

Yang³

et al. 2017

Journal of the Korean Wood Science and Technology

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In this study, with the view to using effectively small and medium diameter Korean domestic woods as structural materials, cross-laminated woods were manufactured by using six species of Korean domestic softwoods and hardwoods, and bending creep properties were investigated for each species. The creep curves showed the shape of the exponential function plot, and the creep curves after 1 hour were able to estimate by fitting it to the power law. The initial and creep compliances of cross-laminated woods showed the higher values in wood species with a low density than in that with a high density. And by cross-laminating, the initial and creep compliances perpendicular to the grain considerably decreased, the extent of the decrease was found to be greater in creep deformation than in initial deformation. The creep anisotropies of cross-laminated woods were considerably decreased by cross-laminating. The relative creep of C ⊥ type composed of perpendicular-direction lamina in the faces decreased 0.59 -0.64 times compared to that of P ⊥ type composed of perpendicular-direction laminae in all layers, and that for C ∥ type composed of parallel-direction laminae in the faces increased 1.5 -1.6 times compared to that of P ∥ type composed of parallel-direction laminae in all layers.

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Section: Bending Creep Curves Of Laminated Woodssupporting

confidence: 54%

Bending Creep Property of Cross-Laminated Woods Made With Six Domestic Species

Byeon¹,

김태호²,

Yang³

et al. 2017

Journal of the Korean Wood Science and Technology

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“…In addition, for the cross-laminated wood panels cross-laminating tropical woods and tulip, the N values were almost similar to those of wood-based boards such as plywood and particle board (Nakai, 1978;Arima, 1981) and wood and wood-based board com-posites under constant humidity (Park et al, 2010).…”

Section: Bending Creep Curves Of Laminated Woodsmentioning

confidence: 52%

Bending Creep Properties of Cross-Laminated Wood Panels Made with Tropical Hardwood and Domestic Temperate Wood

Park¹,

GONG²,

SHIN³

et al. 2020

Journal of the Korean Wood Science and Technology

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For efficient use and expansion of domestic small-and medium-diameter woods, cross-laminated wood panels composed of tropical hardwoods and domestic temperate woods were fabricated, and the bending creep behavior under long-term loading was investigated. The bending creep curve of the cross-laminated wood panels showed an exponential function graph with a sharp increase at the top right side. The wood panel composed of a teak top layer and larch core and bottom layers recorded the highest initial deformation, and that composed of a merbau top layer and tulip core and bottom layers showed the lowest initial deformation. Creep deformation of the cross-laminated wood panels showed the highest value in that composed of a teak top layer and larch core and bottom layers and showed the lowest value in that composed of a merbau top layer and tulip core and bottom layers. The obtained creep deformation is 3.1-4.3 times that of merbau, however, it is remarkably lower than that of tulip and larch. The highest relative creep was recorded by the wood panel composed of merbau top layer and larch core and bottom layers, whereas that composed of the teak top layer and tulip core and bottom layers showed the lowest relative creep.

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“…The bending strength of the cork board was more substantially improved by reinforcing the cork board's middle layer with three types of thin mesh materials, similar to the bending MOE. However, it was found that this value exhibited a very low value of 1.40%-1.50%, compared with that for oyster oak (Byeon et al, 2016), and was lower than 6.71%-7.20% for OSB, 5.07%-5.44% for MDF, and 11.8%-12.7% for PB (Park et al, 2009).…”

Section: Bending Strengthmentioning

confidence: 73%

“…for oriented strand board (OSB), 0.98%-1.07% for medium density fiberboard (MDF), and 1.11%-1.21% for particleboard (PB; Park et al, 2009).…”

Section: Static Bending Modulus Of Elasticitymentioning

confidence: 99%

Mechanical Properties of Cork Composite Boards Reinforced with Metal, Glass Fiber, and Carbon Fiber

CHA¹,

YOON²,

KWON³

et al. 2022

J. Korean Wood Sci. Technol.

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For effective applicability of reinforced cork, cork composites reinforced with metal, glass fiber, and carbon fiber were developed, and the effects of the reinforcing materials on the mechanical properties of cork composites were investigated. The bending moduli of elasticity (MOE) of cork composites were in the 32.7-35.9 MPa range, while the bending strength values were in the 1.62-1.73 MPa range. The strength performance decreased in the order cork-metal > cork-carbon fiber > cork-glass fiber. The bending MOEs were improved by 29%-41% compared with simple cork boards, while the bending strengths of reinforced cork were 35%-45% higher. The strength performance significantly improved following the incorporation of thin mesh materials into the middle layer of the studied cork composites. The bending strains of the cork composites were remarkably higher compared with oak wood, making them promising for applications that require bending processing, such as curved jointing. The internal bond strengths of the cork composites were 0.26-0.44 MPa, approximately 0.36-0.60 times lower compared with medium-density fiber boards.

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Bending Creep Performances of Hybrid Laminated Woods Composed of Wood-Wood Based Boards

Cited by 6 publications

References 1 publication

Bending Creep Property of Cross-Laminated Woods Made With Six Domestic Species

Bending Creep Property of Cross-Laminated Woods Made With Six Domestic Species

Bending Creep Properties of Cross-Laminated Wood Panels Made with Tropical Hardwood and Domestic Temperate Wood

Mechanical Properties of Cork Composite Boards Reinforced with Metal, Glass Fiber, and Carbon Fiber

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