G030114 自動車側面ポール衝突を想定した角形鋼管の側面圧縮による吸収エネルギー評価([G03011]材料力学部門一般セッション(11):座屈と衝撃)

概要

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Pole side impact is one of the most common collision types of vehicles. The pole side impact with high vehicle speed induces not only local collapse but also bending of the vehicle. First, deformation and absorbed energy of the vehicle in pole side impact experiment at impact speed of 80 km/h was investigated. Next, lateral compression and three-point bending tests of rectangular steel tube specimens were performed, as a simple modeling of vehicle deformation at the pole side impact. It was found that the former induced mainly local collapse, while the latter induced bending of the tube specimen. Based on these facts, the test of lateral compression followed by three-point bending of the tube specimen was performed. In this test, the bending deformation occurred after the local collapse, similar to the deformation behavior of vehicles at the pole side impact experiment. The variation of the absorbed energy in the test was similar to that of the vehicle experiment. From this result, it can be summarized that the deformation and absorbed energy of the vehicle in pole side impact is possible to be modeled by the lateral compression and three-point bending tests of the rectangular steel tube.
一般社団法人日本機械学会の論文
2011-09-11