Head-neck finite element model for motor vehicle inertial impact: material sensitivity analysis. Biomed Sci Instrum 2000;36:331-5
Date
06/02/2000Pubmed ID
10834254Scopus ID
2-s2.0-0034111591 (requires institutional sign-in at Scopus site) 22 CitationsAbstract
The aim of this study was to conduct a material sensitivity analysis using a head-neck finite element model (FEM). The model included the skull, C1-T1 vertebrae, intervertebral discs, facet joints, and biomechanically relevant ligaments. Poisson's ratio and elastic modulus of the head-neck components were varied. The loading condition included the impact load applied to the first thoracic vertebra. Commercially available software (LS-DYNA) was used for the analysis. Head angle versus time, head center of gravity trajectory, and head center of gravity angular acceleration responses were computed. In general, the variation of elastic modulus had a higher effect on the response compared to variation of Poisson's ratio. As the elastic modulus was increased, the head angle and angular acceleration increased. The present findings form a first step in the study of computational biomechanics of vehicular-related trauma.
Author List
Stemper BD, Kumaresan S, Yoganandan N, Pintar FAAuthors
Frank A. Pintar PhD Chair, Professor in the Biomedical Engineering department at Medical College of WisconsinBrian Stemper PhD Professor in the Biomedical Engineering department at Medical College of Wisconsin
Narayan Yoganandan PhD Professor in the Neurosurgery department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
AccelerationAccidents, Traffic
Biomechanical Phenomena
Computer Simulation
Finite Element Analysis
Head
Humans
Models, Theoretical
Neck
