Shock and Vibration

Shock and Vibration / 2004 / Article

Open Access

Volume 11 |Article ID 182739 | 16 pages | https://doi.org/10.1155/2004/182739

Capabilities of Helmets for Preventing Head Injuries Induced by Ballistic Impacts

Received20 Jun 2003
Revised12 Dec 2003

Abstract

The limiting performance of ballistically loaded helmets designed to reduce head injuries is studied analytically. The projectile does not penetrate the helmet. This analysis evaluates the absolute minimum of the peak displacement of the helmet shell relative to the head, provided that criteria measuring the severity of head injuries lie within prescribed limits. Rather than optimize a specific design configuration, e.g. a viscoelastic foam liner, characteristics of a time-dependent force representing the helmet liner are calculated. The formulation reduces the limiting performance analysis to an optimal control problem.

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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