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Intracranial Pressure Relationships in the Protected and Unprotected Head
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English
Abstract
This paper represents a continuation of previous research on closed head impact in the human cadaver and an associated mathematical model. The long term goal of the study is to describe the relationships between head impact events which might be useful in understanding what takes place in the living human. In the current study, two different sets of experiments were conducted 1) sequential impacts on a single embalmed helmeted specimen and 2) impact experiments on individual helmeted unembalmed specimens. Impact parameters and intracranial pressures were measured and discussed. A finite element model is presented which can predict the intracranial pressures throughout the brain for the first 8 msec. It is apparent that the helmet prevents high magnitude, short duration intracranial pressures and that posterior pressures develop after the, acceleration phase and helmeted impacts.
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Authors
Citation
Nahum, A., Smith, R., Raasch, F., and Ward, C., "Intracranial Pressure Relationships in the Protected and Unprotected Head," SAE Technical Paper 791024, 1979, https://doi.org/10.4271/791024.Also In
References
- Nahum A.M. Smith R.W. “An Experimental Model for Closed Head Impact Injury.” Proc. 20th Stapp Car Crash Conf. SAE 760825 1976
- Nahum A.M. Smith R.W. Ward C.C. “Intracranial Pressure Dynamics During Head Impact.” Proc. 21st Stapp Car Crash Conf. SAE 770922 1977
- Ward C.C. “A Head Injury Model.” NATO Advisory Group for Aerospace Research and Development Conference Preprint No. 263, Models and Analogues for the Evaluation of Human Biodynamic Response, Performance and Protection 1978
- Liu Y.K. “Biomechanics of Closed Head Impact.” ASCE Journal Engineering Mechanics Division February 1978
- Malkus D.S. Hughes T.J.R. “Mixed Finite Element Methods Reduced and Selective Integration Techniques: A Unification of Concepts.” Computer Methods in Applied Mechanics and Engineering
- “Determination of the Physical Properties of Tissues of the Human Head-Final Report.” Biomechanics Laboratories of Department of Theoretical and Applied Mechanics College of Engineering West Virginia University May 1970