Analysis of an injury of the head/neck complex due to +Gz impact acceleration

Author

Patra, Amit L. ; Kaleps, Ints ; Perry, Chris E.

Author_Institution

Armstrong Lab., Wright-Patterson AFB, OH, USA

fYear

1996

fDate

29-31 Mar 1996

Firstpage

257

Lastpage

260

Abstract

Eighty-two human impact experiments were conducted on the Armstrong Laboratory vertical deceleration tower to determine the influence of short-duration acceleration applied in the +Gz direction. The exposure was a 10 G impact, with the seat back angle 5 degrees aft and a Dynamic Response Index of 12.5. In the series of tests one subject experienced an end plate mid-thoracic vertebral fracture which appeared to be produced by combined axial (+Gz) and hyper flexion loading. Lack of proper initial position and bracing appear to be the primary contributing factors to the observed response differences and possibly the resultant injury

Keywords

acceleration; aerospace biophysics; aerospace simulation; biomechanics; health hazards; impact (mechanical); +Gz impact acceleration; 10 G impact; Armstrong Laboratory vertical deceleration tower; Dynamic Response Index; aircraft ejection; bracing; end plate mid-thoracic vertebral fracture; head/neck complex; human impact experiments; hyper flexion loading; injury; proper initial position; resultant injury; seat back angle; short-duration acceleration; Acceleration; Back; Head; Humans; Injuries; Laboratories; Neck; Poles and towers; Testing; Torso;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering Conference, 1996., Proceedings of the 1996 Fifteenth Southern

Conference_Location

Dayton, OH

Print_ISBN

0-7803-3131-1

Type

conf

DOI

10.1109/SBEC.1996.493164

Filename

493164