Flexural behavior and water absorption of asymmetrical sandwich composites from natural fibers and cork agglomerate core

Hoto, Rene; Furundarena, G.; Torres, Juan Pablo; Muñoz, Eva; Andrés, Javier; Garcı́a, Juan Antonio

doi:10.1016/j.matlet.2014.04.088

Cited by 53 publications

(23 citation statements)

References 18 publications

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“…Three-dimensional (3D) integrated woven spacer composites consist of two fabric face sheets and an integrated hollow core. These two face sheets are bonded together by piles which woven into the deck layers thus forming integrated woven spacer composites [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets

Zhao

Jiang

et al. 2015

Materials Letters

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Section: Introductionmentioning

confidence: 99%

Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets

Zhao

Jiang

et al. 2015

Materials Letters

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“…Therefore, these materials are undergoing increasingly wide use in semi-structural applications [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Dynamic crushing behaviour of agglomerated cork

Sánchez-Sáez

García-Castillo

Barbero

et al. 2015

Materials & Design (1980-2015)

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-For reasons of energy saving and pollution reduction, there is a growing interest in the development of lightweight structures manufactured with materials of natural origin and recyclable. Agglomerated cork is a mixture of natural cork and an organic binder, and can be considered an alternative to polymeric foams used in structural applications with a high capacity of energy absorption. One of these applications involves impact-absorbing elements in vehicles, which are subjected mainly to dynamic compressive loads. In this work, the dynamic crushing behaviour of agglomerated cork was experimentally studied, analysing the influence of the specimen thickness on the energy-absorption capacity, contact force, displacement, and strain. Dynamic crushing tests with specimens of four different thicknesses were performed in a drop-weight tower. An increase in the maximum contact force, displacement, and strain was observed when the impact-energy/thickness ratio increased. For each specimen thickness a linear variation of the maximum displacement and energy absorbed with the impact-energy/thickness ratio was found. It was observed that the energy absorbed by agglomerated cork did not depend on the specimen thickness, but only on the impact energy.

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“…The results were in accordance with those from Sim et al (2005), who found that the basalt fibers provided a good ductile behavior, which resulted in higher possible deflections. Hoto et al (2014) compared flax and basalt fibers for various NSM FRP on the compression and tension sides of cork panels. These results showed a higher specimen deflection with BFRP on the tension side.…”

Section: Density and Moisture Contentmentioning

confidence: 99%

“…Wood-based panels can be strengthened with aluminum sheets (Lu et al 2015). Studies on plywood reinforced with basalt fibers are scarce, but there are a few studies available on basalt fiber-reinforced timber beams (de La Rosa García et al 2013;Schober et al 2015;de La Rosa García et al 2016;Fernando et al 2016;Thorhallsson et al 2017) and BFRP cork panels (Torres et al 2013;Hoto et al 2014). In general, basalt in combination with wood is not well studied.…”

Section: Introductionmentioning

confidence: 99%

Reinforcing effect of a thin basalt fiber-reinforced polymer plywood coating

Kramár

Král

2019

BioRes

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The strengthening effect of basalt fiber-reinforced epoxy coatings was investigated with regard to their areal weight and position on the compression or tension side of plywood. Beach plywood was coated on one side with a basalt fiber-reinforced epoxy matrix. Two biaxial and one twilled fabric with areal weights of 170 g/m2, 210 g/m2, and 340 g/m2 respectively were used. The thickness of the plywood was 21 mm. The results showed the best reinforcing effect was obtained with the highest weight when mounted on the tension side of the parallel specimens. The bending strength of these specimens was improved by 15.7%. The perpendicular specimens were positively reinforced by the fiber-reinforced polymers on both the compression and tension sides. The tension reinforcement provided a higher deflection, which was further analyzed using digital image correlation. The evaluated data indicated significant displacement of the neutral axis. The impact strength of the parallel specimens was not improved by the reinforcement, but all of the reinforced perpendicular specimens were significantly strengthened.

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Flexural behavior and water absorption of asymmetrical sandwich composites from natural fibers and cork agglomerate core

Cited by 53 publications

References 18 publications

Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets

Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets

Dynamic crushing behaviour of agglomerated cork

Reinforcing effect of a thin basalt fiber-reinforced polymer plywood coating

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