Title: Experimental and numerical modal analysis of the human head-neck system - a new finite element model validation method

Authors: F. Meyer, N. Bourdet, R. Willinger

Addresses: University of Strasbourg, UMR 7507 ULP-CNRS, 2, rue Boussingault, F-67000 Strasbourg, France. ' University of Strasbourg, UMR 7507 ULP-CNRS, 2, rue Boussingault, F-67000 Strasbourg, France. ' University of Strasbourg, UMR 7507 ULP-CNRS, 2, rue Boussingault, F-67000 Strasbourg, France

Abstract: The cervical spine is one of the most complex structures in the human skeleton and its behaviour during impact is still poorly understood. Therefore, there is a need for further experimental and theoretical analysis. This study is based on an existing FE human neck model and focuses on its numerical modal analysis. Natural frequencies and mode shapes of the head-neck system are identified in three dimensions. For specific modes it was possible to superimpose the numerical result on the experimental one in order to perform the model validation in the frequency domain.

Keywords: cervical spine; finite element model; FEM; modal analysis; neck model; head-neck system; rear-end impact; car accidents; vehicle safety; low speed impact; kinematics validation; mechanical properties; ligament rigidity; intervertebral discs; biomechanics.

DOI: 10.1504/IJVS.2005.007543

International Journal of Vehicle Safety, 2005 Vol.1 No.1/2/3, pp.145 - 167

Published online: 03 Aug 2005 *

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