Author
Syafiqah Nur Azrie Safri
Bio: Syafiqah Nur Azrie Safri is an academic researcher from Universiti Putra Malaysia. The author has contributed to research in topics: Epoxy & Ultimate tensile strength. The author has an hindex of 10, co-authored 43 publications receiving 588 citations.
Papers
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TL;DR: In this article, the impact properties of hybrid composites manufactured with the aim of improving their structural characteristics, and in particular, is focused on the impact resistance and penetration behaviour of hybrid composite reinforced with natural and synthetic fibres as well as their suitability for modern structural applications.
Abstract: Recently published research indicates that natural fibre based polymer composites have limited applications in advanced structural systems due to their low impact performance. However, natural fibres have great potential for reducing the product weight, lowering material cost, and renewability. Hybrid composites made from a combination of natural/synthetic fibres, natural/natural fibres, or synthetic/synthetic fibres are also receiving attention from both researchers and the industry for structural applications owing to the tailored mechanical and impact properties of these materials. The hybridisation process is one of the paramount and more efficient ways to strengthen and improve the performance of composite materials. This review paper examines the impact properties of hybrid composites manufactured with the aim of improving their structural characteristics, and in particular, is focused on the impact resistance and penetration behaviour of hybrid composites reinforced with natural and synthetic fibres as well as their suitability for modern structural applications.
343 citations
TL;DR: This paper focuses on Malaysia, which reported two waves of COVID-19 cases, which the first wave was successfully ended in less than two months and the second wave arose with worrying situations in early March 2020.
253 citations
01 Jan 2014
TL;DR: In this paper, the deformation and damage mechanisms involved in the impact of targets, for the effective design of composite structures were investigated for a low and high velocity impact, respectively.
Abstract: A question that is naturally raised is how to improve the survivability of aircraft structures regarding low and
high velocity impacts. Since structural failure is caused primarily by fracture, a fundamental understanding of
the mechanisms and mechanics of the material is one of the most important steps needed to solve the problem.
In a high velocity impact, fracture often occurs in an impacted zone where compression is dominant. For a low
velocity impact, invisible cracks often occur, but they cannot be seen using the naked eye. It is important to
understand the deformation and damage mechanisms involved in the impact of targets, for the effective design
of composite structures.
77 citations
64 citations
TL;DR: In this article, the impact and after-impact behavior of multi-walled carbon nanotube (MWCNTs) as nanofiller enhanced flax/carbon fiber composites (FLXC) and flax and glass fibre composites(FLXG) hybrid composites were investigated.
Abstract: Aerospace structures are prone to impact which affected their residual strength. The aim of this paper to investigate the impact and after-impact behaviour of multi-walled carbon nanotube (MWCNTs) as nanofiller enhanced flax/carbon fibre composites (FLXC) and flax/glass fibre composites (FLXG) hybrid composites. Wet lay-up method was used to fabricate the hybrid composites. The hybrid composites were impacted with impact energies ranging from 5J to 20J, with different types of surface susceptible to the impactor to compare their response under loading. Compression after impact (CAI) testing were done to evaluate the after-impact properties of the hybrid composites. Obtained results found that FLXG composites impacted at glass surface (G-FLX) showed better impact properties compared to C-FLX composites. In another end, it was found that the compressive strength of FLXG composites is higher compared to FLXC composites due to severe damage occurred on FLXC composites surface compared to FLXG composites. Therefore, from the results, it can be concluded that FLXG hybrid composites shows good behaviour to be applied as the interior and functional surfaces inside an aircraft.
59 citations
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TL;DR: In this article, the impact properties of hybrid composites manufactured with the aim of improving their structural characteristics, and in particular, is focused on the impact resistance and penetration behaviour of hybrid composite reinforced with natural and synthetic fibres as well as their suitability for modern structural applications.
Abstract: Recently published research indicates that natural fibre based polymer composites have limited applications in advanced structural systems due to their low impact performance. However, natural fibres have great potential for reducing the product weight, lowering material cost, and renewability. Hybrid composites made from a combination of natural/synthetic fibres, natural/natural fibres, or synthetic/synthetic fibres are also receiving attention from both researchers and the industry for structural applications owing to the tailored mechanical and impact properties of these materials. The hybridisation process is one of the paramount and more efficient ways to strengthen and improve the performance of composite materials. This review paper examines the impact properties of hybrid composites manufactured with the aim of improving their structural characteristics, and in particular, is focused on the impact resistance and penetration behaviour of hybrid composites reinforced with natural and synthetic fibres as well as their suitability for modern structural applications.
343 citations
TL;DR: In this article, a bottom tapping stir casting furnace with electromagnetic and ultrasonic stirrer along with squeeze attachment is recommended for the production of metal matrix composites, based on the critical assessment of the literature, especially the mechanical properties of the produced MMCs.
332 citations
TL;DR: In this paper, the authors cover recent developments from 2013-up to date on hybrid composites, based on natural fibers with other fillers, and the current challenges are also presented.
Abstract: Natural fibers, as replacement of engineered fibers, have been one of the most researched topics over the past years. This is due to their inherent properties, such as biodegradability, renewability and their abundant availability when compared to synthetic fibers. Synthetic fibers derived from finite resources (fossil fuels) and are thus, affected mainly by volatility oil prices and their accumulation in the environment and/or landfill sites as main drawbacks their mechanical properties and thermal properties surpass that of natural fibers. A combination of these fibers/fillers, as reinforcement of various polymeric materials, offers new opportunities to produce multifunctional materials and structures for advanced applications. This article intends to cover recent developments from 2013-up to date on hybrid composites, based on natural fibers with other fillers. Hybrid composites preparation and characterization towards their applicability in advanced applications and the current challenges are also presented.
242 citations
TL;DR: In this article, a comprehensive review of advanced composite materials based on thermoplastic polymers, elastomer polymers and thermosetting polymers is presented, which have excellent mechanical performances, high thermal resistance, good fire behavior, high impact resistance, best abrasion resistance, exceptional electric insulation and good rigidity.
222 citations