Liangjie Wang
College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
Hao Chen
College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
Haining Chen
College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
ABSTRACT
Crashworthiness of thin-walled members plays an important role in the vehicle safety. Few researches on the effects of crash trigger on behavior of thin-walled straight beam had been conducted in frontal impact, which restrict the design of thin-walled straight beam significantly. The objective of the present work is to investigate the effect of crash trigger design on longitudinal beam crash performance based on a longitudinal beam frontal impact simulation. The square walled straight beam finite element model was established. LS-DYNA software was used for collision simulation. The effect of derivational groove numbers and spacing on the crash performance of thin-walled beams was investigated through deformation of the stringers, energy absorption and impact force. Simulation results showed that the derivational groove numbers had little effect on energy absorption, but its increase can reduce the peak force of the collision in some extent. The derivational groove spacing had significant effect on both energy absorption and collision force, which decreased with derivational groove spacing for the thin-walled beam. This study provides guidance for optimization of the vehicle energy absorption.
PDF References Citation
Received: August 02, 2013;
Accepted: October 06, 2013;
Published: November 13, 2013
How to cite this article
Liangjie Wang, Hao Chen and Haining Chen, 2013. Effects of Crash Trigger on Behavior of Thin-walled Straight Beam in Frontal Impact. Journal of Applied Sciences, 13: 5210-5214.
DOI: 10.3923/jas.2013.5210.5214
URL: https://scialert.net/abstract/?doi=jas.2013.5210.5214
DOI: 10.3923/jas.2013.5210.5214
URL: https://scialert.net/abstract/?doi=jas.2013.5210.5214
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