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CLC number: O34

On-line Access: 2010-01-01

Received: 2009-03-25

Revision Accepted: 2009-09-24

Crosschecked: 2009-10-12

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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.2 P.97-105

http://doi.org/10.1631/jzus.A0900169


Lower extremity injuries in vehicle-pedestrian collisions using a legform impactor model


Author(s):  A. ABVABI, A. NASR, A. NOORPOOR, M. S. KIASAT

Affiliation(s):  Department of Automotive Engineering, Iran University of Science and Technology, Tehran, Iran; more

Corresponding email(s):   a_abvabi@auto.iust.ac.ir, a_nasr@iust.ac.ir

Key Words:  Finite element model (FEM), Legform impactor, Pedestrian safety, Lower extremity injury, Composite bumper


A. ABVABI, A. NASR, A. NOORPOOR, M. S. KIASAT. Lower extremity injuries in vehicle-pedestrian collisions using a legform impactor model[J]. Journal of Zhejiang University Science A, 2010, 11(2): 97-105.

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author="A. ABVABI, A. NASR, A. NOORPOOR, M. S. KIASAT",
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doi="10.1631/jzus.A0900169"
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%T Lower extremity injuries in vehicle-pedestrian collisions using a legform impactor model
%A A. ABVABI
%A A. NASR
%A A. NOORPOOR
%A M. S. KIASAT
%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900169

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A1 - A. NASR
A1 - A. NOORPOOR
A1 - M. S. KIASAT
J0 - Journal of Zhejiang University Science A
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SP - 97
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0900169


Abstract: 
Though the bumper of a vehicle plays a major role in protecting the vehicle body against damage in low speed impacts, many bumpers, particularly in large vehicles, are too stiff for pedestrian protection. In designing a bumper for an automobile, pedestrian protection is as important as bumper energy absorption in low speed collisions. To prevent lower extremity injuries in car-pedestrian collisions, it is important to determine the loadings that car front structures impart on the lower extremities and the mechanisms by which injury is caused by these loadings. The present work was focused on gaining more insight into the injury mechanisms leading to both ligament damage and bone fracture during bumper-pedestrian collisions. The European Enhanced Vehicle-safety Committee (EEVC) legform impactor model was introduced and validated against EEVC/WG17 criteria. The collision mechanism between a bumper and this legform impactor was investigated numerically using LS-DYNA software. To identify the effect of the bumper beam material on leg injuries, four analyses were performed on bumpers that had the same assembly but were made from different materials.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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