Abstract:

The impact energy transfer paths were simulated and analyzed for a passenger car in pole side
impact accident to evaluate the passenger car’s security, and to investigate the influence of both collision
locations and speeds on body security. A finite element model for car’s pole side impact was developed by using
LS-DYNA and HyperWorks software at the collision speed direction of 75° to body longitudinal axis. And special
accidents were respectively simulated when vertical impact plane passes the dummy head center, the rib center,
the hip point on driver’s seat at the collision speed of 29, 32, 35 km/h. The results show that the worst security of
body structure occurs when the vertical impact plane passing the dummy head center at the collision speed of
32 km/h, for all considered situations of car’s 75° pole side impact.

Key words: vehicle passive safety, pole side impact, car body security, finite element simulation