Oblique impact testing of bicycle helmets

被引：72
作者：
Mills, N. J. [1 ]
Gilchrist, A. [1 ]
机构：
[1] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
来源：
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2008年 / 35卷 / 09期
基金：
英国工程与自然科学研究理事会;
关键词：
bicycle; helmet; impact; foam; protection;
D O I：
10.1016/j.ijimpeng.2007.05.005
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The performance of bicycle helmets was investigated in oblique impacts with a simulated road surface. The linear and rotational accelerations of a headform, fitted with a compliant scalp and a wig, were measured. The peak rotational accelerations, the order of 5 krad s(-2) when the tangential velocity component was 4 m s(-1), were only slightly greater than in comparable direct impact tests. Oblique impact tests were possible on the front lower edge of the helmet, a site commonly struck in crashes, without the headform striking the 'road'. Data characterizing the frictional response at the road/shell and helmet/head interfaces, were generated for interpretation via FEA modelling. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1075 / 1086
页数：12
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