| Autor: |
Nusholtz GS; Chrysler Motor Corporation, Auburn Hills, MI 48326-2757, USA., Wylie B, Glascoe LG |
| Jazyk: |
angličtina |
| Zdroj: |
Aviation, space, and environmental medicine [Aviat Space Environ Med] 1995 Jul; Vol. 66 (7), pp. 661-7. |
| Abstrakt: |
An experimental and numerical analysis of the impact response of a simple model of the human head is presented. A water-filled 14-cm diameter cylinder was struck by a 10 kg free flying mass. Rigid-body acceleration-time-history and the pressure at the fluid-cylinder interface were monitored during the impact event. Comparisons between the experimental results and the results of a computational model were made. The computational model used is a two-dimensional finite difference code simulating the physical experiment. The code incorporates a thin layer of air and the potential for vaporization along the inside of the cylinder. The study indicates that during a severe impact to the human head, the stresses generated within the brain can result in cavitation on the far side of impact followed by a sudden cavity collapse which can be quite violent. The study identifies how a skull-brain interface and cavitation can potentially affect the internal pressure response of the brain when subjected to a sudden impact. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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