Citation

van der Horst MJ, Bovendeerd PHM, Happee R, Wismans JSHM, Kingma H. Proc. Int. Tech. Conf. Enhanced Safety Vehicles 2001; 2001: 12 p..

Copyright

(Copyright © 2001, In public domain, Publisher National Highway Traffic Safety Administration)

DOI

unavailable

PMID

unavailable

Abstract

To study the mechanics of the neck during rear end impact, in this paper an existing global human body model and an existing detailed submodel of the neck were combined into a new model. The combined model is validated with responses of volunteers and post mortem human subjects (PMHSs) subjected to rear end impacts of resp 5g and 12g. The volunteers (n=7, 7 tests) were seated on a standard car seat with head restraint, while the PMHSs (n=3, 6 tests) were placed on a rigid seat without head restraint. The model shows good agreement with the PMHS responses when muscle tensile stiffness is increased towards published PMHS tissue properties. For the volunteer simulations, initial seating posture and head restraint position were found to strongly influence the model response. More leaning forward (increasing of horizontal distance head restraint) results in larger T1 and head motions. A correct vertical position of the head restraint (top of head in one line with top of head restraint) reduces the head extension angle. The model has the potential to study injury mechanisms.