Impact head injury analysis using an explicit finite element human head model

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Ruan, J. S.¹; Khalil, T. B.¹; King, A. I.¹

Impact head injury analysis using an explicit finite element human head model

J Traffic Med. 1997;25(1-2):33-40

Affiliations

¹Bioengineering Center, Wayne State University, Detroit, MI 48202
Abstract

Objective: to investigate the dynamic response and injury mechanisms of the human head in direct impact conditions.

Methods: a three-dimensional comprehensive ﬁnite element human head model was developed to associate mechanical parameters with mechanisms of head injury due to direct impact. An explicit integration ﬁnite element technique was applied to the analysis. Model response was compared with test data in terms of impact force, head acceleration, and intracranial pressure.

Results: the computed skull stress was 85 MPa, intracrania] pressures were 255 and -108 kPa. brain tensile and shear strains were 4-4.5%. Parametric studies were carried out to identify the factors affected head injury.

Conclusion: the potential risk of skull fracture. focal coup-contrecoup brain injury, and Diﬁuse Axonal Injury (DAI) can be studied by ﬁnite element modeling in simulating head impact.

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Cited By (15)

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2003	Ruan J, El-Jawahri R, Chai L, Barbat S, Prasad P. Prediction and analysis of human thoracic impact responses and injuries in cadaver impacts using a full human body finite element model. Stapp Car Crash J. 2003;47:299-321. SAE 2003-22-0014.
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2003	Anderson RWG, Brown CJ, Blumbergs PC, McLean AJ, Jones NR. Impact mechanics and axonal injury in a sheep model. J Neurotrauma. October 2003;20(10):961-974.
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