The Application of High-Strength Steel for Threshold Beam

At present, more and more high strength steel are applied in the automotive industry due to their promising achievements in light-weight and crashworthiness. To verify the safety attribution of high strength steel components, this paper deals with the performance evaluation of the threshold beam used for high strength steel on its rigidity and crashworthiness. In the three-point static compression test, two threshold beams using different high strength steel are used and their performance are compared to each other. Then, a component simulation model is built, with which the crash performance of the threshold beam system in the completed car impact test can be evaluated. Finally, a white body test is carried out to analyze the threshold of the beam’s dynamic performance using different high strength steel.