Energy Absorption Capacity in Natural Fiber Reinforcement Composites Structures

López‐Alba, Elías; Schmeer, Sebastian; Díaz, Francisco Valenzuela

doi:10.3390/ma11030418

Cited by 24 publications

(18 citation statements)

References 21 publications

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“…In recent years, plant fibers have been utilized as reinforcements to replace asbestos and fiberglass in composites for various applications due to their distinctive characteristics, such as sustainability, biodegradability, abundance, cost savings, lower density, high specific strength, modulus, acoustic absorption, and good energy absorption properties [1,2,3]. However, plant fiber-based composites are mainly limited to non-structural or semi-structural applications due to lack of confidence in their mechanical performance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Water Absorption on Low-Velocity Impact Damage of Composites with Multi-Layer Structured Flax Fiber

et al. 2019

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Temperature and moisture can cause degradation to the impact properties of plant fiber-based composites owing to their complex chemical composition and multi-layer microstructure. This study focused on experimental characterization of the effect of important influencing factors, including manufacturing process temperature, exposure temperature, and water absorption, on the impact damage threshold and damage mechanisms of flax fiber reinforced composites. Firstly, serious reduction on the impact damage threshold and damage resistance was observed, this indicated excessive temperature can cause chemical decomposition and structural damage to flax fiber. It was also shown that a moderate high temperature resulted in lower impact damage threshold. Moreover, a small amount of water absorption could slightly improve the damage threshold load and the damage resistance. However, more water uptake caused severe degradation on the composite interface and structural damage of flax fiber, which reduced the impact performance of flax fiber reinforced composites.

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Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Water Absorption on Low-Velocity Impact Damage of Composites with Multi-Layer Structured Flax Fiber

et al. 2019

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“…Therefore, the attenuation coefficient of M6 (40%) changes slightly during the multi-impact process. As the EPDM network exhibits a fiber structure, the elasticity modulus can be determined based on an empirical equation proposed in [32][33][34][35].…”

Section: Recoverability Analysis: Polymer Fiber Network Enhances Elasmentioning

confidence: 99%

“…Here, E represents the elasticity modulus of the composite material; m E the elasticity modulus of the pure activated carbon film; f E the elasticity modulus of the fiber; ξ a non-negative value, which represents the fiber reinforcement effect and depends on the geometry, arrangement, and loading conditions of the fibers; and f ϕ is the fiber volume fraction. As the EPDM network exhibits a fiber structure, the elasticity modulus can be determined based on an empirical equation proposed in [32][33][34][35].…”

Section: Recoverability Analysis: Polymer Fiber Network Enhances Elasmentioning

confidence: 99%

Improved Energy Absorption Characteristics Based on Elastic Polymer-Modified Porous Material for Multiple Extreme Mechanical Impacts

Zhang

Dai

et al. 2019

Applied Sciences

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Energy absorbing materials are crucial for the protection of electronic devices in various applications. In particular, the protection of materials from multiple extreme mechanical impacts imposes stringent requirements on the characteristics of energy absorption and recoverability. In this paper, a novel design of composite material, elastic polymer-modified porous carbon, is proposed to meet such urgent requirements. At the micro level, the polymer fibers form an elastic skeleton in which porous carbon particles are enveloped. Due to such microstructure, the composite material exhibits excellent performance of energy absorption and recoverability simultaneously, which are validated via various experiments. Furthermore, the microphysical mechanism of its superior energy absorption characteristics is demonstrated theoretically. Additionally, the optimized mass proportions of the two composite phases are discussed. In general, this novel design of energy absorbing material improves the reliability of electronic devices and systems exposed to multiple extreme mechanical impacts.

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“…Lower loadings of PAL in KP02 compared to KP01 caused a reduction of lignin composition in KP02 which result in lower impact strength of KP02 compared to KP01. Furthermore, the difference in impact strength of these two composites could also be due to the difference in stiffness and strength of the two material which contribute to different energy absorption behavior [16]. Similarly KS02 shows higher impact strength compared to KS01.…”

Section: Fig 4 Dtg Curves Of Ks01 and Kp01 Composites B Mechanicalmentioning

confidence: 99%

Effect of Natural Fiber (NF) Mix on Mechanical Strength of NF Plastic Composites (NFPC)

Kamarun¹,

Zawawi²,

Seth³

et al. 2019

IJEAT

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Natural fibers from plants are gaining importance and may substitute wood in the production of wood plastic composites (WPC). To ensure continuity of fiber supply and sustainability of WPC industries, fibers of various types could be mixed together to obtain Mix WPC. However, research need to be carried out to identify the contribution of different fiber type collectively to the mechanical properties of Mix natural fiber polymer composite (NFPC). In this study, preliminary work on the use of natural fibre (NF) such as kenaf, sugar palm and pineapple leaf fibers in the preparation of Mix NFPC were carried out. Four different fiber mix samples with different fiber ratio and size were formulated using polypropylene (PP) as the polymer matrix. Montmorrilonite (MMT) filler was added at constant amount for enhancement of composite mechanical properties. Samples were mixed and prepared using a twin screw extruder and mini injection moulding resepectively. Individual fibers and NFPC prepared were characterized using thermogravimetric analyzer (TGA). Tensile, flexural and impact strength of the composites were determined. Generally, it was found that addition of fiber mix at 50% fiber loading enhance the tensile and flexural strength of the various NFPC with minimal exceptions. The impact strength of the composites were comparable to that of blank PP implying that addition of fiber gives additional advantage besides being eco-friendly. It was also found that higher kenaf loading and different size of fiber mix contribute positively to the various strengths measured. In addition to that, composition of individual fibers also contribute to the mechanical properties of the NFPCs

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Energy Absorption Capacity in Natural Fiber Reinforcement Composites Structures

Cited by 24 publications

References 21 publications

Effect of Temperature and Water Absorption on Low-Velocity Impact Damage of Composites with Multi-Layer Structured Flax Fiber

Effect of Temperature and Water Absorption on Low-Velocity Impact Damage of Composites with Multi-Layer Structured Flax Fiber

Improved Energy Absorption Characteristics Based on Elastic Polymer-Modified Porous Material for Multiple Extreme Mechanical Impacts

Effect of Natural Fiber (NF) Mix on Mechanical Strength of NF Plastic Composites (NFPC)

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