Citation

Zhang F, Wang DZ, Zhou Q, Zhang JH, Wang CB, Zhang Y, Bai SF, Liang YP. Hunan Daxue Xuebao 2006; 33(Suppl): 103-107.

Affiliation

State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Copyright

(Copyright © 2006, Hunan da xue xue bao bian ji bu)

DOI

unavailable

PMID

unavailable

Abstract

A finite element model of 10 m long bus was developed for simulating the impact between the bus and a concrete guardrail. The required regulation test was an angular impact, in which the bus impacted with the guardrail at 20 degree and 80 km/h. Unlike a car crash test that typically lasts about 0.1 seconds, the vehicle-guardrail crash test needs to be monitored for one second or longer. In terms of balancing the structural details and computational efficiency, the bus body frames were modeled with beam elements instead of shell elements, and the shell element sizes were controlled. To capture the impact response, the bus suspension, the tire rotation, the steering, and the tire pressure were also modeled. The simulation correlated well with the test results in the local deformation of the bus, and more importantly, in the post-impact trajectory of the bus.