关键词: 侧面碰撞；人体损伤；冲击试验；等效加速度；最大作用力

Abstract: Since the layout of urban traffic roads in China is dominated by plane intersections, the probability of vehicle side collision accidents increases year by year with the increase of vehicle ownership, and the damage to passengers is more serious than that of frontal collision. In order to analyze the injuries of various parts of the passenger's body in the process of vehicle side impact, the damage grade analysis and damage mechanics model of the shoulder, chest, abdomen and hip caused by the direct collision between the passenger and the door interior panel are carried out, and a simulation test bench for the side impact of the car door is built. The maximum acceleration and the maximum force of the impact block at different positions are obtained with the changing process of the deformation amount and time of the door. The results show that the maximum equivalent acceleration of shoulder, chest, abdomen and hip is 10.53g, 23.02g, 12.28g and 26.75g, the maximum force is 2 035 N, 3 718.87 N, 2 631.94 N and 5 419.25 N. The damage degree of shoulder is less than AIS4, the injury degree of other parts is less than AIS3.These experimental data provide the basis for the safe travel of front and outside occupants and the reliable design of the door structure.

Key words: Lateral collision; Body injury; Impact test; Equivalent acceleration; Maximum force