Numerical and Experimental Impact Analysis of Square Crash Box Structure with Holes

Abstract:

Numerical and experimental study of the effects of center holes located at opposite sides on dynamic axial crushing of thin-walled square aluminum extrusions column are presented in this paper. The results showed that, by inserting the holes, the impact energy absorption characteristic in a progressive buckling can be improved as the starting location of the plastic deformation is always from holes and peak crush force can be decrease, so that the deceleration does not exceed the limit that can injure the passenger when frontal impact occurs. Here, the results of numerical simulations, conducted using an explicit finite element code, are compared with experimental results for various hole diameter. The results shows that the peak crushing force is decrease, while the mean crushing force is relatively constant.

• Periodical: Applied Mechanics and Materials (Volume 393)
• Pages: 447-452
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.393.447
• Online since: September 2013
• Authors: Tatacipta Dirgantara, Leonardo Gunawan, Ichsan Setya Putra, Sahril Afandi Sitompul, Annisa Jusuf
• Keywords: Axial Crushing, Crashworthiness, Impact, Thin-Walled Structure

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