Head Flail Corridors for use in Occupant-Centric Vehicle Design: Summary and Recommendations
Abstract
In aircraft crashes, injuries to the head and upper torso are frequently reported, with head injury reported most frequently of all body regions. Head strikes due to flail are of particular importance because loss of awareness or consciousness can prevent evacuation post-crash. Because preventing flail of the head and body is of utmost importance for occupant survival, the Aircraft Crash Survival Design Guide (ACSDG), which was published in 1989 to guide crashworthy aircraft design, defines occupant flail envelopes. The current ACSDG occupant flail envelopes, which are based on a single frontal impact test with an anthropometric test device (ATD), are inadequate for modern Army aviation. This report quantifies the head flail response for a well-restrained occupant using a collection of legacy human research volunteer exposure data that includes frontal, axial, lateral, oblique, and off-axis impacts. Final recommended flail corridors for anteroposterior, lateral, and vertical head position of the occupant are provided.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 28, 2021
- Accession Number
- AD1182732
Entities
People
- Alicia M. Abraczinskas
- Allison M. Robinette
- Ardyn V. Olszko
- Frederick T. Brozoski
- Shannon M. Mcgovern
- Valeta C. Chancey
Organizations
- Oak Ridge Institute for Science and Education
- United States Army Aeromedical Research Lab