Computer analysis for side impact occupant protection

Izumi, Koji; Okamoto, Atsushi; Yoshikawa, Masayuki; Ishigure, Haruhisa

Affiliations

Abstract

In order to assist in providing effective protection for the occupants in a side impact collision, we must understand the crash phenomena. This understanding assist the effort to control the deformation mode, intrusion velocity, and the like of each section of the vehicle to the extent possible. For that purpose, computer analysis is very effective in that it allows investigation of data which is difficult to segregate by crash testing.

Among side impact test types, this paper deals with the European regulation ECE95. For simulation we used PAM-CRASH finite element code. First, in case of analyzing the side impact with computer, we explain that it is important to install finite element (FE) dummy model by comparing three simulation results, without dummy model, with rigid body dummy model and with FE dummy model. Next, we carried out two cases of simulations that had differences in side structure strengths, with FE dummy model. We compared the crash tests and simulations of the two cases. In these results, we found that the simulation results were reasonably well correlated to the vehicle crash test results within the parameters which we studied.

Cited Works (2)

Year	Entry
1991	Fukushima S, Yamaguchi S, Fukatsu T, Asano K. Door impact test procedure and crush characteristics for side impact occupant protection. In: Proceedings of the 13th International Technical Conference on Experimental Safety Vehicles (ESV). November 4-7, 1991; Paris, France.609-615.
1991	Matsumoto H, Tanaka H. The effect of door structure on occupant injury in side impact. In: Proceedings of the 13th International Technical Conference on Experimental Safety Vehicles (ESV). November 4-7, 1991; Paris, France.509-516.