Real life situations for rear‐seated occupants in far‐side impacts

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Bohman, Katarina^1,2; Shaikh, Junaid³

Real life situations for rear‐seated occupants in far‐side impacts

Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury

Affiliations

¹Autoliv Research, Vårgårda, Sweden

²Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden

³Autoliv India, Bangalore, India
Abstract and keywords

The aim was to describe crash characteristics and injury patterns of MAIS2+ injured, rear seat occupants in far‐side impacts.

The study included weighted NASS‐CDS cases from 1994–2014, all far‐side impacts with the principal directions of force at 8‐10, and 2‐4 o’clock with far‐side, rear‐seated, and 3‐point belted occupants of all ages with AIS2+ injuries.

For adults, 38% of occupants had at least one injury to the thorax, and approximately every third occupant sustained AIS2+ injuries to the head, upper and/or lower extremities. The main injury sources were the seat back (36%), and seat belt (22%). For children (4‐12y), 49% sustained at least one injury to the head, the most commonly injured body region. The struck side interior accounted for 45% of all contact sources, followed by the seat back.

In far‐side impacts, a different injury pattern was found for children compared to adults. While children predominately sustained injuries to the head, adult injuries were spread to several body regions. The variation in injury sources indicates that countermeasures should focus on maintaining occupant in position, rather than directing protection systems to impact surfaces. Evaluation of this load case should include measures of lateral excursion as an addition to traditional ATD measures.

Keywords: Far‐side, Rear seat, Child, Head injury, Chest injury
Links

URL: http://www.ircobi.org/wordpress/downloads/irc16/pdf-files/86.pdf

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