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Fracture Behavior of the Skull Frontal Bone Against Cylindrical Surfaces
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1970 by SAE International in United States
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A test program has been conducted to determine the fracture behavior of the human frontal bone against two different rigid cylindrical surfaces; one surface was of 1 in. radius and one was of 5/16 in. radius; both were 6½ in. long. The purpose of this research program was to provide human tolerance data which would:
Assist in the design of structures likely to be impacted by the human head.
Extend the calibration range of frangible headforms.
Twelve cadavers were tested in this program; seven against the 1 in. radius cylinder and five against the 5/16 in. radius cylinder. The test arrangement employed a guided drop of the test surface against a stationary head which was free to rebound. Drop heights were increased progressively until borderline fractures were obtained.
The large radius shape consistently yielded linear fractures indicating that it is effectively a blunt surface. Fracture loads ranged 950-1650 lb. The small radius shape yielded two linear fractures and three localized elliptical fractures indicating that it is in the transition range between a blunt and concentrated surface. Fracture loads ranged 700-1600 lb.
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CitationHodgson, V., Brinn, J., Thomas, L., and Greenberg, S., "Fracture Behavior of the Skull Frontal Bone Against Cylindrical Surfaces," SAE Technical Paper 700909, 1970, https://doi.org/10.4271/700909.
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