The Hybrid III 5th Female Crash Test Dummy represents the smallest segment of the adult population and derived from scaled data from the Hybrid III 50th Dummy. Originally developed in 1988, the dummy was upgraded in 1991 to evaluate seat belt submarining. It was upgraded again in 1997 to improve the dummy's ability to evaluate airbag aggressiveness, particularly for the car driver close to the steering wheel in the "Out Of Position" (OOP) test condition. The Hybrid III 5th Female dummy is dynamically tested and proven to the latest test conditions and includes the ability to measure the thorax Viscous Criterion.
Head and Neck
The skull and skull cap are one piece cast aluminum parts with removable vinyl skins. The neck is a segmented rubber and aluminum construction with a center cable. It accurately simulates the human dynamic moment/rotation flexion and extension response.
Six high strength spring steel ribs with polymer based damping material attached to a ballasted spine box to simulate the human thorax. The human dynamic force/deflection characteristics are matched in the dummy. Accelerometers mounted on the sternum and in parallel locations on the spine box allow accurate measurement of the Viscous Criterion even at high compression rates. Low friction guides restrain the vertical motion of the rib set in acute airbag loading, and bump stops prevent over compression of the rib cage. The dummy is equipped as standard with a potentiometer and arm to measure deflection between the spine and the sternum.
The cylindrical butyl rubber lumbar spine mounts on an optional six-axis lumbar load cell attached to the pelvis. The straight lumbar spine provides an erect seated posture representing the small statured person in the driving position. The pelvis is a vinyl skin/urethane foam molded over an aluminum casting in the seated position. The ball-jointed femur attachments can have bump stops to reproduce the human leg to hip moment/rotation characteristics. The iliac wings can be fitted with six load bolts to measure the lap belt load points to predict submarining. The legs can accept a full range of knee and tibia displacement and force transducers to evaluate lower leg injury. The foot and ankle is available with an improved range of motion incorporating soft stop ankles and a compressible heel.