Failure maps of biocomposites mechanical joints reinforced with natural fibres

Estrada, Rafael G.; Santiuste, Carlos; Barbero, Ever J.

doi:10.1016/j.jcomc.2021.100159

Cited by 1 publication

(1 citation statement)

References 26 publications

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“…There has been increasing interest in using bio-based composites with natural plant bres as potential replacements for traditional composite reinforcement, primarily E-glass, due to their low density, high speci c properties, low cost of raw materials, and renewable nature [6]. A growing interest in environmentally friendly products has prompted researchers to research natural bre based composite materials [7][8][9][10][11][12]. Besides, these researchers have studied and analysed natural bres embedded in polymeric matrix materials in order to assess their suitability, competitiveness, and capabilities.…”

Section: Introductionmentioning

confidence: 99%

Effects of environmental exposures on the barely visible impact damage of flax fibre reinforced biocomposite and its glass fibre hybrids

Ahamed

Dhakal

Zhang

et al. 2022

Preprint

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Exposure of biocomposites to various environmental conditions is a concern when used for structural and semi-structural outdoor applications. This study investigates the effect of different environmental exposures on the low-velocity impact damage behaviour of flax fibre reinforced epoxy composite and its glass/flax hybrids. Flax and flax/glass hybridised epoxy laminates were fabricated using the vacuum infusion technique. A drop-weight low-velocity impact tests were performed on composite laminates at 5 J of incident energy with sub-zero temperatures, i.e., at (-10°C and − 20°C) and room temperature (R.T.). In order to evaluate the induced damage at different temperatures, micro-computed tomography (µ-CT) and visual inspection techniques were employed. The experimental results show that at a sub-zero temperature of -20°C, the flax and hybrid glass/flax composites showed more brittle damage behaviour than at room temperature. Furthermore, these experimental results have shown that alternating hybrid glass/flax laminates exhibited noticeable transverse cracks at R.T. and − 10°C., with higher absorbed energy and maximum impact load-carrying ability arising from positive hybrid effects. Also, it is evidenced from the results that the hybrid approach can be a viable strategy for achieving improved impact performance of natural plant fibre reinforced composites (NPFRCs) when exposed to different environmental conditions.

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