Citation

Perry CE. SAFE J. 1999; 29(2): 65-74.

Affiliation

Air Force Research Lab, Wright-Patterson AFB, OH, USA

Copyright

(Copyright © 1999, SAFE Association)

DOI

unavailable

PMID

unavailable

Abstract

To counteract the effects of brain injury, head protection has been designed into environments where severe head impact are probable. An experimental effort was conducted to evaluate the effectiveness of various foam pads in reducing trauma to the head following impact with the ACES II headrest. A series of vertical drops with an instrumented headform were conducted using the existing ACES II headrest, HGU-55/P flight helmets, two types of foam samples (Confor and F-Cell foam), and a Helmet Drop Tower (HDT) facility. The probability of head injury, as determined by the Head Injury Criteria (HIC), was calculated using measured impact acceleration of the headform for each impact surface. The headform acceleration, resulting HIC values, and probability of severe brain injury values for the Confor foam tests were all less than the comparative values for either the standard ACES II headrest, or the headrest with the F-Cell foam.

Language: en