1970-02-01

Fracture Behavior of the Skull Frontal Bone Against Cylindrical Surfaces 700909

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:
  1. 1.
    Assist in the design of structures likely to be impacted by the human head.
  2. 2.
    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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Practical Use of Two Piston Ring Set for Gasoline Engine

950817

View Details

TECHNICAL PAPER

Cavitation During Head Impact

970390

View Details

TECHNICAL PAPER

Status of the MADYMO 2D Airbag Model

881729

View Details

X