Strength testing of Poplar duo beams, Populus x euramericana (Dode) Guinier cv. I-214, with fibre reinforcement

Basterra, Luis-Alfonso; Rello, Luis Acuña; Casado, M.; López, Gamaliel; Bueno, Alex Fabiano

doi:10.1016/j.conbuildmat.2012.05.001

Cited by 24 publications

(23 citation statements)

References 3 publications

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“…But, in addition to those positive features, these materials have some negative features, such as low loadcarrying capacity and other low mechanical properties (DEMIRKIR et al, 2013;GAFF et al, 2015). Different fibers, such as natural fibers and synthetic fibers, are used to reinforce wood-based composite boards (XU et al, 1998a;CAI, 2006;MOHEBBY et al, 2011;GÜNTEKIN and AYDIN, 2015) and load-carrying structural wooden elements (BORRI et al, 2013;BASTERRA et al, 2012). The main aim of these reinforcement related studies was to obtain a new composite material with high mechanical performance.…”

Section: Introductionmentioning

confidence: 99%

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Screw and Nail Holding Properties of Plywood Panels Reinforced With Glass Fiber Fabric

Bal

2017

CERNE

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ABSTRACT:In this study, plywood and reinforced plywood with glass fiber fabric were produced with rotary peeled poplar veneers using phenol formaldehyde adhesive. Screw and nail holding tests were conducted to obtain the characteristics of the plywood and reinforced plywood boards. One control group and three different test groups were used. The effects of glass fiber fabric on the screw direct withdrawal, screw-head pull-through, and lateral nail resistance were determined. The results of the tests indicated that the reinforced plywood's resistances to direct withdrawal of the screw, screw-head pullthrough, and lateral nail resistance were significantly higher than those of the unreinforced plywood. In addition, reinforcement of the plywood boards provided longer displacement at maximum load. PROPRIEDADES DE FIXAÇÃO DE PARAFUSOS E PREGOS EM PAINÉIS COMPENSADOS DE MADEIRA REFORÇADOS COM TECIDO DE FIBRA DE VIDRORESUMO: Neste estudo, painéis compensados e painéis compensados reforçados com tecido de fibra de vidro foram produzidos com lâminas do desenrolamento do álamo usando adesivo de fenol-formaldeído. Testes de fixação de parafusos e pregos foram realizados para obter as características dos painéis compensados e painéis compensados reforçados com tecido de fibra de vidro. Os efeitos do tecido de fibra de vidro sobre o arrancamento direto do parafuso, puxado pela sua cabeça, e resistência lateral do prego foram determinados. Os resultados dos testes indicaram que a resistência do painel reforçado ao arrancamento direto do parafuso, puxado pela sua cabeça, e resistência lateral do prego foram significativamente superiores em relação aos valores encontrados para compensados não reforçados. Além disso, o reforço em painéis compensados resultou em maior elongação na carga máxima.

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Section: Introductionmentioning

confidence: 99%

“…Xu et al (1998b) studied the mechanical properties of plywood reinforced by bamboo or jute and reported some positive results. Basterra et al (2012) studied reinforced duo beams with flax fibers, glass fibers, and carbon fibers. Borri et al (2013) reinforced timber beams with hemp fibers, flax fibers, basalt fibers, and bamboo fibers.…”

Section: Introductionmentioning

confidence: 99%

Screw and Nail Holding Properties of Plywood Panels Reinforced With Glass Fiber Fabric

Bal

2017

CERNE

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“…Poplar wood also has the capability to bind a large volume of CO2 (one hectare of poplar woodland binds up to 10 to 15 tons per year), and in combination with its wide availability on almost all continents, it is a species whose growth and processing is environmental friendly (Basterra et al 2012). P. x canadensis (PC) wood, according to literature, has a density of approximately 320 to 400 kg/m 3 and relatively good mechanical properties, particularly bending strength, approximately 40 to 70 MPa, and bending modulus of elasticity, approximately 7 to 10 GPa (Green et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Non-Destructive Methods Based on Natural Frequency for Determining the Modulus of Elasticity of Cupressus lusitanica and Populus x canadensis

et al. 2016

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A non-destructive method for measurement of the modulus of elasticity (MOE) was compared with the static method on beams of Cupressus lusitanica and Populus x canadensis. The dynamic method is based on the principle of the resonance frequency, using longitudinal vibrations (Timber Grader MTG, accelerometer) and the static method for measurement of the flexural modulus of elasticity is according to EN 408 (2012). The differences between the ascertained dynamic and static MOE values were 1.1% to 2.4% for the Populus x canadensis sample and 12.7% to 15.5% for the Cupressus lusitanica sample. Furthermore, the correlation dependence of the applied methods was determined and the regression equations are shown. Experimental measurement showed the effect of the knot clusters, which appeared primarily in Cupressus lusitanica samples and considerably impacted the resultant values.

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“…The different structural types were determined using Ward's hierarchical clustering method with squared Euclidean distance as the similarity metric (Ward 1963). Finally, the statistical significance of the structural typology was evaluated using non-parametric tests (Kruskal-Wallis and Mood's median) (Basterra et al 2012;Montealegre et al 2014). Finally, the statistical significance of the structural typology was evaluated using non-parametric tests (Kruskal-Wallis and Mood's median) (Basterra et al 2012;Montealegre et al 2014).…”

Section: Forest Structural Typologymentioning

confidence: 99%

Assessing post-storm forest dynamics in the pyrenees using high-resolution LIDAR data and aerial photographs

et al. 2015

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Strength testing of Poplar duo beams, Populus x euramericana (Dode) Guinier cv. I-214, with fibre reinforcement

Cited by 24 publications

References 3 publications

Screw and Nail Holding Properties of Plywood Panels Reinforced With Glass Fiber Fabric

Screw and Nail Holding Properties of Plywood Panels Reinforced With Glass Fiber Fabric

Comparison of Non-Destructive Methods Based on Natural Frequency for Determining the Modulus of Elasticity of Cupressus lusitanica and Populus x canadensis

Assessing post-storm forest dynamics in the pyrenees using high-resolution LIDAR data and aerial photographs

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