SID IIs dummy pelvic plug. Fully replaces imported similar products. The head, neck, and legs of the SID IIs dummy are also remarkably similar to those of the Hybrid III 5th percentile dummy; its upper torso uses a combination of *** high-strength steel bands and polymer damping materials to simulate the shoulders, ribs, and abdomen. Linear potentiometers are directly installed on the ribs, working in conjunction with triaxial accelerometers to measure lateral displacement and the Viscous Criterion (V*C). A cylindrical lumbar spine maintains the dummy's upright posture. The pelvis consists of a detachable rigid urethane iliac wing. On the impact side of the hip bone force sensor, a tightly fitted energy-absorbing rigid black plug is designed, enhancing test repeatability. Used in safety index protocols for side impact tests, installed on the side of the pelvis of dummies in both front and rear rows to monitor the injury values to the dummy's pelvis during real vehicle collision tests.