Comprehensive, three-dimensional head-neck model for impact and high-acceleration studies.

R L Huston; J C Huston; M W Harlow

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PubMed · 623587

Comprehensive, three-dimensional head-neck model for impact and high-acceleration studies.

R L Huston·J C Huston·M W Harlow

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Abstract

A three-dimensional, 54-degree-of-freedom computer model of the head/neck system is presented and discussed. The model consists of nine rigid bodies representing the head and vertebrae together with a series of nonlinear springs and dampers modelling the soft tissue. The soft tissue modelling involves the discs, muscles, and ligaments. The discs are modelled as two-parameter viscoelastic solids; the muscles are also modelled as two-parameter viscoelastic solids, but only able to exert force in tension; and the ligaments are modelled as nonlinear elastic bands exerting force only in tension. Equations of motion are written for this model by using Lagrange's form of d'Alembert's principle, a virtual work type principle. Computer algorithms are written to efficiently compute the numerical coefficients of these equations. The equations are integrated numerically for a number of specific cases where experimental data are available. Results show excellent agreement between the model and the experiments.

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Acceleration Accidents, Traffic Biomechanical Phenomena Head Humans Models, Biological Models, Structural Neck Journal Article Research Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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R L Huston, J C Huston, M W Harlow. 1978. Comprehensive, three-dimensional head-neck model for impact and high-acceleration studies.. https://pubmed.ncbi.nlm.nih.gov/623587/

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