Numerical Simulation of Automotive Crash-box Subjected to Low Velocity Frontal Impact

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外文摘要：Thin walled tubes, particularly those of square or circular cross-section, are the common types of automobile crash-box, which equipped at the front end of a car, is one of the most important automotive parts for crash energy absorption. In the present work, energy absorption characters of square and circular cross-section thin walled tubes at low-velocity frontal impact are investigated respectively by using finite element (F.E) method. The numerical simulations were carried out using the software LS-DYNA. The tubes were modeled using shell element of designation Belytschko-Tsay, which is suitable for large strain analyses. The FE model of the tube was validated by comparing the theoretical calculation results, experimental results and FE model results. Results show that on average the difference of these results was within 10%. The good correlation of results obtained show that the numerical analyses are reliable.

外文关键词：

numerical simulationautomotive crash-boxlow velocity impactenergy absorption

作者：

Li Qing-fen、Liu Yan-jie、Wang Hai-dou、Yan Sheng-yuan

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作者单位：

College of Mechanical and Electrical Engineering, Harbin Engineering University,Harbin 150001, China

College of Mechanical and Electrical Engineering, Harbin Engineering University,Harbin 150001, China College of Civil Engineering, Heilongjiang University, Harbin 150086, China

National Key Laboratory for Remanufacturing, Armored Forces Engineering Institute,Beijing 100072, China

出版年：

2010

Key engineering materials

ISSN：1013-9826

年,卷(期)：2010.417/418