We have completed extensive evaluations of seat belt buckles for possible release during a crash. In lab studies, we have characterized the acceleration level required for a buckle to inertially release over a range of webbing tensions. We then look at the tension-acceleration relationship for the buckle during a crash test to learn whether it was close to releasing. Several pieces of test equipment were developed to support these evaluations.
In another project, we evaluated the performance of ABS brakes on a particular vehicle model. Data from 30 transducers was collected and analyzed for thousands of braking maneuvers on a variety of road surfaces, and under various conditions. The design of this multi-year test program was a collaborative effort between the Exponent project team and our client. Other components and subsystems we have studied have included transmissions, tires, gears, seat recliners, interior padding, exhaust systems, and a variety of occupant protection systems.