Thoracic Injury Assessment of Belt Restraint Systems Based on Hybrid III Chest Compression

Paper #:
  • 912895

Published:
  • 1991-10-01
Citation:
Horsch, J., Melvin, J., Viano, D., and Mertz, H., "Thoracic Injury Assessment of Belt Restraint Systems Based on Hybrid III Chest Compression," SAE Technical Paper 912895, 1991, https://doi.org/10.4271/912895.
Pages:
24
Abstract:
Measurement of chest compression is vital to properly assessing injury risk for restraint systems. It directly relates chest loading to the risk of serious or fatal compression injury for the vital organs protected by the rib cage. Other measures of loading such as spinal acceleration or total restraint load do not separate how much of the force is applied to the rib cage, shoulders, or lumbar and cervical spines. Hybrid III chest compression is biofidelic for blunt impact of the sternum, but is “stiff” for belt loading. In this study, an analysis was conducted of two published crash reconstruction studies involving belted occupants. This provides a basis for comparing occupant injury risks with Hybrid III chest compression in similar exposures. Results from both data sources were similar and indicate that belt loading resulting in 40 mm Hybrid III chest compression represents a 20-25% risk of an AIS≥3 thoracic injury.
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