Nurul Qastalani, Radzuan and Mohd Hasnun Ariff, Hassan and Mohd Nadzeri, Omar and Khairil Anwar, Abu Kassim (2024) The influence of helmet certification in motorcycle helmets protective performance. Journal of Mechanical Engineering and Sciences (JMES), 18 (1). 9811 -9823. ISSN 2289-4659 (print); 2231-8380 (online). (Published)
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Abstract
The convenience of online shopping has increased access to a vast array of helmet options and deals for motorcyclists. However, the e-commerce enables an influx of unverified and potentially hazardous helmets lacking the rigorous quality control into the market, hence, placing unaware bargain seekers at risk. The non-certified variants questions in terms of impact protection abilities because they visually look similar to certified helmets. This study compared certified full face and open face helmets against their non-certified counterparts by analysing injury predictor metrics. Using a test rig simulating 5.58 ± 0.29 m/s impacts, an anthropomorphic test device wearing both helmet types and certification statuses measured peak resultant linear and angular accelerations, head injury criterion alongside brain injury criteria scores. The data revealed comparable side and rear impact performance between non-certified and certified helmets. However, frontal impacts exposed deficiencies without certification. The non-certified full face helmets registered over twice the peak linear acceleration of certified while open face types still exceeded certified by 40% in frontal impacts. Additionally, non-certified full face helmets indicated up to 100% predicted concussion risks in side and frontal crashes based on the angular accelerations. The poorer frontal impact and elevated injury odds demonstrate certification's key safety advantages that certification should not be ignored while it still providing more protection than no helmet. However, individual needs to carefully select helmets due to performance differences of helmets. Riders should ultimately prioritize proven protection given the severe consequences of head trauma though non-certified may suffice for some low-risk environments.
| Item Type: | Article |
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| Uncontrolled Keywords: | Traumatic Brain Injury; Helmet testing; Peak resultant linear acceleration; Peak resultant angular acceleration; Head injury criterion; Brain injury criterion |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 07 May 2024 03:21 |
| Last Modified: | 07 May 2024 03:21 |
| URI: | http://umpir.ump.edu.my/id/eprint/41130 |
| Download Statistic: | View Download Statistics |
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