Hybrid III Sternal Deflection Associated with Thoracic Injury Severities of Occupants Restrained with Force-Limiting Shoulder Belts 910812
A relationship between the risk of significant thoracic injury (AIS ≥ 3) and Hybrid III dummy sternal deflection for shoulder belt loading is developed. This relationship is based on an analysis of the Association Peugeot-Renault accident data of 386 occupants who were restrained by three-point belt systems that used a shoulder belt with a force-limiting element. For 342 of these occupants, the magnitude of the shoulder belt force could be estimated with various degrees of certainty from the amount of force-limiting band ripping. Hyge sled tests were conducted with a Hybrid III dummy to reproduce the various degrees of band tearing. The resulting Hybrid III sternal deflections were correlated to the frequencies of AIS ≥ 3 thoracic injury observed for similar band tearing in the field accident data. This analysis indicates that for shoulder belt loading a Hybrid III sternal deflection of 50 mm corresponds to a 40 to 50% risk of an AIS ≥ 3 thoracic injury.
Citation: Mertz, H., Horsch, J., Horn, G., and Lowne, R., "Hybrid III Sternal Deflection Associated with Thoracic Injury Severities of Occupants Restrained with Force-Limiting Shoulder Belts," SAE Technical Paper 910812, 1991, https://doi.org/10.4271/910812. Download Citation
Harold J. Mertz, John D. Horsch, Gerald Horn, Richard W. Lowne
General Motors Corp.
International Congress & Exposition
Biomechanics of Impact Injury and Injury Tolerances of the Thorax-Shoulder Complex-PT-45, Frontal Crash Safety Technologies for the 90S-SP-0852, Hybrid III: The First Human-Like Crash Test Dummy-PT-44, Seat Belts: The Development of An Essential Safety Feature-PT-92, SAE 1991 Transactions - Passenger Car-V100-6