An investigation of seat design parameters influencing neck loads in low speed vehicle rear-impacts.

Author(s)
Chhor, A. Svensson, N.L. Griffiths, M. & Kjellberg, S.
Year
Abstract

The application of finite element methods to the analysis of occupant neck responses in rear-end vehicle crashes is presented. A finite element (FE) model of a 50th percentile Hybrid III dummy, which had been previously used for simulating frontal impact, was appropriately modified to handle rear-impact cases. The crux of these modifications was the development of a deformable FE model of the Hybrid III neck. This new neck model was correlated using data from the Amended Part 572 Head-Neck Pendulum compliance test, and finally incorporated into the Hybrid III dummy model to permit better analysis of the head-neck region. Responses of the so modified full dummy model were correlated with experimental sled test data. The FE Hybrid III rear-impact model was used within the PAM CRASH explicit dynamic finite element code to conduct a parametric study of seat properties on the head-neck responses. Recommendations are presented for mechanical and geometrical seat properties to reduce head and neck loads in rear-impact. (A)

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Publication

Library number
C 11601 (In: C 11439 b [electronic version only]) /91 / IRRD 896690
Source

In: Proceedings of the Fifteenth International Technical Conference on Enhanced Safety of Vehicles ESV, Melbourne, Australia, 13-16 May 1996, Volume 2, p. 1717-1727, 3 ref.

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