Study on Energy Distribution in Automobile Offset Frontal Impact 2000-05-0201
The vast majority of automotive frontal crashes take place with 30% to 70% partial overlap of vehicles. In this paper a light-bus refitted from truck chassis is analyzed and a finite element model emphasizing the frame is set up.Offset frontal impact is studied using ANSYS/LS-DYNA3D. Through statistics from several simulation results(overlap 25%,35%,50%,75%,100%) the relationship between deformation and overlap ratio is established. Plastic energy-absorbing model in full-size frontal impact is extended to offset frontal one. The energy distribution vs.collision width under offset impact is subjected to hyperbolic one.
Liu Xingrong, Zhu Maotao, Ge Ruhai, Wang Xiao
Jiangsu University of Science and Technology,Zhenjiang, Jiangsu, P.R.China
Seoul 2000 FISITA World Automotive Congress