Sled acceleration control for low-speed impact testing and transient response studies

Sled acceleration control for low-speed impact testing and transient response studies.

Occupant kinematics in low-speed frontal sled tests: Human volunteers, Hybrid III ATD, and PMHS.

A total of 34 dynamic matched frontal sled tests were performed, 17 low (2.5g, Δv=4.8kph) and 17 medium (5.0g, Δv=9.7kph), with five male human volunteers of approximately 50th percentile height and weight, a Hybrid III 50th percentile male ATD, and three male PMHS. Each volunteer was exposed to two impulses at each severity, one relaxed and one braced prior to the impulse. A total of four test...

Low-Velocity Impact Testing

IMPACT TESTS are used to study dynamic deformation and failure modes of materials. Low-velocity impact techniques can be classified as plate-on-plate, rod-on-plate, plate-onrod, or rod-on-rod experiments. Two types of plate-on-plate impact tests have been developed: wave propagation experiments and thin-layer high-strain-rate experiments. The plate-on-plate experiments are further classified as...

Testing High-Speed SoCs Using Low-Speed ATEs

We present a test methodology to allow testing high-speed circuits with low-speed ATEs. The basic strategy is adding an interface circuit to partially supply test data, coordinate sending the test patterns and collecting the signatures. An ILP formulation is presented to globally optimize such coordination in terms of the overall test time and the hardware cost.

Motion Analysis of Human Cervical Vertebrae Du Ring Low Speed Rear Impacts by the Simulated Sled

In the pursuit of the mechanism of minor neck injuries, the motion of the cervical vertebrae was analyzed under different conditions such as the seating position and seat performance characteristics. At first, a new impact sied was developed which simulated actual car impact acceleration. This did not involve any risks for the subjects. Ten volunteers participated in the experiment under the su...