Browse Publications Technical Papers 2020-01-1221

Invesstigation of test method to reproduce Car-to-Car side impact 2020-01-1221

Side impact is one of the severest crash modes among real-world accidents. In US market, even though most of vehicles recently have achieved top rating in crash performance assessment programs, it is reported that there is hardly any sign of decreasing trend in side-impact fatalities for the last few years. In response to this trend, IIHS is planning to introduce a new test protocol. One of clarification points on current side impact tests is whether the present side Moving Deformable Barrier (MDB) test reproduces real-world Car-to-Car (C2C) crash. Hence, this study addressed to identify key factors to reproduce C2C side impact by a series of parametric CAE study of MDB as follows: i) with and without suspension of MDB ii) change of height of Center Of Gravity (COG) of MDB ⅲ) barrier dimensions iv) barrier stiffness. Reproducibility of the MDB tests in the CAE study was evaluated by three indices of struck vehicle such as (1) kinematics, (2) body deformation modes (Plan and Front View) and (3) dummy injuries. As a result, it was found that to reproduce C2C side impact, three factors on MDB, a) the height of the center of force, b) dimension and c) vertical force distribution are dominant.


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