Development of a dummy abdomen capable of injury detection in side impacts

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Maltha, J.¹; Stalnaker, R. L.¹

Development of a dummy abdomen capable of injury detection in side impacts

Proceedings of the 25th Stapp Car Crash Conference

Affiliations

¹Research Institute for Road Vehicles, TNO-Delft, The Netherlands
Abstract

A prototype of an abdomen for injury detection in side-impacts is developed. This design can in principle be built into existing side-impact dummies. Necessary biomechanical data was obtained from free-fall studies with cadavers simulating impacts with intruding doors.

The design consists of a structure with built in tolerance limits and injury detection is obtained by a single channel go/no-go signal; thus complicated continuous force and penetration measurements are avoided. The abdomen has a rigid penetration stop at the critical tolerance level. This stop is covered by a composite material giving stiffness characteristics identical to the human abdomen. Coded contact switches activated by springs when a critical load is exceeded are mounted between this material and the rigid stop.

The abdomen is presented in detail together with the results of impact tests. The materials for the abdomen were selected with assistence of a computer aided design study described in this paper.

The interfacing with some existing dummies and a possible extension to frontal abdomen injury detection is discussed.
Links

DOI: 10.4271/811019

SAE: 811019

Cited By (11)

Year	Entry
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2001	Rouhana SW, Elhagediab AM, Walbridge A, Hardy WN, Schneider LW. Development of a reusable, rate-sensitive abdomen for the Hybrid III family of dummies. Stapp Car Crash J. 2001;45:33-60. SAE 2001-22-0002.
2010	Klinich KD, Flannagan CAC, Nicholson K, Schneider LW, Rupp JD. Factors associated with abdominal injury in frontal, farside, and nearside crashes. Stapp Car Crash J. 2010;54:73-91. SAE 2010-22-0005.
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1996	Saul RA. Development of a Methodology for Prediction of Liver Injury Due to Side Impact Loading in Motor Vehicle Accidents [PhD thesis]. The Ohio State University; 1996.