Design and fabrication of construction helmet by using hybrid composite material

Murali, B.; Nagarani, J.

doi:10.1109/iceets.2013.6533372

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…Fabricate a military helmet using coir fiber-reinforced epoxy composite. The weight percentage of fiber for different composition is 20, 40, 50, 60, 70, 80, and 85 taken [12]. Based on the description above, a study was conducted on the effect of variations in the volume fraction of coco fiber on polyester-reinforced composites as helmet material, using a variation of the fiber volume fraction of 20%, 40%, and 60% using the method compression molding.…”

Section: Introductionmentioning

confidence: 99%

Composite Manufacturing of Coir Fiber-Reinforced Polyester as a Motorcycle Helmet Material

Sasria

2022

JMPM

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Berdasarkan standar SNI 1811-2007 helm di Indonesia terbuat dari bahan polimer ABS (Acrylonitrile Butadiene Styrene) yang harganya relatif mahal. Oleh karena itu, dibutuhkan alternatif pengganti dengan pemanfaatan limbah serat alam sebagai bahan pembuatan komposit. Tujuan penelitian ini yaitu menganalisis pengaruh komposisi material, ketahanan impak, dan kekuatan bending material helm dari serat sabut kelapa dan resin poliester dengan perbandingan 20%:80%, 40%:60% dan 60%:40%. Ukuran panjang serat yang digunakan adalah 50 mm dengan perlakuan kimia pada serat menggunakan larutan NaOH 5% selama 2 jam. Komposit dibuat dengan metode compression molding. Penelitian ini menggunakan metode pengujian berupa uji impak ASTM D6110, uji tekuk ASTM D790-03, uji mikrostruktur, dan uji SEM. Didapatkan hasil data dengan nilai tenaga patah optimum sebesar 55,542 J dan nilai kekuatan impak optimum sebesar 0,408 J/mm2 pada spesimen B. Hasil uji bending didapatkan nilai kekuatan tekuk optimum sebesar 52,785 MPa dan nilai modulus elastisitas optimum sebesar 13,064 GPa pada spesimen A. Standar uji kekuatan impak menurut SNI 1811-2007 adalah 29000 J/mm, sedangkan nilai kekuatan impak spesimen ini sebesar 0,408 J/mm2 sehingga masih belum mencukupi untuk dijadikan bahan alternatif helm. Based on the SNI 1811-2007 standard, helmets in Indonesia are made of ABS (Acrylonitrile Butadiene Styrene) polymer material which is relatively expensive. Therefore, an alternative is needed by utilizing natural fiber waste reinforced as a composite material. The purpose of the study was to analyze the effect of material composition, impact resistance, and bending strength of helmet material from coconut fiber and polyester resin with a ratio of 20%: 80%, 40%: 60%, and 60%: 40%. The fiber length used is 50 mm, with chemical treatment on the fiber using 5% NaOH solution for 2 hours. Composites were made by the compression molding method. In this study, testing was used in the form of impact test ASTM D6110, bending test ASTM D790-03, microstructure test, and SEM test. The data was obtained with the optimum fracture strength value of 55.542 J and the optimum impact strength value of 0.408 J/mm2 on specimen B. In the bending test, the data was obtained with the optimum bending strength value of 52.785 MPa and the optimum elastic modulus value of 13,064 GPa at specimen A. The impact strength test standard according to SNI 1811-2007 is 29000 J/mm, while the impact strength value of this specimen is 0.408 J/mm2. Thus, it is still not sufficient to be used as an alternative helmet material.

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Section: Introductionmentioning

confidence: 99%

Composite Manufacturing of Coir Fiber-Reinforced Polyester as a Motorcycle Helmet Material

Sasria

2022

JMPM

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“…Recently, many researchers proposed that having natural fibres would be an added advantage in the reduction of the component's weight [329,330]. Besides, NFRP has excellent properties in impact and compression strength.…”

Section: Military Helmetsmentioning

confidence: 99%

Enhancement of impact toughness and damage behaviour of natural fibre reinforced composites and their hybrids through novel improvement techniques: A critical review

Ahmed

Dhakal

Zhang

et al. 2021

Composite Structures

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“…Whenever at least two ingredients with various properties are consolidated together, they structure a Compounds material [1][2][3][4]. Compounds are multifunctional material frameworks that give qualities not realistic from any discrete material [32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Tensile, Flexural and Surface Hardness Properties of Wool Grit/Silicone Polymer Composites

Kumar¹,

Aravindan²,

Andrews³

2019

IJITEE

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 Abstract: Grit fortified polymer Compounds obligate numerous tenders as a class of auxiliary ingredients as a result of the instance of manufacture, generally minimal effort of generation. The grit which fills in as a fortification in strengthened plastics might be engineered or regular. An examination has been completed to utilize Wool grit which is a characteristic grit copiously accessible in India. The target of the contemporary graft is to think about the impact of grit stacking and mechanical conduct of Wool grit fortified Silicone Polymer Compoundss. This paper demonstrates the assessment of elasticity, flexural quality and external rigidity of the Wool-Silicone Polymer Compounds. It likewise finishes up the impact of grit stacking on elasticity, flexural quality and external rigidity of the Wool Silicone Polymer Compounds. Aspergillus flavus (Link) toxins reduces the fitness of dengue vectorAedes aegypti (Linn.) and their non-target toxicity against aquatic predator, Microbial pathogenesis,128,281-287,2019. 33.

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Design and fabrication of construction helmet by using hybrid composite material

Cited by 7 publications

References 7 publications

Composite Manufacturing of Coir Fiber-Reinforced Polyester as a Motorcycle Helmet Material

Composite Manufacturing of Coir Fiber-Reinforced Polyester as a Motorcycle Helmet Material

Enhancement of impact toughness and damage behaviour of natural fibre reinforced composites and their hybrids through novel improvement techniques: A critical review

Tensile, Flexural and Surface Hardness Properties of Wool Grit/Silicone Polymer Composites

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