Development of Motorcycle helmet for pre-school Children Using Metal Foam

Prasartthong, Nattawood; Koetniyom, Saiprasit; Carmai, Julaluk

doi:10.1088/1757-899x/501/1/012018

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…The standard helmet drop test based on the DOT FMVSS 218 required an anvil to place horizontally, while the modified drop test required a flat anvil to make an angle of 45 • with the horizontal plane. This head-helmet finite element model was validated against the DOT drop tests conducted by Prasartthong et al [39].…”

Section: Impact Configurations According To the Dot Fmvss 218mentioning

confidence: 99%

“…A flat anvil was used for the crown and the front locations, while a hemisphere anvil was used for the rear and side locations. The headhelmet model was set to impact the rigid flat and hemisphere anvils at 5.86 and 5.08 m/s, respectively, to simulate the experiments of Prasartthong et al [39]. The anvil was restricted to move in all directions.…”

Section: Impact Configurations According To the Dot Fmvss 218mentioning

confidence: 99%

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Investigation of the Effect of Child Helmet Design Parameters on Head and Brain Injuries Using Reduced-Order Modelling

Prasartthong

Carmai

2022

Applied Sciences

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A helmet is the main protective equipment for a child pillion passenger. A safe helmet must be able to mitigate head and brain injuries resulting from high head impact loading. A lightweight helmet is preferable, especially for children. This paper proposed to study the effect of materials, liner thickness, and friction at the head–helmet interface on linear and rotational accelerations using reduced-order modelling. A child head–helmet finite element model was developed and validated against an experiment. Finite element simulations were conducted to generate training data for the establishment of reduced-order models which were subsequently used to predict the linear and rotational accelerations for various helmet parameters. The prediction could be performed in a very short time compared to its corresponding finite element simulation. The use of aluminium foam enhanced mitigation of the linear and rotational accelerations as well as weight reduction. This study also revealed that the head–helmet friction coefficient had a strong effect on the rotational acceleration, while the liner thickness predominantly affected the linear acceleration. However, the liner thickness had less influence on the rotational acceleration when the head–helmet friction was low. The risk of brain concussion as well as diffusional injury could be reduced by enabling low friction at head–helmet surface.

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Section: Impact Configurations According To the Dot Fmvss 218mentioning

confidence: 99%

Section: Impact Configurations According To the Dot Fmvss 218mentioning

confidence: 99%

Investigation of the Effect of Child Helmet Design Parameters on Head and Brain Injuries Using Reduced-Order Modelling

Prasartthong

Carmai

2022

Applied Sciences

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“…Advanced FE models of helmets have been developed, accurately modeling its components geometry, material properties, contact/interactions, etc. Some of these models were developed with the goal to optimize the helmet design according to specific criteria [23,27,28,[30][31][32][33][34][35][36][37][38]. These coupled with FE head models make it possible to predict traumatic brain injuries [39][40][41][42][43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Certified Motorcycle Helmets: Computational Evaluation of the Efficacy of Standard Requirements with Finite Element Models

Fernandes

Sousa

Ptak

et al. 2020

MCA

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Every year, thousands of people die in the European Union as a direct result of road accidents. Helmets are one of the most important types of personal safety gear. The ECE R22.05 standard, adopted in 2000, is responsible for the certification of motorcycle helmets in the European Union and in many other countries. Two decades later, it is still being used with the same requirements, without any update. The aim of this work is to evaluate the efficacy of a motorcycle helmet certified by such standard, using computational models as an assessment tool. First, a finite element model of a motorcycle helmet available on the market was developed and validated by simulating the same impacts required by the standard. Then, a finite element model of the human head is used as an injury prediction tool to assess its safety performance. Results indicate a significant risk of brain injury, which is in accordance with previous studies available in the literature. Therefore, this work underlines and emphasizes the need of improving the requirements of ECE R22.05.

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A damage model for the simulation of crack initiation and propagation in automotive windshield laminated glass structures

Fernandes

Sousa

Ptak

2020

International Journal of Crashworthiness

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Development of Motorcycle helmet for pre-school Children Using Metal Foam

Cited by 3 publications

References 3 publications

Investigation of the Effect of Child Helmet Design Parameters on Head and Brain Injuries Using Reduced-Order Modelling

Investigation of the Effect of Child Helmet Design Parameters on Head and Brain Injuries Using Reduced-Order Modelling

Certified Motorcycle Helmets: Computational Evaluation of the Efficacy of Standard Requirements with Finite Element Models

A damage model for the simulation of crack initiation and propagation in automotive windshield laminated glass structures

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