A Study on Head Injury Risk in Car-to-Pedestrian Collisions using FE-Model

Document Number: 2009-01-2263

Date Published: June 2009

Author(s):
Jikuang Yang - SKLADV, Hunan University, China

Abstract:
Head injury quite frequently occurs in car-to-pedestrian collisions, which often places an enormous burden to victims and society. To address head protection and understand the head injury mechanisms, in-depth accident investigation and accident reconstructions were conducted. A total of 6 passenger cars to adult-pedestrian accidents were sampled from the in-depth accident investigation in Changsha China. Accidents were firstly reconstructed by using Multi-bodies (MBS) pedestrian and car models. The head impact conditions such as head impact velocity; position and orientation were calculated from MBS reconstructions, which were then employed to set the initial conditions in the simulation of a head model striking a windshield using Finite Element (FE) head and windshield models. The intracranial pressure and stress distribution of the FE head model were calculated and correlated with the injury outcomes. Reconstruction results show that the coup/contrecoup pressure, Von Mises stress and shear stress are important physical parameters to predict the brain injury risks.

File Size: 572K
Product Status: In Stock

See other papers presented at Digital Human Modeling for Design and Engineering Conference and Exhibition, June 2009, Gothenburg, SWEDE, Session: Dynamics & Impact #2 (Development of Injury Criteria)

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >