Differences in head injuries between pedestrian and two-wheeler based on real-world accident reconstruction

doi:10.3969/j.issn.1674-8484.2021.04.006

Abstract

Abstract:

This paper reconstructed a series of collision boundary conditions of Vulnerable Road User (VRU); and some car collision accident cases from the In-depth Investigation of Vehicle Accident in Changsha (IVAC) database by using a multi-rigid body method to protect the VRUs to better protect the VRU. Numerically reproduced the head/brain injury occurred in the accident cases by using a finite element (FE) and a multi-rigid body coupling method. Investigated comprehensively the differences between head kinematics and injury responses of pedestrian and two-wheeler accidents. The results show that the two-wheelers’ head collision angle is 42.57° with a relative collision speed being 51.94 km/h; the pedestrian’s head collision angle is 50.23° with a relative collision speed being 72.54 km/h. These parameters are clearly different from the test boundary conditions (65° and 40 km/h) according current pedestrian safety regulations or programs. The overall head injury-risk of pedestrians is generally higher than that of two-wheelers. In particular, the brain injury-risk of pedestrians is significantly greater than that of two-wheelers.

Key words: automotive safety, pedestrian protection, two-wheelers, head injury, accident reconstruction, coupled model

CLC Number:

TP273

XU Hongzhen, WANG Fang, HU Lin, WANG Zhen, LI Fan. Differences in head injuries between pedestrian and two-wheeler based on real-world accident reconstruction[J]. Journal of Automotive Safety and Energy, 2021, 12(4): 483-489.

Figures/Tables 10

References 37

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