Table of Contents
International Journal of Vehicular Technology
Volume 2014, Article ID 528125, 8 pages
http://dx.doi.org/10.1155/2014/528125
Research Article

Neck Moment Characterization of Restrained Child Occupant at Realistic Nontest Standard Higher Impact Speed of 32.2 km/h

1Faculty of Engineering, International Islamic University Malaysia, 50728 Kuala Lumpur, Malaysia
2Faculty of Engineering, Universiti Selangor, 40000 Selangor, Malaysia
3Faculty of Engineering, Universiti Teknologi Mara, 40000 Selangor, Malaysia
4Malaysian Institute of Road Safety Research (MIROS), 43000 Selangor, Malaysia

Received 9 April 2014; Accepted 30 June 2014; Published 11 September 2014

Academic Editor: Abdelaziz Bensrhair

Copyright © 2014 S. Shasthri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The effects of bullet vehicle crash impact angle, child restraint system design, and restraint harness slack at side impact speed of 32.2 km/h (20 mph) on moments sustained at the neck by a three-year-old child are investigated. Mathematical models are built using the response surface method based on simulation results whereby good fitness is achieved. The singular and cross interactive effect of each predictor on the neck moment are analyzed. The number of significant parameters affecting the neck moment is shown to be the largest for wide impact angles and the impact angle parameter is largely revealed to be the most sensitive. An ideal safe range for low neck moment has been established to be within angles 45° and 65°. It is further shown that the nature of all parameters effect on the neck moment is highly dependent on the impact angle range.