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Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets

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Bibliographic Details
Main Authors: Mohd Na'im, Abdullah, Mohd Khairul Hafiz, Muda, Faizal, Mustapha, Mohd Saffuan, Yaakob
Other Authors: naimabdullah14@gmail.com
Format: Article
Language:English
Published: Kementerian Pendidikan Tinggi (KPT), Malaysia 2018
Subjects:
Oblique impact
Cycling helmets
Natural-fiber-based cycling helmet
The kenaf helmet
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/52046
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spelling my.unimap-520462018-03-03T07:40:05Z Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets Mohd Na'im, Abdullah Mohd Khairul Hafiz, Muda Faizal, Mustapha Mohd Saffuan, Yaakob naimabdullah14@gmail.com Oblique impact Cycling helmets Natural-fiber-based cycling helmet The kenaf helmet Link to publisher's homepage at http://www.mohejournal.com/index.php/mohe This paper describes the performance of a natural-fiber-based cycling helmet in an oblique impact with a simulated road surface. The linear accelerations and impact energy of a head form weighing 4 kg were measured and calculated. Helmet standards require helmets to be tested with a simple drop test onto an anvil. The maximum permitted deceleration of the dropped head form is typically 300g, which is equivalent to an impact velocity of 20 km/h (12.5 mph). The two helmets being tested were suspended onto a guided drop-table in the particular desired impact orientation. Just before impact, the test object was released from suspension so it can move unrestrained thereafter. The main advantage of this process is that the object is free to move naturally during impact, which provides for more realistic drop-testing. For oblique impact test, all helmets tested passed the requirement set by EN1078:2007 with linear acceleration measured lower than 250 g in a free fall test from 1.5 m platform. By comparing the resultant linear acceleration with a commercial cycling helmet, Kabuto Aero SL, flax aero helmet shows 11.82% reduction in the resultant linear acceleration with 214.16g. The Kenaf helmet recorded 168.48g, which corresponds to a 30.63% reduction in the resultant linear acceleration compared to the Kabuto helmet and 21.33% reduction compared to the Flax helmet. 2018-03-03T07:40:05Z 2018-03-03T07:40:05Z 2016 Article Movement, Health & Exercise (MoHE), vol.5(1), 2016, pages 57-67 2231-9409 (Print) 2289-9510 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/52046 http://www.mohejournal.com/index.php/mohe en Kementerian Pendidikan Tinggi (KPT), Malaysia
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Oblique impact
Cycling helmets
Natural-fiber-based cycling helmet
The kenaf helmet
spellingShingle Oblique impact
Cycling helmets
Natural-fiber-based cycling helmet
The kenaf helmet
Mohd Na'im, Abdullah
Mohd Khairul Hafiz, Muda
Faizal, Mustapha
Mohd Saffuan, Yaakob
Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
description Link to publisher's homepage at http://www.mohejournal.com/index.php/mohe
author2 naimabdullah14@gmail.com
author_facet naimabdullah14@gmail.com
Mohd Na'im, Abdullah
Mohd Khairul Hafiz, Muda
Faizal, Mustapha
Mohd Saffuan, Yaakob
format Article
author Mohd Na'im, Abdullah
Mohd Khairul Hafiz, Muda
Faizal, Mustapha
Mohd Saffuan, Yaakob
author_sort Mohd Na'im, Abdullah
title Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
title_short Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
title_full Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
title_fullStr Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
title_full_unstemmed Oblique impact analysis on Kenaf (Hibiscus Cannabinus) and flax (Linum Usitatissimum) natural fiber sport cycling helmets
title_sort oblique impact analysis on kenaf (hibiscus cannabinus) and flax (linum usitatissimum) natural fiber sport cycling helmets
publisher Kementerian Pendidikan Tinggi (KPT), Malaysia
publishDate 2018
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/52046
_version_ 1643803427476602880
score 13.222552

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