Hybrid III 3 Year Old Child

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• HIII Child Clothing

The Hybrid III 3 Year Old Child Crash Test Dummy is developed in cooperation with the SAE Biomechanics Committees and the National Highway Transport Safety Administration (NHTSA). Originally developed in 1992, the dummy went through a complete upgrade in 1997 to enable the dummy to evaluate airbag aggressiveness when a child is close to a deploying airbag. The "Out Of Position" (OOP) test procedures require the dummy to accurately measure neck loading, chest compression and the Viscous Criterion while being durable and repeatable in these severe test conditions. The dummy can be positioned standing or sitting and can evaluate the safety performance of many types of child restraint systems. The Hybrid III 3 Year Old dummy is dynamically tested and proven to the latest test conditions. The anthropometry of the dummy is derived from University of Michigan Transport Research Institute (UMTRI) studies* and scaled data from the current Hybrid III 50th dummy.

Simulation Models

Humanetics offers highly detailed and fully validated Finite Element Models of its dummies in the codes LS-DYNA, PAM-CRASH, ABAQUS and RADIOSS, along with FE modeling consultancy services.

Dummy Features

Head and Neck

Fiberglass skull and cap with vinyl skin. Certified to head drop impact test. Tri-axial accelerometer pack for HIC calculation and one accelerometer for measurement of head rotation. Neck is a segmented, flexible, molded butyl rubber construction with a center cable to limit elongation. Certified to biofidelic flexion and extension moment/rotation corridors. Optional upper and lower 6 axis neck load cells available.

Upper Torso

Ballasted steel spine box supports three high-strength steel ribs bonded with polymer based damping material. A urethane bib and aluminum sternum carry accelerometers for measurement of Viscous Criterion in frontal impact. Rib vertical motion is limited by upper and lower rib guides and sternum bump stops limit total chest deflection. The upper torso is certified to thorax pendulum impact and lumbar flexion tests. The shoulder pivot joints and elastomeric links provide biofidelic ranges of motion and bi-axial shoulder load cells are available.

Lower Torso

Cylindrical rubber lumbar spine with cable mounts on an optional 6 axis lumbar load cell. The pelvic bone is a welded aluminum construction with optional biaxial load cells on each ilium at the ASIS, a biaxial pubic load cell, and a left and right acetabulum uniaxial load cell. A triaxial accelerometer pack mounts in the rear of the pelvis. Limbs are urethane and Ensolite™ foam molded over a welded steel skeleton.